Merge branch 'develop' into hdf5_1_10.sync

112 files changed, 2804 insertions, 2245 deletions

diff --git a/MANIFEST b/MANIFEST
index c3da162..9ab179f 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -752,6 +752,7 @@
 ./src/H5Ocont.c
 ./src/H5Ocopy.c
 ./src/H5Odbg.c
+./src/H5Odeprec.c
 ./src/H5Odrvinfo.c
 ./src/H5Odtype.c
 ./src/H5Oefl.c
@@ -940,6 +941,7 @@
 ./test/cross_read.c
 ./test/dangle.c
 ./test/deflate.h5
+./test/direct_chunk.c
 ./test/dsets.c
 ./test/dt_arith.c
 ./test/dtypes.c
@@ -2588,6 +2590,7 @@
 ./tools/test/perform/build_h5perf_alone.sh
 ./tools/test/perform/build_h5perf_serial_alone.sh
 ./tools/test/perform/chunk.c
+./tools/test/perform/direct_write_perf.c
 ./tools/test/perform/gen_report.pl
 ./tools/test/perform/iopipe.c
 ./tools/test/perform/overhead.c
@@ -2665,7 +2668,6 @@
 ./hl/test/COPYING
 ./hl/test/H5srcdir_str.h.in
 ./hl/test/Makefile.am
-./hl/test/dectris_hl_perf.c
 ./hl/test/dsdata.txt
 ./hl/test/dslat.txt
 ./hl/test/dslon.txt
@@ -2684,8 +2686,8 @@
 ./hl/test/test_ds_be.h5
 ./hl/test/test_ds_le.h5
 ./hl/test/test_dset_append.c
-./hl/test/test_dset_opt.c
 ./hl/test/test_file_image.c
+./hl/test/test_h5do_compat.c
 ./hl/test/test_image.c
 ./hl/test/test_ld.c
 ./hl/test/test_ld.h5
diff --git a/c++/src/H5Location.cpp b/c++/src/H5Location.cpp
index 2dceb6e..8df7467 100644
--- a/c++/src/H5Location.cpp
+++ b/c++/src/H5Location.cpp
@@ -1827,7 +1827,7 @@ H5O_type_t H5Location::childObjType(const char* objname) const
     H5O_type_t objtype = H5O_TYPE_UNKNOWN;
 
     // Use C API to get information of the object
-    herr_t ret_value = H5Oget_info_by_name(getId(), objname, &objinfo, H5P_DEFAULT);
+    herr_t ret_value = H5Oget_info_by_name2(getId(), objname, &objinfo, H5O_INFO_BASIC, H5P_DEFAULT);
 
     // Throw exception if C API returns failure
     if (ret_value < 0)
@@ -1902,7 +1902,7 @@ H5O_type_t H5Location::childObjType(hsize_t index, H5_index_t index_type, H5_ite
     H5O_type_t objtype = H5O_TYPE_UNKNOWN;
 
     // Use C API to get information of the object
-    ret_value = H5Oget_info_by_idx(getId(), objname, index_type, order, index, &objinfo, H5P_DEFAULT);
+    ret_value = H5Oget_info_by_idx2(getId(), objname, index_type, order, index, &objinfo, H5O_INFO_BASIC, H5P_DEFAULT);
 
     // Throw exception if C API returns failure
     if (ret_value < 0)
@@ -1944,7 +1944,7 @@ unsigned H5Location::childObjVersion(const char* objname) const
     unsigned version = 0;
 
     // Use C API to get information of the object
-    herr_t ret_value = H5Oget_info_by_name(getId(), objname, &objinfo, H5P_DEFAULT);
+    herr_t ret_value = H5Oget_info_by_name2(getId(), objname, &objinfo, H5O_INFO_HDR, H5P_DEFAULT);
 
     // Throw exception if C API returns failure
     if (ret_value < 0)
diff --git a/c++/src/H5Object.cpp b/c++/src/H5Object.cpp
index 5d102d7..b95e222 100644
--- a/c++/src/H5Object.cpp
+++ b/c++/src/H5Object.cpp
@@ -244,7 +244,7 @@ unsigned H5Object::objVersion() const
     unsigned version = 0;
 
     // Use C API to get information of the object
-    herr_t ret_value = H5Oget_info(getId(), &objinfo);
+    herr_t ret_value = H5Oget_info2(getId(), &objinfo, H5O_INFO_HDR);
 
     // Throw exception if C API returns failure
     if (ret_value < 0)
@@ -270,7 +270,7 @@ int H5Object::getNumAttrs() const
 {
     H5O_info_t oinfo;    /* Object info */
 
-    if(H5Oget_info(getId(), &oinfo) < 0)
+    if(H5Oget_info2(getId(), &oinfo, H5O_INFO_NUM_ATTRS) < 0)
         throw AttributeIException(inMemFunc("getNumAttrs"), "H5Oget_info failed");
     else
         return(static_cast<int>(oinfo.num_attrs));
diff --git a/configure.ac b/configure.ac
index 422096c..9868743 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1954,12 +1954,12 @@ AC_DEFINE_UNQUOTED([PRINTF_LL_WIDTH], ["$hdf5_cv_printf_ll"],
 ## around to help people migrate to 1.10.x and newer versions.
 ##
 AC_ARG_ENABLE([debug],
-              [AS_HELP_STRING([--enable-debug], [DEPRECATED: use --enable-build-mode=debug])],
-              [AC_MSG_ERROR([--enable-debug is deprecated, use --enable-build-mode=debug instead.])])
+              [AS_HELP_STRING([--enable-debug], [OPTION CHANGE: use --enable-build-mode=debug])],
+              [AC_MSG_ERROR([--enable-debug is no longer supported, use --enable-build-mode=debug instead.])])
 
 AC_ARG_ENABLE([production],
-              [AS_HELP_STRING([--enable-production], [DEPRECATED: use --enable-build-mode=production])],
-              [AC_MSG_ERROR([--enable-production is deprecated, use --enable-build-mode=production instead.])])
+              [AS_HELP_STRING([--enable-production], [OPTION CHANGE: use --enable-build-mode=production])],
+              [AC_MSG_ERROR([--enable-production is no longer supported, use --enable-build-mode=production instead.])])
 
 
 ## ----------------------------------------------------------------------
diff --git a/examples/h5_attribute.c b/examples/h5_attribute.c
index 335f9c2..e3b5759 100644
--- a/examples/h5_attribute.c
+++ b/examples/h5_attribute.c
@@ -189,7 +189,7 @@ main (void)
    /*
     * Find string attribute by iterating through all attributes
     */
-   ret = H5Oget_info(dataset, &oinfo);
+   ret = H5Oget_info2(dataset, &oinfo, H5O_INFO_ALL);
    for(i = 0; i < (unsigned)oinfo.num_attrs; i++) {
       attr = H5Aopen_by_idx(dataset, ".", H5_INDEX_CRT_ORDER, H5_ITER_INC, (hsize_t)i, H5P_DEFAULT, H5P_DEFAULT);
       atype = H5Aget_type(attr);
diff --git a/fortran/src/H5Af.c b/fortran/src/H5Af.c
index 23dd936..31a18fc 100644
--- a/fortran/src/H5Af.c
+++ b/fortran/src/H5Af.c
@@ -143,7 +143,7 @@ h5aget_num_attrs_c (hid_t_f *obj_id, int_f *attr_num)
     /*
      * Call H5Oget_info function.
      */
-    if(H5Oget_info((hid_t)*obj_id, &oinfo) < 0)
+    if(H5Oget_info2((hid_t)*obj_id, &oinfo, H5O_INFO_NUM_ATTRS) < 0)
         HGOTO_DONE(FAIL);
 
     /* Set number of attributes */
diff --git a/fortran/src/H5Gf.c b/fortran/src/H5Gf.c
index b829b20..def67e1 100644
--- a/fortran/src/H5Gf.c
+++ b/fortran/src/H5Gf.c
@@ -200,7 +200,7 @@ h5gget_obj_info_idx_c(hid_t_f *loc_id, _fcd name, int_f *namelen, int_f *idx,
     /* Query the object's information */
     if(H5Lget_name_by_idx(gid, ".", H5_INDEX_NAME, H5_ITER_INC, c_idx, c_obj_name, c_obj_namelen, H5P_DEFAULT) < 0)
         goto DONE;
-    if(H5Oget_info_by_idx(gid, ".", H5_INDEX_NAME, H5_ITER_INC, c_idx, &oinfo, H5P_DEFAULT) < 0)
+    if(H5Oget_info_by_idx2(gid, ".", H5_INDEX_NAME, H5_ITER_INC, c_idx, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0)
         goto DONE;
 
 /* XXX: Switch from using H5Gget_objtype_by_idx() means that this routine won't
diff --git a/fortran/src/H5Of.c b/fortran/src/H5Of.c
index 7d065a5..45b7f09 100644
--- a/fortran/src/H5Of.c
+++ b/fortran/src/H5Of.c
@@ -248,9 +248,9 @@ h5ovisit_c(hid_t_f *group_id, int_f *index_type, int_f *order, H5O_iterate_t op,
   herr_t func_ret_value; /* H5Linterate return value */
 
   /*
-   * Call H5Ovisit
+   * Call H5Ovisit2
    */
-  func_ret_value = H5Ovisit( (hid_t)*group_id, (H5_index_t)*index_type, (H5_iter_order_t)*order, op, op_data);
+  func_ret_value = H5Ovisit2( (hid_t)*group_id, (H5_index_t)*index_type, (H5_iter_order_t)*order, op, op_data, H5O_INFO_ALL);
 
   ret_value = (int_f)func_ret_value;
 
@@ -330,8 +330,8 @@ h5oget_info_by_name_c (hid_t_f *loc_id, _fcd name, size_t_f *namelen, hid_t_f *l
   /*
    * Call H5Oinfo_by_name function.
    */
-  if(H5Oget_info_by_name((hid_t)*loc_id, c_name,
-			 &Oinfo, (hid_t)*lapl_id) < 0)
+  if(H5Oget_info_by_name2((hid_t)*loc_id, c_name,
+			 &Oinfo, H5O_INFO_ALL, (hid_t)*lapl_id) < 0)
     HGOTO_DONE(FAIL);
 
   ret_value = fill_h5o_info_t_f(Oinfo,object_info);
@@ -385,8 +385,8 @@ h5oget_info_by_idx_c (hid_t_f *loc_id, _fcd  group_name, size_t_f *namelen,
   /*
    * Call H5Oinfo_by_idx function.
    */
-  if(H5Oget_info_by_idx((hid_t)*loc_id, c_group_name, c_index_field, c_order, (hsize_t)*n,
-			 &Oinfo, (hid_t)*lapl_id) < 0)
+  if(H5Oget_info_by_idx2((hid_t)*loc_id, c_group_name, c_index_field, c_order, (hsize_t)*n,
+			 &Oinfo, H5O_INFO_ALL, (hid_t)*lapl_id) < 0)
     HGOTO_DONE(FAIL);
 
   ret_value = fill_h5o_info_t_f(Oinfo,object_info);
@@ -424,7 +424,7 @@ h5oget_info_c (hid_t_f *object_id, H5O_info_t_f *object_info)
   /*
    * Call H5Oinfo_by_name function.
    */
-  if(H5Oget_info((hid_t)*object_id, &Oinfo) < 0)
+  if(H5Oget_info2((hid_t)*object_id, &Oinfo, H5O_INFO_ALL) < 0)
     HGOTO_DONE(FAIL);
 
   ret_value = fill_h5o_info_t_f(Oinfo,object_info);
@@ -532,8 +532,8 @@ h5ovisit_by_name_c(hid_t_f *loc_id,  _fcd object_name, size_t_f *namelen, int_f
   /*
    * Call H5Ovisit
    */
-  func_ret_value = H5Ovisit_by_name( (hid_t)*loc_id, c_object_name, (H5_index_t)*index_type, (H5_iter_order_t)*order,
-				     op, op_data, (hid_t)*lapl_id);
+  func_ret_value = H5Ovisit_by_name2( (hid_t)*loc_id, c_object_name, (H5_index_t)*index_type, (H5_iter_order_t)*order,
+				     op, op_data, H5O_INFO_ALL, (hid_t)*lapl_id);
   ret_value = (int_f)func_ret_value;
 
  done:
diff --git a/hl/src/H5DO.c b/hl/src/H5DO.c
index 99cf2f7..057c43b 100644
--- a/hl/src/H5DO.c
+++ b/hl/src/H5DO.c
@@ -11,90 +11,37 @@
  * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
-#include <string.h>
-#include <stdlib.h>
-#include <assert.h>
-#include <stdio.h>
-
 /* High-level library internal header file */
 #include "H5HLprivate2.h"
 
 /* public LT prototypes			*/
 #include "H5DOpublic.h"
 
-
+#ifndef H5_NO_DEPRECATED_SYMBOLS
 
 /*-------------------------------------------------------------------------
- * Function:	H5DOwrite_chunk
+ * Function:    H5DOwrite_chunk
  *
- * Purpose:     Writes an entire chunk to the file directly.	
+ * Purpose:     Writes an entire chunk to the file directly.
  *
- * Return:	Non-negative on success/Negative on failure
+ *              The H5DOwrite_chunk() call was moved to H5Dwrite_chunk. This
+ *              simple wrapper remains so that people can still link to the
+ *              high-level library without changing their code.
  *
- * Programmer:	Raymond Lu
- *		        30 July 2012
+ * Return:      Non-negative on success/Negative on failure
  *
  *-------------------------------------------------------------------------
  */
 herr_t
-H5DOwrite_chunk(hid_t dset_id, hid_t dxpl_id, uint32_t filters, const hsize_t *offset, 
+H5DOwrite_chunk(hid_t dset_id, hid_t dxpl_id, uint32_t filters, const hsize_t *offset,
          size_t data_size, const void *buf)
 {
-    hbool_t created_dxpl = FALSE;       /* Whether we created a DXPL */
-    hbool_t do_direct_write = TRUE;     /* Flag for direct writes */
-    uint32_t data_size_32;              /* Chunk data size (limited to 32-bits currently) */
-    herr_t  ret_value = FAIL;           /* Return value */
-    
-    /* Check arguments */
-    if(dset_id < 0)
-        goto done;
-    if(!buf)
-        goto done;
-    if(!offset)
-        goto done;
-    if(!data_size)
-        goto done;
-    data_size_32 = (uint32_t)data_size;
-    if(data_size != (size_t)data_size_32)
-        goto done;
-
-    /* If the user passed in a default DXPL, create one to pass to H5Dwrite() */
-    if(H5P_DEFAULT == dxpl_id) {
-        if((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0)
-            goto done;
-        created_dxpl = TRUE;
-    } /* end if */
-
-    /* Set direct write parameters */
-    if(H5Pset(dxpl_id, H5D_XFER_DIRECT_CHUNK_WRITE_FLAG_NAME, &do_direct_write) < 0)
-        goto done;
-    if(H5Pset(dxpl_id, H5D_XFER_DIRECT_CHUNK_WRITE_FILTERS_NAME, &filters) < 0)
-        goto done;
-    if(H5Pset(dxpl_id, H5D_XFER_DIRECT_CHUNK_WRITE_OFFSET_NAME, &offset) < 0)
-        goto done;
-    if(H5Pset(dxpl_id, H5D_XFER_DIRECT_CHUNK_WRITE_DATASIZE_NAME, &data_size_32) < 0)
-        goto done;
+    /* Call underlying H5D function */
+    if (H5Dwrite_chunk(dset_id, dxpl_id, filters, offset, data_size, buf) < 0)
+        return FAIL;
+    else
+        return SUCCEED;
 
-    /* Write chunk */
-    if(H5Dwrite(dset_id, 0, H5S_ALL, H5S_ALL, dxpl_id, buf) < 0)
-        goto done;
-
-    /* Indicate success */
-    ret_value = SUCCEED;
-
-done:
-    if(created_dxpl) {
-        if(H5Pclose(dxpl_id) < 0)
-            ret_value = FAIL;
-    } /* end if */
-    else {
-        /* Reset the direct write flag on user DXPL */
-        do_direct_write = FALSE;
-        if(H5Pset(dxpl_id, H5D_XFER_DIRECT_CHUNK_WRITE_FLAG_NAME, &do_direct_write) < 0)
-            ret_value = FAIL;
-    }
-
-    return ret_value;
 } /* end H5DOwrite_chunk() */
 
 
@@ -103,10 +50,11 @@ done:
  *
  * Purpose:     Reads an entire chunk from the file directly.
  *
- * Return:      Non-negative on success/Negative on failure
+ *              The H5DOread_chunk() call was moved to H5Dread_chunk. This
+ *              simple wrapper remains so that people can still link to the
+ *              high-level library without changing their code.
  *
- * Programmer:  Matthew Strong (GE Healthcare)
- *              14 February 2016
+ * Return:      Non-negative on success/Negative on failure
  *
  *---------------------------------------------------------------------------
  */
@@ -114,71 +62,29 @@ herr_t
 H5DOread_chunk(hid_t dset_id, hid_t dxpl_id, const hsize_t *offset, uint32_t *filters,
          void *buf)
 {
-    hbool_t created_dxpl = FALSE;       /* Whether we created a DXPL */
-    hbool_t do_direct_read = TRUE;     /* Flag for direct writes */
-    herr_t  ret_value = FAIL;           /* Return value */
-
-    /* Check arguments */
-    if(dset_id < 0)
-        goto done;
-    if(!buf)
-        goto done;
-    if(!offset)
-        goto done;
-    if(!filters)
-        goto done;
+    /* Call underlying H5D function */
+    if (H5Dread_chunk(dset_id, dxpl_id, offset, filters, buf) < 0)
+        return FAIL;
+    else
+        return SUCCEED;
+ } /* end H5DOread_chunk() */
 
-    /* If the user passed in a default DXPL, create one to pass to H5Dwrite() */
-    if(H5P_DEFAULT == dxpl_id) {
-        if((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0)
-            goto done;
-        created_dxpl = TRUE;
-    } /* end if */
-
-    /* Set direct write parameters */
-    if(H5Pset(dxpl_id, H5D_XFER_DIRECT_CHUNK_READ_FLAG_NAME, &do_direct_read) < 0)
-        goto done;
-    if(H5Pset(dxpl_id, H5D_XFER_DIRECT_CHUNK_READ_OFFSET_NAME, &offset) < 0)
-        goto done;
-
-    /* Read chunk */
-    if(H5Dread(dset_id, 0, H5S_ALL, H5S_ALL, dxpl_id, buf) < 0)
-        goto done;
-    /* Get the filter mask */
-    if(H5Pget(dxpl_id, H5D_XFER_DIRECT_CHUNK_READ_FILTERS_NAME, filters) < 0)
-        goto done;
-
-    /* Indicate success */
-    ret_value = SUCCEED;
-
-done:
-    if(created_dxpl) {
-        if(H5Pclose(dxpl_id) < 0)
-            ret_value = FAIL;
-    } /* end if */
-    else {
-        /* Reset the direct read flag on user DXPL */
-        do_direct_read = FALSE;
-        if(H5Pset(dxpl_id, H5D_XFER_DIRECT_CHUNK_READ_FLAG_NAME, &do_direct_read) < 0)
-            ret_value = FAIL;
-    }
-
-    return ret_value;
-} /* end H5DOread_chunk() */
+#endif /* H5_NO_DEPRECATED_SYMBOLS */
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5DOappend()
+ * Function:    H5DOappend()
  *
  * Purpose:     To append elements to a dataset.
- *		axis: the dataset dimension (zero-based) for the append
- *		extension: the # of elements to append for the axis-th dimension
- *		memtype: the datatype
- *		buf: buffer with data for the append
  *
- * Return:	Non-negative on success/Negative on failure
+ *      axis:       the dataset dimension (zero-based) for the append
+ *      extension:  the # of elements to append for the axis-th dimension
+ *      memtype:    the datatype
+ *      buf:        buffer with data for the append
  *
- * Programmer:	Vailin Choi; Jan 2014
+ * Return:      Non-negative on success/Negative on failure
+ *
+ * Programmer:  Vailin Choi; Jan 2014
  *
  * Note:
  * 	This routine is copied from the fast forward feature branch: features/hdf5_ff
@@ -227,7 +133,7 @@ H5DOappend(hid_t dset_id, hid_t dxpl_id, unsigned axis, size_t extension,
 
     /* check arguments */
     if(H5I_DATASET != H5Iget_type(dset_id))
-	goto done;
+        goto done;
 
     /* If the user passed in a default DXPL, create one to pass to H5Dwrite() */
     if(H5P_DEFAULT == dxpl_id) {
@@ -236,39 +142,40 @@ H5DOappend(hid_t dset_id, hid_t dxpl_id, unsigned axis, size_t extension,
         created_dxpl = TRUE;
     } /* end if */
     else if(TRUE != H5Pisa_class(dxpl_id, H5P_DATASET_XFER))
-	goto done;
+        goto done;
 
     /* Get the dataspace of the dataset */
     if(FAIL == (space_id = H5Dget_space(dset_id)))
-	goto done;
+        goto done;
 
     /* Get the rank of this dataspace */
     if((sndims = H5Sget_simple_extent_ndims(space_id)) < 0)
-	goto done;
+        goto done;
     ndims = (unsigned)sndims;
 
     /* Verify correct axis */
     if(axis >= ndims)
-	goto done;
+        goto done;
 
     /* Get the dimensions sizes of the dataspace */
     if(H5Sget_simple_extent_dims(space_id, size, NULL) < 0)
-	goto done;
+        goto done;
 
     /* Adjust the dimension size of the requested dimension, 
-       but first record the old dimension size */
+     * but first record the old dimension size
+     */
     old_size = size[axis];
     size[axis] += extension;
     if(size[axis] < old_size)
-	goto done;
+        goto done;
 
     /* Set the extent of the dataset to the new dimension */
     if(H5Dset_extent(dset_id, size) < 0)
-	goto done;
+        goto done;
 
     /* Get the new dataspace of the dataset */
     if(FAIL == (new_space_id = H5Dget_space(dset_id)))
-	goto done;
+        goto done;
 
     /* Select a hyperslab corresponding to the append operation */
     for(u = 0 ; u < ndims ; u++) {
@@ -282,51 +189,51 @@ H5DOappend(hid_t dset_id, hid_t dxpl_id, unsigned axis, size_t extension,
         } /* end if */
     } /* end for */
     if(FAIL == H5Sselect_hyperslab(new_space_id, H5S_SELECT_SET, start, stride, count, block))
-	goto done;
+        goto done;
 
     /* The # of elemnts in the new extended dataspace */
     if((snelmts = H5Sget_select_npoints(new_space_id)) < 0)
-	goto done;
+        goto done;
     nelmts = (hsize_t)snelmts;
 
     /* create a memory space */
     if(FAIL == (mem_space_id = H5Screate_simple(1, &nelmts, NULL)))
-	goto done;
+        goto done;
 
     /* Write the data */
     if(H5Dwrite(dset_id, memtype, mem_space_id, new_space_id, dxpl_id, buf) < 0)
-	goto done;
+        goto done;
 
     /* Obtain the dataset's access property list */
     if((dapl = H5Dget_access_plist(dset_id)) < 0)
-	goto done;
+        goto done;
 
     /* Allocate the boundary array */
     boundary = (hsize_t *)HDmalloc(ndims * sizeof(hsize_t));
 
     /* Retrieve the append flush property */
     if(H5Pget_append_flush(dapl, ndims, boundary, &append_cb, &udata) < 0)
-	goto done;
+        goto done;
 
     /* No boundary for this axis */
     if(boundary[axis] != 0) {
 
-	/* Determine whether a boundary is hit or not */
-	for(k = start[axis]; k < size[axis]; k++)
-	    if(!((k + 1) % boundary[axis])) {
-		hit = TRUE;
-		break;
-	    }
-
-	if(hit) { /* Hit the boundary */
-	    /* Invoke callback if there is one */
-	    if(append_cb && append_cb(dset_id, size, udata) < 0)
-		goto done;
-
-	    /* Do a dataset flush */
-	    if(H5Dflush(dset_id) < 0)
-		goto done;
-	} /* end if */
+        /* Determine whether a boundary is hit or not */
+        for(k = start[axis]; k < size[axis]; k++)
+            if(!((k + 1) % boundary[axis])) {
+                hit = TRUE;
+                break;
+            }
+
+        if(hit) { /* Hit the boundary */
+            /* Invoke callback if there is one */
+            if(append_cb && append_cb(dset_id, size, udata) < 0)
+                goto done;
+
+	        /* Do a dataset flush */
+            if(H5Dflush(dset_id) < 0)
+                goto done;
+        } /* end if */
     } /* end if */
 
     /* Indicate success */
@@ -341,22 +248,22 @@ done:
 
     /* Close old dataspace */
     if(space_id != FAIL && H5Sclose(space_id) < 0)
-	ret_value = FAIL;
+        ret_value = FAIL;
 
     /* Close new dataspace */
     if(new_space_id != FAIL && H5Sclose(new_space_id) < 0)
-	ret_value = FAIL;
+        ret_value = FAIL;
 
     /* Close memory dataspace */
     if(mem_space_id != FAIL && H5Sclose(mem_space_id) < 0)
-	ret_value = FAIL;
+        ret_value = FAIL;
 
     /* Close the dataset access property list */
     if(dapl != FAIL && H5Pclose(dapl) < 0)
-	ret_value = FAIL;
+        ret_value = FAIL;
 
     if(boundary)
-	HDfree(boundary);
+        HDfree(boundary);
 
     return ret_value;
 } /* H5DOappend() */
diff --git a/hl/src/H5DOpublic.h b/hl/src/H5DOpublic.h
index d5c8de4..e09ebca 100644
--- a/hl/src/H5DOpublic.h
+++ b/hl/src/H5DOpublic.h
@@ -25,18 +25,23 @@ extern "C" {
  *-------------------------------------------------------------------------
  */
 
-H5_HLDLL herr_t H5DOwrite_chunk(hid_t dset_id, hid_t dxpl_id, uint32_t filters, 
-    const hsize_t *offset, size_t data_size, const void *buf);
-
-H5_HLDLL herr_t H5DOread_chunk(hid_t dset_id, /*in*/
-            hid_t dxpl_id,         /*in*/
-            const hsize_t *offset, /*in*/
-            uint32_t *filters,     /*out*/
-            void *buf);            /*out*/
-
 H5_HLDLL herr_t H5DOappend(hid_t dset_id, hid_t dxpl_id, unsigned axis,
     size_t extension, hid_t memtype, const void *buf);
 
+/* Symbols defined for compatibility with previous versions of the HDF5 API.
+ *
+ * Use of these symbols is deprecated.
+ */
+#ifndef H5_NO_DEPRECATED_SYMBOLS
+
+/* Compatibility wrappers for functionality moved to H5D */
+H5_HLDLL herr_t H5DOwrite_chunk(hid_t dset_id, hid_t dxpl_id, uint32_t filters,
+    const hsize_t *offset, size_t data_size, const void *buf);
+H5_HLDLL herr_t H5DOread_chunk(hid_t dset_id, hid_t dxpl_id, const hsize_t *offset,
+    uint32_t *filters /*out*/, void *buf /*out*/);
+
+#endif /* H5_NO_DEPRECATED_SYMBOLS */
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/hl/src/H5DS.c b/hl/src/H5DS.c
index 527c92b..d86cc98 100644
--- a/hl/src/H5DS.c
+++ b/hl/src/H5DS.c
@@ -160,11 +160,11 @@ herr_t H5DSattach_scale(hid_t did,
         return FAIL;
 
     /* get info for the dataset in the parameter list */
-    if(H5Oget_info(did, &oi1) < 0)
+    if(H5Oget_info2(did, &oi1, H5O_INFO_BASIC) < 0)
         return FAIL;
 
     /* get info for the scale in the parameter list */
-    if(H5Oget_info(dsid, &oi2) < 0)
+    if(H5Oget_info2(dsid, &oi2, H5O_INFO_BASIC) < 0)
         return FAIL;
 
     /* same object, not valid */
@@ -324,11 +324,11 @@ herr_t H5DSattach_scale(hid_t did,
                 goto out;
 
             /* get info for DS in the parameter list */
-            if(H5Oget_info(dsid, &oi1) < 0)
+            if(H5Oget_info2(dsid, &oi1, H5O_INFO_BASIC) < 0)
                 goto out;
 
             /* get info for this DS */
-            if(H5Oget_info(dsid_j, &oi2) < 0)
+            if(H5Oget_info2(dsid_j, &oi2, H5O_INFO_BASIC) < 0)
                 goto out;
 
             /* same object, so this DS scale is already in this DIM IDX */
@@ -609,11 +609,11 @@ herr_t H5DSdetach_scale(hid_t did,
         return FAIL;
 
     /* get info for the dataset in the parameter list */
-    if(H5Oget_info(did, &did_oi) < 0)
+    if(H5Oget_info2(did, &did_oi, H5O_INFO_BASIC) < 0)
         return FAIL;
 
     /* get info for the scale in the parameter list */
-    if(H5Oget_info(dsid, &dsid_oi) < 0)
+    if(H5Oget_info2(dsid, &dsid_oi, H5O_INFO_BASIC) < 0)
         return FAIL;
 
     /* same object, not valid */
@@ -696,7 +696,7 @@ herr_t H5DSdetach_scale(hid_t did,
                 goto out;
 
             /* get info for this DS */
-            if(H5Oget_info(dsid_j, &tmp_oi) < 0)
+            if(H5Oget_info2(dsid_j, &tmp_oi, H5O_INFO_BASIC) < 0)
                 goto out;
 
             /* Close the dereferenced dataset */
@@ -806,7 +806,7 @@ herr_t H5DSdetach_scale(hid_t did,
                 goto out;
 
             /* get info for this dataset */
-            if(H5Oget_info(did_i, &tmp_oi) < 0)
+            if(H5Oget_info2(did_i, &tmp_oi, H5O_INFO_BASIC) < 0)
                 goto out;
 
             /* close the dereferenced dataset */
@@ -973,11 +973,11 @@ htri_t H5DSis_attached(hid_t did,
         return FAIL;
 
     /* get info for the dataset in the parameter list */
-    if(H5Oget_info(did, &oi1) < 0)
+    if(H5Oget_info2(did, &oi1, H5O_INFO_BASIC) < 0)
         return FAIL;
 
     /* get info for the scale in the parameter list */
-    if(H5Oget_info(dsid, &oi2) < 0)
+    if(H5Oget_info2(dsid, &oi2, H5O_INFO_BASIC) < 0)
         return FAIL;
 
     /* same object, not valid */
@@ -1054,11 +1054,11 @@ htri_t H5DSis_attached(hid_t did,
                 goto out;
 
             /* get info for DS in the parameter list */
-            if(H5Oget_info(dsid, &oi1) < 0)
+            if(H5Oget_info2(dsid, &oi1, H5O_INFO_BASIC) < 0)
                 goto out;
 
             /* get info for this DS */
-            if(H5Oget_info(dsid_j, &oi2) < 0)
+            if(H5Oget_info2(dsid_j, &oi2, H5O_INFO_BASIC) < 0)
                 goto out;
 
             /* same object */
@@ -1144,11 +1144,11 @@ htri_t H5DSis_attached(hid_t did,
                     goto out;
 
                 /* get info for dataset in the parameter list */
-                if(H5Oget_info(did, &oi3) < 0)
+                if(H5Oget_info2(did, &oi3, H5O_INFO_BASIC) < 0)
                     goto out;
 
                 /* get info for this dataset */
-                if(H5Oget_info(did_i, &oi4) < 0)
+                if(H5Oget_info2(did_i, &oi4, H5O_INFO_BASIC) < 0)
                     goto out;
 
                 /* same object */
diff --git a/hl/test/CMakeLists.txt b/hl/test/CMakeLists.txt
index 44f286b..238b5e1 100644
--- a/hl/test/CMakeLists.txt
+++ b/hl/test/CMakeLists.txt
@@ -46,9 +46,9 @@ HL_ADD_EXE (test_image)
 HL_ADD_EXE (test_file_image)
 HL_ADD_EXE (test_table)
 HL_ADD_EXE (test_ds)
-HL_ADD_EXE (test_dset_opt)
 HL_ADD_EXE (test_ld)
 HL_ADD_EXE (test_dset_append)
+HL_ADD_EXE (test_h5do_compat)
 
 # test_packet has two source files
 add_executable (hl_test_packet test_packet.c test_packet_vlen.c)
diff --git a/hl/test/CMakeTests.cmake b/hl/test/CMakeTests.cmake
index e5eb58e..4e945bc 100644
--- a/hl/test/CMakeTests.cmake
+++ b/hl/test/CMakeTests.cmake
@@ -79,6 +79,7 @@ add_test (
         file_img1.h5
         file_img2.h5
         test_append.h5
+        h5do_compat.h5
         test_detach.h5
         test_ds1.h5
         test_ds2.h5
@@ -90,7 +91,6 @@ add_test (
         test_ds8.h5
         test_ds9.h5
         test_ds10.h5
-        test_dectris.h5
         test_image1.h5
         test_image2.h5
         test_image3.h5
@@ -115,7 +115,7 @@ HL_add_test (test_file_image)
 HL_add_test (test_table)
 HL_add_test (test_ds)
 HL_add_test (test_packet)
-HL_add_test (test_dset_opt)
 HL_add_test (test_ld)
 HL_add_test (test_dset_append)
+HL_add_test (test_h5do_compat)
 
diff --git a/hl/test/Makefile.am b/hl/test/Makefile.am
index e16550f..2e63438 100644
--- a/hl/test/Makefile.am
+++ b/hl/test/Makefile.am
@@ -26,8 +26,8 @@ LDADD=$(LIBH5_HL) $(LIBH5TEST) $(LIBHDF5)
 
 # Test programs.  These are our main targets.  They should be listed in the
 # order to be executed, generally most specific tests to least specific tests.
-TEST_PROG=test_lite test_image test_file_image test_table test_ds test_packet test_dset_opt \
-	test_ld test_dset_append
+TEST_PROG=test_lite test_image test_file_image test_table test_ds test_packet \
+	test_ld test_dset_append test_h5do_compat
 check_PROGRAMS=$(TEST_PROG)
 
 # These programs generate test files for the tests.  They don't need to be
@@ -45,8 +45,8 @@ endif
 CHECK_CLEANFILES+=combine_tables[1-2].h5 test_ds[1-9].h5 test_ds10.h5 \
 	test_image[1-3].h5 file_img[1-2].h5 test_lite[1-4].h5 test_table.h5 \
 	test_packet_table.h5 test_packet_compress.h5 test_detach.h5 \
-	test_packet_table_vlen.h5 testfl_packet_table_vlen.h5		\
-	test_dectris.h5 test_append.h5
+	test_packet_table_vlen.h5 testfl_packet_table_vlen.h5 test_append.h5 \
+    h5do_compat.h5
 
 # Sources for test_packet executable
 test_packet_SOURCES=test_packet.c test_packet_vlen.c
diff --git a/hl/test/test_h5do_compat.c b/hl/test/test_h5do_compat.c
new file mode 100644
index 0000000..4df5eef
--- /dev/null
+++ b/hl/test/test_h5do_compat.c
@@ -0,0 +1,286 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * Copyright by the Board of Trustees of the University of Illinois.         *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the COPYING file, which can be found at the root of the source code       *
+ * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.  *
+ * If you do not have access to either file, you may request a copy from     *
+ * help@hdfgroup.org.                                                        *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+#include "h5hltest.h"
+#include "H5DOpublic.h"
+
+/* This test is a minimal test to ensure that the H5DO compatibility wrappers
+ * work correctly.
+ */
+
+#ifndef H5_NO_DEPRECATED_SYMBOLS
+
+#define FILE_NAME       "h5do_compat.h5"
+#define DATASET_NAME    "direct_chunk_io"
+
+#define NX              8
+#define CHUNK_NX        4
+
+
+/*-------------------------------------------------------------------------
+ * Function:	test_direct_chunk_write
+ *
+ * Purpose:	    Test the basic functionality of H5DOwrite_chunk
+ *
+ * Return:	    Success:    An identifer for the dataset used in the tests
+ *		        Failure:	H5I_INVALID_HID
+ *
+ *-------------------------------------------------------------------------
+ */
+static hid_t
+create_dataset(hid_t fid)
+{
+    hid_t   did             = H5I_INVALID_HID;
+    hid_t   sid             = H5I_INVALID_HID;
+    hid_t   dcpl_id         = H5I_INVALID_HID;
+    hsize_t dims[1]         = {NX};
+    hsize_t maxdims[1]      = {H5S_UNLIMITED};
+    hsize_t chunk_dims[1]   = {CHUNK_NX};
+    int     data[NX];
+    int     i;
+
+    /* Create a dataspace for the new dataset */
+    if ((sid = H5Screate_simple(1, dims, maxdims)) < 0)
+        goto error;
+
+    /* Set up dataset creation parameters */
+    if ((dcpl_id = H5Pcreate(H5P_DATASET_CREATE)) < 0)
+        goto error;
+    if (H5Pset_chunk(dcpl_id, 1, chunk_dims) < 0)
+        goto error;
+
+    /* Create a new dataset */
+    if ((did = H5Dcreate2(fid, DATASET_NAME, H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl_id, H5P_DEFAULT)) < 0)
+        goto error;
+
+    /* Initialize the data */
+    for (i = 0; i < NX; i++)
+	    data[i] = i;
+
+    /* Write the initialized data */
+    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, data) < 0)
+        goto error;
+
+    /* Close everything */
+    if (H5Sclose(sid) < 0)
+        goto error;
+    if (H5Pclose(dcpl_id) < 0)
+        goto error;
+
+    return did;
+
+ error:
+    H5E_BEGIN_TRY {
+        H5Dclose(did);
+        H5Sclose(sid);
+        H5Pclose(dcpl_id);
+    } H5E_END_TRY;
+
+    return H5I_INVALID_HID;
+
+} /* end create_dataset() */
+
+
+
+/*-------------------------------------------------------------------------
+ * Function:	test_direct_chunk_write
+ *
+ * Purpose:	    Test the basic functionality of H5DOwrite_chunk
+ *
+ * Return:	    Success:    0
+ *		        Failure:    1
+ *
+ *-------------------------------------------------------------------------
+ */
+static int
+test_direct_chunk_write(hid_t did)
+{
+    unsigned    filter_mask = 0;
+    int         chunk_data[CHUNK_NX];
+    hsize_t     offset[1];
+    size_t      data_size;
+    int         i;
+
+    TESTING("H5DOwrite_chunk wrapper");
+
+    /* Set the size of the chunk data */
+    data_size = CHUNK_NX * sizeof(int);
+
+    /* Initialize the chunk data */
+    for (i = 0; i < CHUNK_NX; i++)
+        chunk_data[i] = (i * 10) + i;
+
+    /* Write the direct chunk data repeatedly to cover all the chunks in the 
+     * dataset, using the direct writing function.
+     */ 
+    offset[0] = 0;
+    for (i = 0; i < NX/CHUNK_NX; i++) {
+        if (H5DOwrite_chunk(did, H5P_DEFAULT, filter_mask, offset, data_size, chunk_data) < 0)
+            TEST_ERROR
+        offset[0] += CHUNK_NX;
+    }
+
+    PASSED();
+    return 0;
+
+error:
+    H5_FAILED();
+    return 1;
+} /* test_direct_chunk_write() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:	test_direct_chunk_read
+ *
+ * Purpose:	    Test the basic functionality of H5DOread_chunk
+ *
+ * Return:	    Success:    0
+ *		        Failure:    1
+ *
+ *-------------------------------------------------------------------------
+ */
+static int
+test_direct_chunk_read(hid_t did)
+{
+    hid_t       mem_sid         = H5I_INVALID_HID;
+    hid_t       file_sid        = H5I_INVALID_HID;
+    hsize_t     dims[1]         = {NX};
+    hsize_t     chunk_dims[1]   = {CHUNK_NX};
+
+    unsigned    filter_mask;
+    int         chunk_data[CHUNK_NX];   /* Chunk read with H5DOread_chunk */
+    int         check[CHUNK_NX];        /* Chunk read with H5Dread */
+    hsize_t     offset[1];
+
+    hsize_t     start[1];  /* Start of hyperslab */
+    hsize_t     stride[1]; /* Stride of hyperslab */
+    hsize_t     count[1];  /* Block count */
+    hsize_t     block[1];  /* Block sizes */
+
+    int         i,j;
+
+    TESTING("H5DOread_chunk wrapper");
+
+    /* Create dataspaces for reading */
+    if ((mem_sid = H5Screate_simple(1, chunk_dims, NULL)) < 0)
+        TEST_ERROR
+    if ((file_sid = H5Screate_simple(1, dims, NULL)) < 0)
+        TEST_ERROR
+
+    /* For each chunk in the dataset, compare the result of H5Dread and H5DOread_chunk. */
+    for (i = 0; i < NX/CHUNK_NX; i++) {
+
+        /* Select hyperslab for one chunk in the file */
+        start[0]  = (hsize_t)i * CHUNK_NX;
+        stride[0] = 1;
+        count[0]  = 1;
+        block[0]  = CHUNK_NX;
+
+        /* Hyperslab selection equals single chunk */
+        if (H5Sselect_hyperslab(file_sid, H5S_SELECT_SET, start, stride, count, block) < 0)
+            TEST_ERROR
+
+        /* Read the chunk back */
+        if (H5Dread(did, H5T_NATIVE_INT, mem_sid, file_sid, H5P_DEFAULT, check) < 0)
+            TEST_ERROR
+
+        /* Read the raw chunk back */
+        HDmemset(chunk_data, 0, CHUNK_NX * sizeof(int));
+        filter_mask = UINT_MAX;
+        offset[0] = (hsize_t)i * CHUNK_NX;
+        if (H5DOread_chunk(did, H5P_DEFAULT, offset, &filter_mask, chunk_data) < 0)
+            TEST_ERROR
+
+        /* Check filter mask return value */
+        if (filter_mask != 0)
+            TEST_ERROR
+
+        /* Check that the values are correct */
+        for (j = 0; j < CHUNK_NX; j++)
+            if (chunk_data[i] != check[i])
+                TEST_ERROR
+    }
+
+    /* Close */
+    if (H5Sclose(mem_sid) < 0)
+        TEST_ERROR
+    if (H5Sclose(file_sid) < 0)
+        TEST_ERROR
+
+    PASSED();
+    return 0;
+
+error:
+    H5E_BEGIN_TRY {
+        H5Sclose(mem_sid);
+        H5Sclose(file_sid);
+    } H5E_END_TRY;
+
+    H5_FAILED();
+    return 1;
+} /* test_direct_chunk_read() */
+
+#endif /* H5_NO_DEPRECATED_SYMBOLS */
+
+
+/*-------------------------------------------------------------------------
+ * Function:	main
+ *
+ * Purpose:	    Test direct chunk write function H5DOwrite_chunk and
+ *              chunk direct read function H5DOread_chunk
+ *
+ * Return:	    Success:    0
+ *		        Failure:    1
+ *
+ *-------------------------------------------------------------------------
+ */
+int main( void )
+{
+#ifdef H5_NO_DEPRECATED_SYMBOLS
+
+    HDputs("Direct chunk read/write wrapper tests SKIPPED.");
+    HDputs("(Backward compatibility not configured)");
+    return EXIT_SUCCESS;
+
+#else
+
+    hid_t   fid         = H5I_INVALID_HID;
+    hid_t   did         = H5I_INVALID_HID;
+    int     nerrors     = 0;
+
+    if ((fid = H5Fcreate(FILE_NAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+        goto error;
+
+    if ((did = create_dataset(fid)) < 0)
+        goto error;
+
+    nerrors += test_direct_chunk_write(did);
+    nerrors += test_direct_chunk_read(did);
+
+    if (H5Dclose(did) < 0)
+        goto error;
+    if (H5Fclose(fid) < 0)
+        goto error;
+
+    /* check for errors */
+    if (nerrors)
+        goto error;
+
+    HDputs("All direct chunk read/write wrapper tests passed.");
+    return EXIT_SUCCESS;
+
+error:
+    HDputs("*** TESTS FAILED ***");
+    return EXIT_FAILURE;
+#endif /* H5_NO_DEPRECATED_SYMBOLS */
+} /* end main() */
diff --git a/java/src/hdf/hdf5lib/H5.java b/java/src/hdf/hdf5lib/H5.java
index a37ddf8..72b136c 100644
--- a/java/src/hdf/hdf5lib/H5.java
+++ b/java/src/hdf/hdf5lib/H5.java
@@ -4287,7 +4287,27 @@ public class H5 implements java.io.Serializable {
      * @exception NullPointerException
      *                - name is null.
      **/
-    public synchronized static native H5O_info_t H5Oget_info(long loc_id) throws HDF5LibraryException,
+    public static H5O_info_t H5Oget_info(long loc_id) throws HDF5LibraryException,
+            NullPointerException {
+        return H5Oget_info(loc_id, HDF5Constants.H5O_INFO_ALL);
+    }
+
+    /**
+     * H5Oget_info retrieves the metadata for an object specified by an identifier.
+     *
+     * @param loc_id
+     *            IN: Identifier for target object
+     * @param fields
+     *            IN: Object fields to select
+     *
+     * @return object information
+     *
+     * @exception HDF5LibraryException
+     *                - Error from the HDF-5 Library.
+     * @exception NullPointerException
+     *                - name is null.
+     **/
+    public synchronized static native H5O_info_t H5Oget_info(long loc_id, int fields) throws HDF5LibraryException,
             NullPointerException;
 
     /**
@@ -4314,8 +4334,62 @@ public class H5 implements java.io.Serializable {
      * @exception NullPointerException
      *                - name is null.
      **/
+    public static H5O_info_t H5Oget_info_by_idx(long loc_id, String group_name, int idx_type,
+            int order, long n, long lapl_id) throws HDF5LibraryException, NullPointerException {
+        return H5Oget_info_by_idx(loc_id, group_name, idx_type, order, n, HDF5Constants.H5O_INFO_ALL, lapl_id);
+    }
+
+    /**
+     * H5Oget_info_by_idx retrieves the metadata for an object, identifying the object by an index position.
+     *
+     * @param loc_id
+     *            IN: File or group identifier
+     * @param group_name
+     *            IN: Name of group, relative to loc_id, in which object is located
+     * @param idx_type
+     *            IN: Type of index by which objects are ordered
+     * @param order
+     *            IN: Order of iteration within index
+     * @param n
+     *            IN: Object to open
+     * @param fields
+     *            IN: Object fields to select
+     * @param lapl_id
+     *            IN: Access property list identifier for the link pointing to the object (Not currently used; pass as
+     *            H5P_DEFAULT.)
+     *
+     * @return object information
+     *
+     * @exception HDF5LibraryException
+     *                - Error from the HDF-5 Library.
+     * @exception NullPointerException
+     *                - name is null.
+     **/
     public synchronized static native H5O_info_t H5Oget_info_by_idx(long loc_id, String group_name, int idx_type,
-            int order, long n, long lapl_id) throws HDF5LibraryException, NullPointerException;
+            int order, long n, int fields, long lapl_id) throws HDF5LibraryException, NullPointerException;
+
+    /**
+     * H5Oget_info_by_name retrieves the metadata for an object, identifying the object by location and relative name.
+     *
+     * @param loc_id
+     *            IN: File or group identifier specifying location of group in which object is located
+     * @param name
+     *            IN: Relative name of group
+     * @param lapl_id
+     *            IN: Access property list identifier for the link pointing to the object (Not currently used; pass as
+     *            H5P_DEFAULT.)
+     *
+     * @return object information
+     *
+     * @exception HDF5LibraryException
+     *                - Error from the HDF-5 Library.
+     * @exception NullPointerException
+     *                - name is null.
+     **/
+    public static H5O_info_t H5Oget_info_by_name(long loc_id, String name, long lapl_id)
+            throws HDF5LibraryException, NullPointerException {
+        return H5Oget_info_by_name(loc_id, name, HDF5Constants.H5O_INFO_ALL, lapl_id);
+    }
 
     /**
      * H5Oget_info_by_name retrieves the metadata for an object, identifying the object by location and relative name.
@@ -4324,6 +4398,8 @@ public class H5 implements java.io.Serializable {
      *            IN: File or group identifier specifying location of group in which object is located
      * @param name
      *            IN: Relative name of group
+     * @param fields
+     *            IN: Object fields to select
      * @param lapl_id
      *            IN: Access property list identifier for the link pointing to the object (Not currently used; pass as
      *            H5P_DEFAULT.)
@@ -4335,7 +4411,7 @@ public class H5 implements java.io.Serializable {
      * @exception NullPointerException
      *                - name is null.
      **/
-    public synchronized static native H5O_info_t H5Oget_info_by_name(long loc_id, String name, long lapl_id)
+    public synchronized static native H5O_info_t H5Oget_info_by_name(long loc_id, String name, int fields, long lapl_id)
             throws HDF5LibraryException, NullPointerException;
 
     /**
@@ -4412,8 +4488,68 @@ public class H5 implements java.io.Serializable {
      * @exception NullPointerException
      *                - name is null.
      **/
+    public static int H5Ovisit(long obj_id, int idx_type, int order, H5O_iterate_cb op, H5O_iterate_t op_data)
+            throws HDF5LibraryException, NullPointerException {
+        return H5Ovisit(obj_id, idx_type, order, op, op_data, HDF5Constants.H5O_INFO_ALL);
+    }
+
+    /**
+     * H5Ovisit recursively visits all objects accessible from a specified object.
+     *
+     * @param obj_id
+     *            IN: Identifier of the object at which the recursive iteration begins.
+     * @param idx_type
+     *            IN: Type of index
+     * @param order
+     *            IN: Order of iteration within index
+     * @param op
+     *            IN: Callback function passing data regarding the object to the calling application
+     * @param op_data
+     *            IN: User-defined pointer to data required by the application for its processing of the object
+     * @param fields
+     *            IN: Object fields to select
+     *
+     * @return returns the return value of the first operator that returns a positive value, or zero if all members were
+     *         processed with no operator returning non-zero.
+     *
+     * @exception HDF5LibraryException
+     *                - Error from the HDF-5 Library.
+     * @exception NullPointerException
+     *                - name is null.
+     **/
     public synchronized static native int H5Ovisit(long obj_id, int idx_type, int order, H5O_iterate_cb op,
-            H5O_iterate_t op_data) throws HDF5LibraryException, NullPointerException;
+            H5O_iterate_t op_data, int fields) throws HDF5LibraryException, NullPointerException;
+
+    /**
+     * H5Ovisit_by_name recursively visits all objects starting from a specified object.
+     *
+     * @param loc_id
+     *            IN: File or group identifier
+     * @param obj_name
+     *            IN: Relative path to the object
+     * @param idx_type
+     *            IN: Type of index
+     * @param order
+     *            IN: Order of iteration within index
+     * @param op
+     *            IN: Callback function passing data regarding the object to the calling application
+     * @param op_data
+     *            IN: User-defined pointer to data required by the application for its processing of the object
+     * @param lapl_id
+     *            IN: Link access property list identifier
+     *
+     * @return returns the return value of the first operator that returns a positive value, or zero if all members were
+     *         processed with no operator returning non-zero.
+     *
+     * @exception HDF5LibraryException
+     *                - Error from the HDF-5 Library.
+     * @exception NullPointerException
+     *                - name is null.
+     **/
+    public static int H5Ovisit_by_name(long loc_id, String obj_name, int idx_type, int order,
+            H5O_iterate_cb op, H5O_iterate_t op_data, long lapl_id) throws HDF5LibraryException, NullPointerException {
+        return H5Ovisit_by_name(loc_id, obj_name, idx_type, order, op, op_data, HDF5Constants.H5O_INFO_ALL, lapl_id);
+    }
 
     /**
      * H5Ovisit_by_name recursively visits all objects starting from a specified object.
@@ -4430,6 +4566,8 @@ public class H5 implements java.io.Serializable {
      *            IN: Callback function passing data regarding the object to the calling application
      * @param op_data
      *            IN: User-defined pointer to data required by the application for its processing of the object
+     * @param fields
+     *            IN: Object fields to select
      * @param lapl_id
      *            IN: Link access property list identifier
      *
@@ -4442,7 +4580,7 @@ public class H5 implements java.io.Serializable {
      *                - name is null.
      **/
     public synchronized static native int H5Ovisit_by_name(long loc_id, String obj_name, int idx_type, int order,
-            H5O_iterate_cb op, H5O_iterate_t op_data, long lapl_id) throws HDF5LibraryException, NullPointerException;
+            H5O_iterate_cb op, H5O_iterate_t op_data, int fields, long lapl_id) throws HDF5LibraryException, NullPointerException;
 
 
     /**
diff --git a/java/src/hdf/hdf5lib/HDF5Constants.java b/java/src/hdf/hdf5lib/HDF5Constants.java
index eb4055d..43109f2 100644
--- a/java/src/hdf/hdf5lib/HDF5Constants.java
+++ b/java/src/hdf/hdf5lib/HDF5Constants.java
@@ -330,6 +330,12 @@ public class HDF5Constants {
     public static final int H5O_COPY_EXPAND_REFERENCE_FLAG = H5O_COPY_EXPAND_REFERENCE_FLAG();
     public static final int H5O_COPY_WITHOUT_ATTR_FLAG = H5O_COPY_WITHOUT_ATTR_FLAG();
     public static final int H5O_COPY_PRESERVE_NULL_FLAG = H5O_COPY_PRESERVE_NULL_FLAG();
+    public static final int H5O_INFO_BASIC = H5O_INFO_BASIC();
+    public static final int H5O_INFO_TIME = H5O_INFO_TIME();
+    public static final int H5O_INFO_NUM_ATTRS = H5O_INFO_NUM_ATTRS();
+    public static final int H5O_INFO_HDR = H5O_INFO_HDR();
+    public static final int H5O_INFO_META_SIZE = H5O_INFO_META_SIZE();
+    public static final int H5O_INFO_ALL = H5O_INFO_ALL();
     public static final int H5O_SHMESG_NONE_FLAG = H5O_SHMESG_NONE_FLAG();
     public static final int H5O_SHMESG_SDSPACE_FLAG = H5O_SHMESG_SDSPACE_FLAG();
     public static final int H5O_SHMESG_DTYPE_FLAG = H5O_SHMESG_DTYPE_FLAG();
@@ -1239,6 +1245,18 @@ public class HDF5Constants {
 
     private static native final int H5O_COPY_PRESERVE_NULL_FLAG();
 
+    private static native final int H5O_INFO_BASIC();
+
+    private static native final int H5O_INFO_TIME();
+
+    private static native final int H5O_INFO_NUM_ATTRS();
+
+    private static native final int H5O_INFO_HDR();
+
+    private static native final int H5O_INFO_META_SIZE();
+
+    private static native final int H5O_INFO_ALL();
+
     private static native final int H5O_SHMESG_NONE_FLAG();
 
     private static native final int H5O_SHMESG_SDSPACE_FLAG();
diff --git a/java/src/jni/h5Constants.c b/java/src/jni/h5Constants.c
index 900316e..0f4361f 100644
--- a/java/src/jni/h5Constants.c
+++ b/java/src/jni/h5Constants.c
@@ -643,6 +643,18 @@ Java_hdf_hdf5lib_HDF5Constants_H5O_1COPY_1WITHOUT_1ATTR_1FLAG(JNIEnv *env, jclas
 JNIEXPORT jint JNICALL
 Java_hdf_hdf5lib_HDF5Constants_H5O_1COPY_1PRESERVE_1NULL_1FLAG(JNIEnv *env, jclass cls){return H5O_COPY_PRESERVE_NULL_FLAG; }
 JNIEXPORT jint JNICALL
+Java_hdf_hdf5lib_HDF5Constants_H5O_1INFO_1BASIC(JNIEnv *env, jclass cls) { return H5O_INFO_BASIC; }
+JNIEXPORT jint JNICALL
+Java_hdf_hdf5lib_HDF5Constants_H5O_1INFO_1TIME(JNIEnv *env, jclass cls) { return H5O_INFO_TIME; }
+JNIEXPORT jint JNICALL
+Java_hdf_hdf5lib_HDF5Constants_H5O_1INFO_1NUM_1ATTRS(JNIEnv *env, jclass cls) { return H5O_INFO_NUM_ATTRS; }
+JNIEXPORT jint JNICALL
+Java_hdf_hdf5lib_HDF5Constants_H5O_1INFO_1HDR(JNIEnv *env, jclass cls) { return H5O_INFO_HDR; }
+JNIEXPORT jint JNICALL
+Java_hdf_hdf5lib_HDF5Constants_H5O_1INFO_1META_1SIZE(JNIEnv *env, jclass cls) { return H5O_INFO_META_SIZE; }
+JNIEXPORT jint JNICALL
+Java_hdf_hdf5lib_HDF5Constants_H5O_1INFO_1ALL(JNIEnv *env, jclass cls) { return H5O_INFO_ALL; }
+JNIEXPORT jint JNICALL
 Java_hdf_hdf5lib_HDF5Constants_H5O_1SHMESG_1NONE_1FLAG(JNIEnv *env, jclass cls){return H5O_SHMESG_NONE_FLAG; }
 JNIEXPORT jint JNICALL
 Java_hdf_hdf5lib_HDF5Constants_H5O_1SHMESG_1SDSPACE_1FLAG(JNIEnv *env, jclass cls){return H5O_SHMESG_SDSPACE_FLAG; }
diff --git a/java/src/jni/h5oImp.c b/java/src/jni/h5oImp.c
index e8abead..7665c70 100644
--- a/java/src/jni/h5oImp.c
+++ b/java/src/jni/h5oImp.c
@@ -105,11 +105,11 @@ Java_hdf_hdf5lib_H5_H5Ocopy
 /*
  * Class:     hdf_hdf5lib_H5
  * Method:    H5Oget_info
- * Signature: (J)Lhdf/hdf5lib/structs/H5O_info_t;
+ * Signature: (JI)Lhdf/hdf5lib/structs/H5O_info_t;
  */
 JNIEXPORT jobject JNICALL
 Java_hdf_hdf5lib_H5_H5Oget_1info
-    (JNIEnv *env, jclass clss, jlong loc_id)
+    (JNIEnv *env, jclass clss, jlong loc_id, jint fields)
 {
     herr_t      status = -1;
     H5O_info_t  infobuf;
@@ -119,7 +119,7 @@ Java_hdf_hdf5lib_H5_H5Oget_1info
     jobject     ihinfobuf2;
     jobject     ret_obj = NULL;
 
-    status = H5Oget_info((hid_t)loc_id, &infobuf);
+    status = H5Oget_info2((hid_t)loc_id, &infobuf, (unsigned)fields);
 
     if (status < 0) {
         h5libraryError(env);
@@ -168,11 +168,11 @@ Java_hdf_hdf5lib_H5_H5Oget_1info
 /*
  * Class:     hdf_hdf5lib_H5
  * Method:    H5Oget_info_by_name
- * Signature: (JLjava/lang/String;J)Lhdf/hdf5lib/structs/H5O_info_t;
+ * Signature: (JLjava/lang/String;IJ)Lhdf/hdf5lib/structs/H5O_info_t;
  */
 JNIEXPORT jobject JNICALL
 Java_hdf_hdf5lib_H5_H5Oget_1info_1by_1name
-    (JNIEnv *env, jclass clss, jlong loc_id, jstring name, jlong access_id)
+    (JNIEnv *env, jclass clss, jlong loc_id, jstring name, jint fields, jlong access_id)
 {
     const char *lName;
     herr_t      status = -1;
@@ -185,7 +185,7 @@ Java_hdf_hdf5lib_H5_H5Oget_1info_1by_1name
 
     PIN_JAVA_STRING(name, lName);
     if (lName != NULL) {
-        status = H5Oget_info_by_name((hid_t)loc_id, lName, &infobuf, (hid_t)access_id);
+        status = H5Oget_info_by_name2((hid_t)loc_id, lName, &infobuf, (unsigned)fields, (hid_t)access_id);
 
         UNPIN_JAVA_STRING(name, lName);
 
@@ -237,12 +237,12 @@ Java_hdf_hdf5lib_H5_H5Oget_1info_1by_1name
 /*
  * Class:     hdf_hdf5lib_H5
  * Method:    H5Oget_info_by_idx
- * Signature: (JLjava/lang/String;IIJJ)Lhdf/hdf5lib/structs/H5O_info_t;
+ * Signature: (JLjava/lang/String;IIJIJ)Lhdf/hdf5lib/structs/H5O_info_t;
  */
 JNIEXPORT jobject JNICALL
 Java_hdf_hdf5lib_H5_H5Oget_1info_1by_1idx
     (JNIEnv *env, jclass clss, jlong loc_id,
-        jstring name, jint index_field, jint order, jlong link_n, jlong access_id)
+        jstring name, jint index_field, jint order, jlong link_n, jint fields, jlong access_id)
 {
     const char *lName;
     herr_t      status;
@@ -255,7 +255,7 @@ Java_hdf_hdf5lib_H5_H5Oget_1info_1by_1idx
 
     PIN_JAVA_STRING(name, lName);
     if (lName != NULL) {
-        status = H5Oget_info_by_idx((hid_t)loc_id, lName, (H5_index_t)index_field, (H5_iter_order_t)order, (hsize_t)link_n, &infobuf, (hid_t)access_id);
+        status = H5Oget_info_by_idx2((hid_t)loc_id, lName, (H5_index_t)index_field, (H5_iter_order_t)order, (hsize_t)link_n, &infobuf, (unsigned)fields, (hid_t)access_id);
 
         UNPIN_JAVA_STRING(name, lName);
 
@@ -423,12 +423,12 @@ H5O_iterate_cb
 /*
  * Class:     hdf_hdf5lib_H5
  * Method:    H5Ovisit
- * Signature: (JIILjava/lang/Object;Ljava/lang/Object;)I
+ * Signature: (JIILjava/lang/Object;Ljava/lang/Object;I)I
  */
 JNIEXPORT jint JNICALL
 Java_hdf_hdf5lib_H5_H5Ovisit
     (JNIEnv *env, jclass clss, jlong grp_id, jint idx_type, jint order,
-        jobject callback_op, jobject op_data)
+        jobject callback_op, jobject op_data, jint fields)
 {
     herr_t   status = -1;
 
@@ -442,7 +442,7 @@ Java_hdf_hdf5lib_H5_H5Ovisit
         h5nullArgument(env, "H5Ovisit:  callback_op is NULL");
     } /* end if */
     else {
-        status = H5Ovisit((hid_t)grp_id, (H5_index_t)idx_type, (H5_iter_order_t)order, (H5O_iterate_t)H5O_iterate_cb, (void*)op_data);
+        status = H5Ovisit2((hid_t)grp_id, (H5_index_t)idx_type, (H5_iter_order_t)order, (H5O_iterate_t)H5O_iterate_cb, (void*)op_data, (unsigned)fields);
 
         if (status < 0)
             h5libraryError(env);
@@ -454,12 +454,12 @@ Java_hdf_hdf5lib_H5_H5Ovisit
 /*
  * Class:     hdf_hdf5lib_H5
  * Method:    H5Ovisit_by_name
- * Signature: (JLjava/lang/String;IILjava/lang/Object;Ljava/lang/Object;J)I
+ * Signature: (JLjava/lang/String;IILjava/lang/Object;Ljava/lang/Object;IJ)I
  */
 JNIEXPORT jint JNICALL
 Java_hdf_hdf5lib_H5_H5Ovisit_1by_1name
     (JNIEnv *env, jclass clss, jlong grp_id, jstring name, jint idx_type, jint order,
-        jobject callback_op, jobject op_data, jlong access_id)
+        jobject callback_op, jobject op_data, jint fields, jlong access_id)
 {
     herr_t        status = -1;
     const char   *lName;
@@ -478,7 +478,7 @@ Java_hdf_hdf5lib_H5_H5Ovisit_1by_1name
     else {
         PIN_JAVA_STRING(name, lName);
         if (lName != NULL) {
-            status = H5Ovisit_by_name((hid_t)grp_id, lName, (H5_index_t)idx_type, (H5_iter_order_t)order, (H5O_iterate_t)H5O_iterate_cb, (void*)op_data, (hid_t)access_id);
+            status = H5Ovisit_by_name2((hid_t)grp_id, lName, (H5_index_t)idx_type, (H5_iter_order_t)order, (H5O_iterate_t)H5O_iterate_cb, (void*)op_data, (unsigned)fields, (hid_t)access_id);
 
             UNPIN_JAVA_STRING(name, lName);
 
diff --git a/java/src/jni/h5oImp.h b/java/src/jni/h5oImp.h
index 224f298..cb8c776 100644
--- a/java/src/jni/h5oImp.h
+++ b/java/src/jni/h5oImp.h
@@ -52,29 +52,29 @@ Java_hdf_hdf5lib_H5_H5Ocopy
 /*
  * Class:     hdf_hdf5lib_H5
  * Method:    H5Oget_info
- * Signature: (J)Lhdf/hdf5lib/structs/H5O_info_t;
+ * Signature: (JI)Lhdf/hdf5lib/structs/H5O_info_t;
  */
 JNIEXPORT jobject JNICALL
 Java_hdf_hdf5lib_H5_H5Oget_1info
-(JNIEnv*, jclass, jlong);
+(JNIEnv*, jclass, jlong, jint fields);
 
 /*
  * Class:     hdf_hdf5lib_H5
  * Method:    H5Oget_info_by_name
- * Signature: (JLjava/lang/String;J)Lhdf/hdf5lib/structs/H5O_info_t;
+ * Signature: (JLjava/lang/String;IJ)Lhdf/hdf5lib/structs/H5O_info_t;
  */
 JNIEXPORT jobject JNICALL
 Java_hdf_hdf5lib_H5_H5Oget_1info_1by_1name
-(JNIEnv*, jclass, jlong, jstring, jlong);
+(JNIEnv*, jclass, jlong, jstring, jint fields, jlong);
 
 /*
  * Class:     hdf_hdf5lib_H5
  * Method:    H5Oget_info_by_idx
- * Signature: (JLjava/lang/String;IIJJ)Lhdf/hdf5lib/structs/H5O_info_t;
+ * Signature: (JLjava/lang/String;IIJIJ)Lhdf/hdf5lib/structs/H5O_info_t;
  */
 JNIEXPORT jobject JNICALL
 Java_hdf_hdf5lib_H5_H5Oget_1info_1by_1idx
-(JNIEnv*, jclass, jlong, jstring, jint, jint, jlong, jlong);
+(JNIEnv*, jclass, jlong, jstring, jint, jint, jlong, jint fields, jlong);
 
 /*
  * Class:     hdf_hdf5lib_H5
@@ -88,20 +88,20 @@ Java_hdf_hdf5lib_H5_H5Olink
 /*
  * Class:     hdf_hdf5lib_H5
  * Method:    H5Ovisit
- * Signature: (JIILjava/lang/Object;Ljava/lang/Object;)I
+ * Signature: (JIILjava/lang/Object;Ljava/lang/Object;I)I
  */
 JNIEXPORT jint JNICALL
 Java_hdf_hdf5lib_H5_H5Ovisit
-  (JNIEnv*, jclass, jlong, jint, jint, jobject, jobject);
+  (JNIEnv*, jclass, jlong, jint, jint, jobject, jobject, jint);
 
 /*
  * Class:     hdf_hdf5lib_H5
  * Method:    H5Ovisit_by_name
- * Signature: (JLjava/lang/String;IILjava/lang/Object;Ljava/lang/Object;J)I
+ * Signature: (JLjava/lang/String;IILjava/lang/Object;Ljava/lang/Object;IJ)I
  */
 JNIEXPORT jint JNICALL
 Java_hdf_hdf5lib_H5_H5Ovisit_1by_1name
-  (JNIEnv*, jclass, jlong, jstring, jint, jint, jobject, jobject, jlong);
+  (JNIEnv*, jclass, jlong, jstring, jint, jint, jobject, jobject, jint, jlong);
 
 /*
  * Class:     hdf_hdf5lib_H5
diff --git a/java/src/jni/h5pImp.c b/java/src/jni/h5pImp.c
index 49cfeb9..3ff7436 100644
--- a/java/src/jni/h5pImp.c
+++ b/java/src/jni/h5pImp.c
@@ -5204,10 +5204,10 @@ Java_hdf_hdf5lib_H5_H5Pset_1append_1flush
     visit_callback = callback_op;
 
     if (op_data == NULL) {
-        h5nullArgument(env, "H5Ovisit:  op_data is NULL");
+        h5nullArgument(env, "H5Pset_append_flush:  op_data is NULL");
     } /* end if */
     else if (callback_op == NULL) {
-        h5nullArgument(env, "H5Ovisit:  callback_op is NULL");
+        h5nullArgument(env, "H5Pset_append_flush:  callback_op is NULL");
     } /* end if */
     else {
         status = H5Pset_append_flush((hid_t)plist_id, (unsigned)ndims, (const hsize_t*)boundary, (H5D_append_cb_t)H5D_append_cb, (void*)op_data);
diff --git a/java/src/jni/h5util.c b/java/src/jni/h5util.c
index fdabd76..9a98202 100644
--- a/java/src/jni/h5util.c
+++ b/java/src/jni/h5util.c
@@ -425,7 +425,7 @@ h5str_sprintf
 
                 this_str = (char*)HDmalloc(64);
                 obj = H5Rdereference2(container, H5P_DEFAULT, H5R_OBJECT, ptr);
-                H5Oget_info(obj, &oi);
+                H5Oget_info2(obj, &oi, H5O_INFO_ALL);
 
                 /* Print object data and close object */
                 sprintf(this_str, "%u-%lu", (unsigned) oi.type, oi.addr);
@@ -2552,7 +2552,7 @@ obj_info_all
     info_all_t *datainfo = (info_all_t*)op_data;
     H5O_info_t  object_info;
 
-    retVal = H5Oget_info_by_name(loc_id, name, &object_info, H5P_DEFAULT);
+    retVal = H5Oget_info_by_name2(loc_id, name, &object_info, H5O_INFO_ALL, H5P_DEFAULT);
 
     if (retVal < 0) {
         *(datainfo->otype+datainfo->count) = -1;
@@ -2591,7 +2591,7 @@ obj_info_max
     info_all_t *datainfo = (info_all_t*)op_data;
     H5O_info_t  object_info;
 
-    retVal = H5Oget_info(loc_id, &object_info);
+    retVal = H5Oget_info2(loc_id, &object_info, H5O_INFO_ALL);
     if (retVal < 0) {
         *(datainfo->otype+datainfo->count) = -1;
         *(datainfo->ltype+datainfo->count) = -1;
diff --git a/java/test/TestH5Oparams.java b/java/test/TestH5Oparams.java
index 2af190f..8b3c673 100644
--- a/java/test/TestH5Oparams.java
+++ b/java/test/TestH5Oparams.java
@@ -71,27 +71,27 @@ public class TestH5Oparams {
 
     @Test(expected = HDF5LibraryException.class)
     public void testH5Oget_info_invalid() throws Throwable {
-        H5.H5Oget_info(-1);
+        H5.H5Oget_info(-1, 0);
     }
 
     @Test(expected = NullPointerException.class)
     public void testH5Oget_info_by_name_null() throws Throwable {
-        H5.H5Oget_info_by_name(-1, null, HDF5Constants.H5P_DEFAULT);
+        H5.H5Oget_info_by_name(-1, null, 0, HDF5Constants.H5P_DEFAULT);
     }
 
     @Test(expected = HDF5LibraryException.class)
     public void testH5Oget_info_by_name_invalid() throws Throwable {
-        H5.H5Oget_info_by_name(-1, "/testH5Gcreate", HDF5Constants.H5P_DEFAULT);
+        H5.H5Oget_info_by_name(-1, "/testH5Gcreate", 0, HDF5Constants.H5P_DEFAULT);
     }
 
     @Test(expected = HDF5LibraryException.class)
     public void testH5Oget_info_by_idx_invalid() throws Throwable {
-        H5.H5Oget_info_by_idx(-1, "Bogus", -1, -1, -1L, -1);
+        H5.H5Oget_info_by_idx(-1, "Bogus", -1, -1, -1L, 0, -1);
     }
 
     @Test(expected = NullPointerException.class)
     public void testH5Oget_info_by_idx_null() throws Throwable {
-        H5.H5Oget_info_by_idx(-1, null, 0, 0, 0L, 0);
+        H5.H5Oget_info_by_idx(-1, null, 0, 0, 0L, 0, 0);
     }
 
     @Test(expected = HDF5LibraryException.class)
@@ -106,17 +106,17 @@ public class TestH5Oparams {
 
     @Test(expected = NullPointerException.class)
     public void testH5Ovisit_null() throws Throwable {
-        H5.H5Ovisit(-1, -1, -1, null, null);
+        H5.H5Ovisit(-1, -1, -1, null, null, 0);
     }
 
     @Test(expected = NullPointerException.class)
     public void testH5Ovisit_by_name_nullname() throws Throwable {
-        H5.H5Ovisit_by_name(-1, null, -1, -1, null, null, -1);
+        H5.H5Ovisit_by_name(-1, null, -1, -1, null, null, 0, -1);
     }
 
     @Test(expected = NullPointerException.class)
     public void testH5Ovisit_by_name_null() throws Throwable {
-        H5.H5Ovisit_by_name(-1, "Bogus", -1, -1, null, null, -1);
+        H5.H5Ovisit_by_name(-1, "Bogus", -1, -1, null, null, 0, -1);
     }
 
     @Test(expected = HDF5LibraryException.class)
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt
index d3283d0..dde6241 100644
--- a/release_docs/RELEASE.txt
+++ b/release_docs/RELEASE.txt
@@ -155,6 +155,19 @@ Bug Fixes since HDF5-1.10.2 release
 
       (ADB 2018/05/08)
 
+    - The --enable-debug/production configure flags are listed as 'deprecated'
+      when they should really be listed as 'removed'.
+
+      In the autotools overhaul several years ago, we removed these flags and
+      implemented a new --enable-build-mode= flag. This was done because we
+      changed the semantics of the modes and didn't want users to silently
+      be exposed to them. The newer system is also more flexible and us to
+      add other modes (like 'clean').
+
+      The --enable-debug/production flags are now listed as removed.
+
+      (DER - 2018/05/31, HDFFV-10505)
+
     Performance
     -------------
     -
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 9ff70f9..9a1f545 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -450,6 +450,7 @@ set (H5O_SOURCES
     ${HDF5_SRC_DIR}/H5Ocont.c
     ${HDF5_SRC_DIR}/H5Ocopy.c
     ${HDF5_SRC_DIR}/H5Odbg.c
+    ${HDF5_SRC_DIR}/H5Odeprec.c
     ${HDF5_SRC_DIR}/H5Odrvinfo.c
     ${HDF5_SRC_DIR}/H5Odtype.c
     ${HDF5_SRC_DIR}/H5Oefl.c
diff --git a/src/H5B.c b/src/H5B.c
index fe09b42..1f19d7b 100644
--- a/src/H5B.c
+++ b/src/H5B.c
@@ -245,7 +245,7 @@ H5B_create(H5F_t *f, const H5B_class_t *type, void *udata, haddr_t *addr_p/*out*
             NULL == (bt->child = H5FL_SEQ_MALLOC(haddr_t, (size_t)shared->two_k)))
 	HGOTO_ERROR(H5E_BTREE, H5E_CANTALLOC, FAIL, "memory allocation failed for B-tree root node")
     if(HADDR_UNDEF == (*addr_p = H5MF_alloc(f, H5FD_MEM_BTREE, (hsize_t)shared->sizeof_rnode)))
-	HGOTO_ERROR(H5E_BTREE, H5E_CANTALLOC, FAIL, "file allocation failed for B-tree root node")
+        HGOTO_ERROR(H5E_BTREE, H5E_CANTALLOC, FAIL, "file allocation failed for B-tree root node")
 
     /*
      * Cache the new B-tree node.
@@ -320,7 +320,7 @@ H5B_find(H5F_t *f, const H5B_class_t *type, haddr_t addr, void *udata)
 
     /* Get shared info for B-tree */
     if(NULL == (rc_shared = (type->get_shared)(f, udata)))
-	HGOTO_ERROR(H5E_BTREE, H5E_CANTGET, FAIL, "can't retrieve B-tree's shared ref. count object")
+        HGOTO_ERROR(H5E_BTREE, H5E_CANTGET, FAIL, "can't retrieve B-tree's shared ref. count object")
     shared = (H5B_shared_t *)H5UC_GET_OBJ(rc_shared);
     HDassert(shared);
 
@@ -332,7 +332,7 @@ H5B_find(H5F_t *f, const H5B_class_t *type, haddr_t addr, void *udata)
     cache_udata.type = type;
     cache_udata.rc_shared = rc_shared;
     if(NULL == (bt = (H5B_t *)H5AC_protect(f, H5AC_BT, addr, &cache_udata, H5AC__READ_ONLY_FLAG)))
-	HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree node")
+        HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree node")
 
     rt = bt->nchildren;
     while(lt < rt && cmp) {
@@ -1300,7 +1300,7 @@ H5B__remove_helper(H5F_t *f, haddr_t addr, const H5B_class_t *type, int level,
 	if((int)(ret_value = H5B__remove_helper(f, bt->child[idx], type,
                 level + 1, H5B_NKEY(bt, shared, idx)/*out*/,
                 lt_key_changed/*out*/, udata, H5B_NKEY(bt, shared, idx + 1)/*out*/,
-                 rt_key_changed/*out*/)) < 0)
+                rt_key_changed/*out*/)) < 0)
 	    HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, H5B_INS_ERROR, "key not found in subtree")
     } else if(type->remove) {
 	/*
diff --git a/src/H5B2dbg.c b/src/H5B2dbg.c
index c4f56e5..0e3ebd5 100644
--- a/src/H5B2dbg.c
+++ b/src/H5B2dbg.c
@@ -109,7 +109,7 @@ H5B2__hdr_debug(H5F_t *f, haddr_t addr, FILE *stream, int indent, int fwidth,
 
     /* Load the B-tree header  */
     if(NULL == (hdr = H5B2__hdr_protect(f, addr, f, H5AC__READ_ONLY_FLAG)))
-	HGOTO_ERROR(H5E_BTREE, H5E_CANTLOAD, FAIL, "unable to load B-tree header")
+        HGOTO_ERROR(H5E_BTREE, H5E_CANTLOAD, FAIL, "unable to load B-tree header")
 
     /* Set file pointer for this B-tree operation */
     hdr->f = f;
@@ -208,7 +208,7 @@ H5B2__int_debug(H5F_t *f, haddr_t addr, FILE *stream, int indent, int fwidth,
 
     /* Load the B-tree header */
     if(NULL == (hdr = H5B2__hdr_protect(f, hdr_addr, f, H5AC__READ_ONLY_FLAG)))
-	HGOTO_ERROR(H5E_BTREE, H5E_CANTLOAD, FAIL, "unable to load v2 B-tree header")
+        HGOTO_ERROR(H5E_BTREE, H5E_CANTLOAD, FAIL, "unable to load v2 B-tree header")
 
     /* Set file pointer for this B-tree operation */
     hdr->f = f;
@@ -220,7 +220,7 @@ H5B2__int_debug(H5F_t *f, haddr_t addr, FILE *stream, int indent, int fwidth,
     node_ptr.addr = addr;
     H5_CHECKED_ASSIGN(node_ptr.node_nrec, uint16_t, nrec, unsigned)
     if(NULL == (internal = H5B2__protect_internal(hdr, NULL, &node_ptr, (uint16_t)depth, FALSE, H5AC__READ_ONLY_FLAG)))
-	HGOTO_ERROR(H5E_BTREE, H5E_CANTLOAD, FAIL, "unable to load B-tree internal node")
+        HGOTO_ERROR(H5E_BTREE, H5E_CANTLOAD, FAIL, "unable to load B-tree internal node")
 
     /* Print opening message */
     HDfprintf(stream, "%*sv2 B-tree Internal Node...\n", indent, "");
@@ -320,7 +320,7 @@ H5B2__leaf_debug(H5F_t *f, haddr_t addr, FILE *stream, int indent, int fwidth,
 
     /* Load the B-tree header */
     if(NULL == (hdr = H5B2__hdr_protect(f, hdr_addr, f, H5AC__READ_ONLY_FLAG)))
-	HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to protect v2 B-tree header")
+        HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to protect v2 B-tree header")
 
     /* Set file pointer for this B-tree operation */
     hdr->f = f;
@@ -332,7 +332,7 @@ H5B2__leaf_debug(H5F_t *f, haddr_t addr, FILE *stream, int indent, int fwidth,
     node_ptr.addr = addr;
     H5_CHECKED_ASSIGN(node_ptr.node_nrec, uint16_t, nrec, unsigned)
     if(NULL == (leaf = H5B2__protect_leaf(hdr, NULL, &node_ptr, FALSE, H5AC__READ_ONLY_FLAG)))
-	HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to protect B-tree leaf node")
+        HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to protect B-tree leaf node")
 
     /* Print opening message */
     HDfprintf(stream, "%*sv2 B-tree Leaf Node...\n", indent, "");
diff --git a/src/H5B2pkg.h b/src/H5B2pkg.h
index 552cebb..27229f1 100644
--- a/src/H5B2pkg.h
+++ b/src/H5B2pkg.h
@@ -467,7 +467,7 @@ H5_DLL herr_t H5B2__assert_leaf2(const H5B2_hdr_t *hdr, const H5B2_leaf_t *leaf,
 
 /* Testing routines */
 #ifdef H5B2_TESTING
-H5_DLL herr_t H5B2_get_root_addr_test(H5B2_t *bt2, haddr_t *root_addr);
+H5_DLL herr_t H5B2__get_root_addr_test(H5B2_t *bt2, haddr_t *root_addr);
 H5_DLL int H5B2__get_node_depth_test(H5B2_t *bt2, void *udata);
 H5_DLL herr_t H5B2__get_node_info_test(H5B2_t *bt2, void *udata,
     H5B2_node_info_test_t *ninfo);
diff --git a/src/H5B2test.c b/src/H5B2test.c
index 49fe3af..0f4a39c 100644
--- a/src/H5B2test.c
+++ b/src/H5B2test.c
@@ -469,12 +469,11 @@ H5B2__test2_debug(FILE *stream, int indent, int fwidth, const void *record,
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5B2_get_root_addr_test
+ * Function:    H5B2__get_root_addr_test
  *
- * Purpose:	Retrieve the root node's address
+ * Purpose:     Retrieve the root node's address
  *
- * Return:	Success:	non-negative
- *		Failure:	negative
+ * Return:      SUCCEED/FAIL
  *
  * Programmer:	Quincey Koziol
  *              Saturday, February 26, 2005
@@ -482,7 +481,7 @@ H5B2__test2_debug(FILE *stream, int indent, int fwidth, const void *record,
  *-------------------------------------------------------------------------
  */
 herr_t
-H5B2_get_root_addr_test(H5B2_t *bt2, haddr_t *root_addr)
+H5B2__get_root_addr_test(H5B2_t *bt2, haddr_t *root_addr)
 {
     FUNC_ENTER_NOAPI_NOINIT_NOERR
 
@@ -494,16 +493,15 @@ H5B2_get_root_addr_test(H5B2_t *bt2, haddr_t *root_addr)
     *root_addr = bt2->hdr->root.addr;
 
     FUNC_LEAVE_NOAPI(SUCCEED)
-} /* H5B2_get_root_addr_test() */
+} /* H5B2__get_root_addr_test() */
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5B2__get_node_info_test
+ * Function:    H5B2__get_node_info_test
  *
- * Purpose:	Determine information about a node holding a record in the B-tree
+ * Purpose:     Determine information about a node holding a record in the B-tree
  *
- * Return:	Success:	non-negative
- *		Failure:	negative
+ * Return:      SUCCEED/FAIL
  *
  * Programmer:	Quincey Koziol
  *              Thursday, August 31, 2006
@@ -647,15 +645,16 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5B2__get_node_depth_test
+ * Function:    H5B2__get_node_depth_test
  *
- * Purpose:	Determine the depth of a node holding a record in the B-tree
+ * Purpose:     Determine the depth of a node holding a record in the B-tree
  *
- * Note:	Just a simple wrapper around the H5B2__get_node_info_test() routine
+ * Note:        Just a simple wrapper around the H5B2__get_node_info_test() routine
  *
- * Return:	Success:	non-negative depth of the node where the record
- *                              was found
- *		Failure:	negative
+ * Return:      Success:    Non-negative depth of the node where the record
+ *                          was found
+ *
+ *              Failure:    -1
  *
  * Programmer:	Quincey Koziol
  *              Saturday, August 26, 2006
@@ -675,7 +674,7 @@ H5B2__get_node_depth_test(H5B2_t *bt2, void *udata)
 
     /* Get information abou the node */
     if(H5B2__get_node_info_test(bt2, udata, &ninfo) < 0)
-        HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, FAIL, "error looking up node info")
+        HGOTO_ERROR(H5E_BTREE, H5E_NOTFOUND, (-1), "error looking up node info")
 
     /* Set return value */
     ret_value = (int)ninfo.depth;
diff --git a/src/H5CX.c b/src/H5CX.c
index deaf1a1..f809d1c 100644
--- a/src/H5CX.c
+++ b/src/H5CX.c
@@ -233,24 +233,10 @@ typedef struct H5CX_t {
     hbool_t data_transform_valid; /* Whether data transform info is valid */
     H5T_vlen_alloc_info_t vl_alloc_info; /* VL datatype alloc info (H5D_XFER_VLEN_*_NAME) */
     hbool_t vl_alloc_info_valid; /* Whether VL datatype alloc info is valid */
-    hbool_t dcr_flag;           /* Direct chunk read flag (H5D_XFER_DIRECT_CHUNK_READ_FLAG_NAME) */
-    hbool_t dcr_flag_valid;     /* Whether direct chunk read flag is valid */
-    hsize_t *dcr_offset;        /* Direct chunk read offset (H5D_XFER_DIRECT_CHUNK_READ_OFFSET_NAME) */
-    hbool_t dcr_offset_valid;   /* Whether direct chunk read offset is valid */
-    hbool_t dcw_flag;           /* Direct chunk write flag (H5D_XFER_DIRECT_CHUNK_WRITE_FLAG_NAME) */
-    hbool_t dcw_flag_valid;     /* Whether direct chunk write flag is valid */
-    uint32_t dcw_filters;       /* Direct chunk write filter flags (H5D_XFER_DIRECT_CHUNK_WRITE_FILTERS_NAME) */
-    hbool_t dcw_filters_valid;  /* Whether direct chunk write filter flags is valid */
-    hsize_t *dcw_offset;        /* Direct chunk write offset (H5D_XFER_DIRECT_CHUNK_WRITE_OFFSET_NAME) */
-    hbool_t dcw_offset_valid;   /* Whether direct chunk write offset is valid */
-    uint32_t dcw_datasize;      /* Direct chunk write data size (H5D_XFER_DIRECT_CHUNK_WRITE_DATASIZE_NAME) */
-    hbool_t dcw_datasize_valid; /* Whether direct chunk write data size is valid */
     H5T_conv_cb_t dt_conv_cb;   /* Datatype conversion struct (H5D_XFER_CONV_CB_NAME) */
     hbool_t dt_conv_cb_valid;   /* Whether datatype conversion struct is valid */
 
     /* Return-only DXPL properties to return to application */
-    uint32_t dcr_filters;       /* Direct chunk read filter flags (H5D_XFER_DIRECT_CHUNK_READ_FILTERS_NAME) */
-    hbool_t dcr_filters_set;    /* Whether direct chunk read filter flags are set */
 #ifdef H5_HAVE_PARALLEL
     H5D_mpio_actual_chunk_opt_mode_t mpio_actual_chunk_opt; /* Chunk optimization mode used for parallel I/O (H5D_MPIO_ACTUAL_CHUNK_OPT_MODE_NAME) */
     hbool_t mpio_actual_chunk_opt_set; /* Whether chunk optimization mode used for parallel I/O is set */
@@ -321,12 +307,6 @@ typedef struct H5CX_dxpl_cache_t {
     H5Z_cb_t filter_cb;             /* Filter callback function (H5D_XFER_FILTER_CB_NAME) */
     H5Z_data_xform_t *data_transform; /* Data transform info (H5D_XFER_XFORM_NAME) */
     H5T_vlen_alloc_info_t vl_alloc_info; /* VL datatype alloc info (H5D_XFER_VLEN_*_NAME) */
-    hbool_t dcr_flag;               /* Direct chunk read flag (H5D_XFER_DIRECT_CHUNK_READ_FLAG_NAME) */
-    hsize_t *dcr_offset;            /* Direct chunk read offset (H5D_XFER_DIRECT_CHUNK_READ_OFFSET_NAME) */
-    hbool_t dcw_flag;               /* Direct chunk write flag (H5D_XFER_DIRECT_CHUNK_WRITE_FLAG_NAME) */
-    uint32_t dcw_datasize;          /* Direct chunk write data size (H5D_XFER_DIRECT_CHUNK_WRITE_DATASIZE_NAME) */
-    hsize_t *dcw_offset;            /* Direct chunk write offset (H5D_XFER_DIRECT_CHUNK_WRITE_OFFSET_NAME) */
-    uint32_t dcw_filters;           /* Direct chunk write filter flags (H5D_XFER_DIRECT_CHUNK_WRITE_FILTERS_NAME) */
     H5T_conv_cb_t dt_conv_cb;       /* Datatype conversion struct (H5D_XFER_CONV_CB_NAME) */
 } H5CX_dxpl_cache_t;
 
@@ -469,27 +449,10 @@ H5CX__init_package(void)
     if(H5P_get(dx_plist, H5D_XFER_VLEN_FREE_INFO_NAME, &H5CX_def_dxpl_cache.vl_alloc_info.free_info) < 0)
         HGOTO_ERROR(H5E_CONTEXT, H5E_CANTGET, FAIL, "Can't retrieve VL datatype alloc info")
 
-    /* Get direct chunk read info */
-    if(H5P_get(dx_plist, H5D_XFER_DIRECT_CHUNK_READ_FLAG_NAME, &H5CX_def_dxpl_cache.dcr_flag) < 0)
-        HGOTO_ERROR(H5E_CONTEXT, H5E_CANTGET, FAIL, "Can't retrieve direct chunk read flag")
-    if(H5P_get(dx_plist, H5D_XFER_DIRECT_CHUNK_READ_OFFSET_NAME, &H5CX_def_dxpl_cache.dcr_offset) < 0)
-        HGOTO_ERROR(H5E_CONTEXT, H5E_CANTGET, FAIL, "Can't retrieve direct chunk read offset")
-
-    /* Get direct chunk write info */
-    if(H5P_get(dx_plist, H5D_XFER_DIRECT_CHUNK_WRITE_FLAG_NAME, &H5CX_def_dxpl_cache.dcw_flag) < 0)
-        HGOTO_ERROR(H5E_CONTEXT, H5E_CANTGET, FAIL, "Can't retrieve direct chunk write flag")
-    if(H5P_get(dx_plist, H5D_XFER_DIRECT_CHUNK_WRITE_FILTERS_NAME, &H5CX_def_dxpl_cache.dcw_filters) < 0)
-        HGOTO_ERROR(H5E_CONTEXT, H5E_CANTGET, FAIL, "Can't retrieve direct chunk write filter mask")
-    if(H5P_get(dx_plist, H5D_XFER_DIRECT_CHUNK_WRITE_OFFSET_NAME, &H5CX_def_dxpl_cache.dcw_offset) < 0)
-        HGOTO_ERROR(H5E_CONTEXT, H5E_CANTGET, FAIL, "Can't retrieve direct chunk write offset")
-    if(H5P_get(dx_plist, H5D_XFER_DIRECT_CHUNK_WRITE_DATASIZE_NAME, &H5CX_def_dxpl_cache.dcw_datasize) < 0)
-        HGOTO_ERROR(H5E_CONTEXT, H5E_CANTGET, FAIL, "Can't retrieve direct chunk write data size")
-
     /* Get datatype conversion struct */
     if(H5P_get(dx_plist, H5D_XFER_CONV_CB_NAME, &H5CX_def_dxpl_cache.dt_conv_cb) < 0)
         HGOTO_ERROR(H5E_CONTEXT, H5E_CANTGET, FAIL, "Can't retrieve datatype conversion exception callback")
 
-
     /* Reset the "default LAPL cache" information */
     HDmemset(&H5CX_def_lapl_cache, 0, sizeof(H5CX_lapl_cache_t));
 
@@ -1791,216 +1754,6 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:    H5CX_get_dcr_flag
- *
- * Purpose:     Retrieves the direct chunk read flag for the current API call context.
- *
- * Return:      Non-negative on success / Negative on failure
- *
- * Programmer:  Quincey Koziol
- *              March 6, 2018
- *
- *-------------------------------------------------------------------------
- */
-herr_t
-H5CX_get_dcr_flag(hbool_t *dcr_flag)
-{
-    H5CX_node_t **head = H5CX_get_my_context();  /* Get the pointer to the head of the API context, for this thread */
-    herr_t ret_value = SUCCEED;         /* Return value */
-
-    FUNC_ENTER_NOAPI(FAIL)
-
-    /* Sanity check */
-    HDassert(dcr_flag);
-    HDassert(head && *head);
-    HDassert(H5P_DEFAULT != (*head)->ctx.dxpl_id);
-
-    H5CX_RETRIEVE_PROP_VALID(dxpl, H5P_DATASET_XFER_DEFAULT, H5D_XFER_DIRECT_CHUNK_READ_FLAG_NAME, dcr_flag)
-
-    /* Get the value */
-    *dcr_flag = (*head)->ctx.dcr_flag;
-
-done:
-    FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5CX_get_dcr_flag() */
-
-
-/*-------------------------------------------------------------------------
- * Function:    H5CX_get_dcr_offset
- *
- * Purpose:     Retrieves the direct chunk read offset for the current API call context.
- *
- * Return:      Non-negative on success / Negative on failure
- *
- * Programmer:  Quincey Koziol
- *              March 6, 2018
- *
- *-------------------------------------------------------------------------
- */
-herr_t
-H5CX_get_dcr_offset(hsize_t **dcr_offset)
-{
-    H5CX_node_t **head = H5CX_get_my_context();  /* Get the pointer to the head of the API context, for this thread */
-    herr_t ret_value = SUCCEED;         /* Return value */
-
-    FUNC_ENTER_NOAPI(FAIL)
-
-    /* Sanity check */
-    HDassert(dcr_offset);
-    HDassert(head && *head);
-    HDassert(H5P_DEFAULT != (*head)->ctx.dxpl_id);
-
-    H5CX_RETRIEVE_PROP_VALID(dxpl, H5P_DATASET_XFER_DEFAULT, H5D_XFER_DIRECT_CHUNK_READ_OFFSET_NAME, dcr_offset)
-
-    /* Get the value */
-    *dcr_offset = (*head)->ctx.dcr_offset;
-
-done:
-    FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5CX_get_dcr_offset() */
-
-
-/*-------------------------------------------------------------------------
- * Function:    H5CX_get_dcw_flag
- *
- * Purpose:     Retrieves the direct chunk write flag for the current API call context.
- *
- * Return:      Non-negative on success / Negative on failure
- *
- * Programmer:  Quincey Koziol
- *              March 6, 2018
- *
- *-------------------------------------------------------------------------
- */
-herr_t
-H5CX_get_dcw_flag(hbool_t *dcw_flag)
-{
-    H5CX_node_t **head = H5CX_get_my_context();  /* Get the pointer to the head of the API context, for this thread */
-    herr_t ret_value = SUCCEED;         /* Return value */
-
-    FUNC_ENTER_NOAPI(FAIL)
-
-    /* Sanity check */
-    HDassert(dcw_flag);
-    HDassert(head && *head);
-    HDassert(H5P_DEFAULT != (*head)->ctx.dxpl_id);
-
-    H5CX_RETRIEVE_PROP_VALID(dxpl, H5P_DATASET_XFER_DEFAULT, H5D_XFER_DIRECT_CHUNK_WRITE_FLAG_NAME, dcw_flag)
-
-    /* Get the value */
-    *dcw_flag = (*head)->ctx.dcw_flag;
-
-done:
-    FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5CX_get_dcw_flag() */
-
-
-/*-------------------------------------------------------------------------
- * Function:    H5CX_get_dcw_filters
- *
- * Purpose:     Retrieves the direct chunk write filter mask for the current API call context.
- *
- * Return:      Non-negative on success / Negative on failure
- *
- * Programmer:  Quincey Koziol
- *              March 6, 2018
- *
- *-------------------------------------------------------------------------
- */
-herr_t
-H5CX_get_dcw_filters(uint32_t *dcw_filters)
-{
-    H5CX_node_t **head = H5CX_get_my_context();  /* Get the pointer to the head of the API context, for this thread */
-    herr_t ret_value = SUCCEED;         /* Return value */
-
-    FUNC_ENTER_NOAPI(FAIL)
-
-    /* Sanity check */
-    HDassert(dcw_filters);
-    HDassert(head && *head);
-    HDassert(H5P_DEFAULT != (*head)->ctx.dxpl_id);
-
-    H5CX_RETRIEVE_PROP_VALID(dxpl, H5P_DATASET_XFER_DEFAULT, H5D_XFER_DIRECT_CHUNK_WRITE_FILTERS_NAME, dcw_filters)
-
-    /* Get the value */
-    *dcw_filters = (*head)->ctx.dcw_filters;
-
-done:
-    FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5CX_get_dcw_filters() */
-
-
-/*-------------------------------------------------------------------------
- * Function:    H5CX_get_dcw_offset
- *
- * Purpose:     Retrieves the direct chunk write offset for the current API call context.
- *
- * Return:      Non-negative on success / Negative on failure
- *
- * Programmer:  Quincey Koziol
- *              March 6, 2018
- *
- *-------------------------------------------------------------------------
- */
-herr_t
-H5CX_get_dcw_offset(hsize_t **dcw_offset)
-{
-    H5CX_node_t **head = H5CX_get_my_context();  /* Get the pointer to the head of the API context, for this thread */
-    herr_t ret_value = SUCCEED;         /* Return value */
-
-    FUNC_ENTER_NOAPI(FAIL)
-
-    /* Sanity check */
-    HDassert(dcw_offset);
-    HDassert(head && *head);
-    HDassert(H5P_DEFAULT != (*head)->ctx.dxpl_id);
-
-    H5CX_RETRIEVE_PROP_VALID(dxpl, H5P_DATASET_XFER_DEFAULT, H5D_XFER_DIRECT_CHUNK_WRITE_OFFSET_NAME, dcw_offset)
-
-    /* Get the value */
-    *dcw_offset = (*head)->ctx.dcw_offset;
-
-done:
-    FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5CX_get_dcw_offset() */
-
-
-/*-------------------------------------------------------------------------
- * Function:    H5CX_get_dcw_datasize
- *
- * Purpose:     Retrieves the direct chunk write data size for the current API call context.
- *
- * Return:      Non-negative on success / Negative on failure
- *
- * Programmer:  Quincey Koziol
- *              March 6, 2018
- *
- *-------------------------------------------------------------------------
- */
-herr_t
-H5CX_get_dcw_datasize(uint32_t *dcw_datasize)
-{
-    H5CX_node_t **head = H5CX_get_my_context();  /* Get the pointer to the head of the API context, for this thread */
-    herr_t ret_value = SUCCEED;         /* Return value */
-
-    FUNC_ENTER_NOAPI(FAIL)
-
-    /* Sanity check */
-    HDassert(dcw_datasize);
-    HDassert(head && *head);
-    HDassert(H5P_DEFAULT != (*head)->ctx.dxpl_id);
-
-    H5CX_RETRIEVE_PROP_VALID(dxpl, H5P_DATASET_XFER_DEFAULT, H5D_XFER_DIRECT_CHUNK_WRITE_DATASIZE_NAME, dcw_datasize)
-
-    /* Get the value */
-    *dcw_datasize = (*head)->ctx.dcw_datasize;
-
-done:
-    FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5CX_get_dcw_datasize() */
-
-
-/*-------------------------------------------------------------------------
  * Function:    H5CX_get_dt_conv_cb
  *
  * Purpose:     Retrieves the datatype conversion exception callback for the current API call context.
@@ -2358,38 +2111,6 @@ done:
     FUNC_LEAVE_NOAPI(ret_value)
 } /* end H5CX_set_nlinks() */
 
-
-/*-------------------------------------------------------------------------
- * Function:    H5CX_set_dcr_filters
- *
- * Purpose:     Sets the direct chunk read filter flags for the current API call context.
- *
- * Return:      <none>
- *
- * Programmer:  Quincey Koziol
- *              March 6, 2018
- *
- *-------------------------------------------------------------------------
- */
-void
-H5CX_set_dcr_filters(uint32_t direct_filters)
-{
-    H5CX_node_t **head = H5CX_get_my_context();  /* Get the pointer to the head of the API context, for this thread */
-
-    FUNC_ENTER_NOAPI_NOINIT_NOERR
-
-    /* Sanity checks */
-    HDassert(head && *head);
-    HDassert(!((*head)->ctx.dxpl_id == H5P_DEFAULT || 
-            (*head)->ctx.dxpl_id == H5P_DATASET_XFER_DEFAULT));
-
-    /* Cache the filter mask for later, marking it to set in DXPL when context popped */
-    (*head)->ctx.dcr_filters = direct_filters;
-    (*head)->ctx.dcr_filters_set = TRUE;
-
-    FUNC_LEAVE_NOAPI_VOID
-} /* end H5CX_set_dcr_filters() */
-
 #ifdef H5_HAVE_PARALLEL
 
 /*-------------------------------------------------------------------------
@@ -2755,7 +2476,6 @@ H5CX__pop_common(void)
     HDassert(head && *head);
 
     /* Check for cached DXPL properties to return to application */
-    H5CX_SET_PROP(H5D_XFER_DIRECT_CHUNK_READ_FILTERS_NAME, dcr_filters)
 #ifdef H5_HAVE_PARALLEL
     H5CX_SET_PROP(H5D_MPIO_ACTUAL_CHUNK_OPT_MODE_NAME, mpio_actual_chunk_opt)
     H5CX_SET_PROP(H5D_MPIO_ACTUAL_IO_MODE_NAME, mpio_actual_io_mode)
diff --git a/src/H5CXprivate.h b/src/H5CXprivate.h
index 3566f11..44a4067 100644
--- a/src/H5CXprivate.h
+++ b/src/H5CXprivate.h
@@ -95,12 +95,6 @@ H5_DLL herr_t H5CX_get_err_detect(H5Z_EDC_t *err_detect);
 H5_DLL herr_t H5CX_get_filter_cb(H5Z_cb_t *filter_cb);
 H5_DLL herr_t H5CX_get_data_transform(H5Z_data_xform_t **data_transform);
 H5_DLL herr_t H5CX_get_vlen_alloc_info(H5T_vlen_alloc_info_t *vl_alloc_info);
-H5_DLL herr_t H5CX_get_dcr_flag(hbool_t *direct_read);
-H5_DLL herr_t H5CX_get_dcr_offset(hsize_t **direct_offset);
-H5_DLL herr_t H5CX_get_dcw_flag(hbool_t *direct_write);
-H5_DLL herr_t H5CX_get_dcw_filters(uint32_t *direct_filters);
-H5_DLL herr_t H5CX_get_dcw_offset(hsize_t **direct_offset);
-H5_DLL herr_t H5CX_get_dcw_datasize(uint32_t *direct_datasize);
 H5_DLL herr_t H5CX_get_dt_conv_cb(H5T_conv_cb_t *cb_struct);
 
 /* "Getter" routines for LAPL properties cached in API context */
@@ -127,7 +121,6 @@ H5_DLL herr_t H5CX_set_vlen_alloc_info(H5MM_allocate_t alloc_func,
 H5_DLL herr_t H5CX_set_nlinks(size_t nlinks);
 
 /* "Setter" routines for cached DXPL properties that must be returned to application */
-H5_DLL void H5CX_set_dcr_filters(uint32_t direct_filters);
 #ifdef H5_HAVE_PARALLEL
 H5_DLL void H5CX_set_mpio_actual_chunk_opt(H5D_mpio_actual_chunk_opt_mode_t chunk_opt);
 H5_DLL void H5CX_set_mpio_actual_io_mode(H5D_mpio_actual_io_mode_t actual_io_mode);
diff --git a/src/H5Dio.c b/src/H5Dio.c
index 1566b5e..452105e 100644
--- a/src/H5Dio.c
+++ b/src/H5Dio.c
@@ -50,7 +50,8 @@
 /* Local Prototypes */
 /********************/
 
-/* Setup/teardown routines */
+static herr_t H5D__get_offset_copy(const H5D_t *dset, const hsize_t *offset,
+        hsize_t *offset_copy/*out*/);
 static herr_t H5D__ioinfo_init(H5D_t *dset, const H5D_type_info_t *type_info,
     H5D_storage_t *store, H5D_io_info_t *io_info);
 static herr_t H5D__typeinfo_init(const H5D_t *dset, hid_t mem_type_id,
@@ -80,32 +81,81 @@ H5FL_DEFINE(H5D_chunk_map_t);
 
 
 /*-------------------------------------------------------------------------
+ * Function:    H5D__get_offset_copy
+ *
+ * Purpose:     Gets a copy of the user's offset array that is guaraneteed
+ *              to be suitable for use by the library.
+ *
+ * Return:      SUCCEED/FAIL
+ *
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5D__get_offset_copy(const H5D_t *dset, const hsize_t *offset, hsize_t *offset_copy)
+{
+    unsigned u;
+    herr_t ret_value = SUCCEED;     /* Return value */
+
+    FUNC_ENTER_NOAPI(FAIL)
+
+    HDassert(dset);
+    HDassert(offset);
+    HDassert(offset_copy);
+
+
+    /* The library's chunking code requires the offset to terminate with a zero.
+     * So transfer the offset array to an internal offset array that we
+     * can properly terminate (handled via the calloc call).
+     */
+
+    HDmemset(offset_copy, 0, H5O_LAYOUT_NDIMS * sizeof(hsize_t));
+
+    for (u = 0; u < dset->shared->ndims; u++) {
+        /* Make sure the offset doesn't exceed the dataset's dimensions */
+        if (offset[u] > dset->shared->curr_dims[u])
+            HGOTO_ERROR(H5E_DATASPACE, H5E_BADTYPE, FAIL, "offset exceeds dimensions of dataset")
+
+        /* Make sure the offset fall right on a chunk's boundary */
+        if (offset[u] % dset->shared->layout.u.chunk.dim[u])
+            HGOTO_ERROR(H5E_DATASPACE, H5E_BADTYPE, FAIL, "offset doesn't fall on chunks's boundary")
+
+        offset_copy[u] = offset[u];
+    }
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value)
+
+} /* end H5D__get_offset_copy() */
+
+
+
+/*-------------------------------------------------------------------------
  * Function:	H5Dread
  *
- * Purpose:	Reads (part of) a DSET from the file into application
- *		memory BUF. The part of the dataset to read is defined with
- *		MEM_SPACE_ID and FILE_SPACE_ID.	 The data points are
- *		converted from their file type to the MEM_TYPE_ID specified.
- *		Additional miscellaneous data transfer properties can be
- *		passed to this function with the PLIST_ID argument.
+ * Purpose:     Reads (part of) a DSET from the file into application
+ *              memory BUF. The part of the dataset to read is defined with
+ *              MEM_SPACE_ID and FILE_SPACE_ID.	 The data points are
+ *              converted from their file type to the MEM_TYPE_ID specified.
+ *              Additional miscellaneous data transfer properties can be
+ *              passed to this function with the PLIST_ID argument.
  *
- *		The FILE_SPACE_ID can be the constant H5S_ALL which indicates
- *		that the entire file dataspace is to be referenced.
+ *              The FILE_SPACE_ID can be the constant H5S_ALL which indicates
+ *              that the entire file dataspace is to be referenced.
  *
- *		The MEM_SPACE_ID can be the constant H5S_ALL in which case
- *		the memory dataspace is the same as the file dataspace
- *		defined when the dataset was created.
+ *              The MEM_SPACE_ID can be the constant H5S_ALL in which case
+ *              the memory dataspace is the same as the file dataspace
+ *              defined when the dataset was created.
  *
- *		The number of elements in the memory dataspace must match
- *		the number of elements in the file dataspace.
+ *              The number of elements in the memory dataspace must match
+ *              the number of elements in the file dataspace.
  *
- *		The PLIST_ID can be the constant H5P_DEFAULT in which
- *		case the default data transfer properties are used.
+ *              The PLIST_ID can be the constant H5P_DEFAULT in which
+ *              case the default data transfer properties are used.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:      Non-negative on success/Negative on failure
  *
- * Programmer:	Robb Matzke
- *		Thursday, December  4, 1997
+ * Programmer:  Robb Matzke
+ *              Thursday, December 4, 1997
  *
  *-------------------------------------------------------------------------
  */
@@ -113,135 +163,136 @@ herr_t
 H5Dread(hid_t dset_id, hid_t mem_type_id, hid_t mem_space_id,
     hid_t file_space_id, hid_t dxpl_id, void *buf/*out*/)
 {
-    H5D_t	    *dset = NULL;
-    const H5S_t	    *mem_space = NULL;
-    const H5S_t	    *file_space = NULL;
-    hbool_t         direct_read = FALSE;
-    herr_t          ret_value = SUCCEED;    /* Return value */
+    H5D_t	       *dset        = NULL;
+    const H5S_t	   *mem_space   = NULL;
+    const H5S_t	   *file_space  = NULL;
+    herr_t          ret_value   = SUCCEED;      /* Return value */
 
     FUNC_ENTER_API(FAIL)
     H5TRACE6("e", "iiiiix", dset_id, mem_type_id, mem_space_id, file_space_id,
              dxpl_id, buf);
 
-    /* check arguments */
-    if(NULL == (dset = (H5D_t *)H5I_object_verify(dset_id, H5I_DATASET)))
-        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataset")
-    if(NULL == dset->oloc.file)
-        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataset")
+    /* Get dataset pointer */
+    if (NULL == (dset = (H5D_t *)H5I_object_verify(dset_id, H5I_DATASET)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "dset_id is not a dataset ID")
+    if (NULL == dset->oloc.file)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "dataset is not associated with a file")
 
-    if(mem_space_id < 0 || file_space_id < 0)
-        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataspace")
+    /* Get validated dataspace pointers */
+    if (H5S_get_validated_dataspace(mem_space_id, &mem_space) < 0)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "could not get a validated dataspace from mem_space_id")
+    if (H5S_get_validated_dataspace(file_space_id, &file_space) < 0)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "could not get a validated dataspace from file_space_id")
 
-    if(H5S_ALL != mem_space_id) {
-	if(NULL == (mem_space = (const H5S_t *)H5I_object_verify(mem_space_id, H5I_DATASPACE)))
-	    HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataspace")
+    /* Get the default dataset transfer property list if the user didn't provide one */
+    if (H5P_DEFAULT == dxpl_id)
+        dxpl_id = H5P_DATASET_XFER_DEFAULT;
+    else
+        if (TRUE != H5P_isa_class(dxpl_id, H5P_DATASET_XFER))
+            HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not xfer parms")
 
-        /* Check for valid selection */
-        if(H5S_SELECT_VALID(mem_space) != TRUE)
-            HGOTO_ERROR(H5E_DATASPACE, H5E_BADRANGE, FAIL, "selection+offset not within extent")
-    } /* end if */
+    /* Set DXPL for operation */
+    H5CX_set_dxpl(dxpl_id);
 
-    if(H5S_ALL != file_space_id) {
-	if(NULL == (file_space = (const H5S_t *)H5I_object_verify(file_space_id, H5I_DATASPACE)))
-	    HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataspace")
+    /* Read raw data */
+    if (H5D__read(dset, mem_type_id, mem_space, file_space, buf/*out*/) < 0)
+        HGOTO_ERROR(H5E_DATASET, H5E_READERROR, FAIL, "can't read data")
 
-        /* Check for valid selection */
-        if(H5S_SELECT_VALID(file_space) != TRUE)
-            HGOTO_ERROR(H5E_DATASPACE, H5E_BADRANGE, FAIL, "selection+offset not within extent")
-    } /* end if */
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5Dread() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5Dread_chunk
+ *
+ * Purpose:     Reads an entire chunk from the file directly.
+ *
+ * Return:      Non-negative on success/Negative on failure
+ *
+ * Programmer:  Matthew Strong (GE Healthcare)
+ *              14 February 2016
+ *
+ *---------------------------------------------------------------------------
+ */
+herr_t
+H5Dread_chunk(hid_t dset_id, hid_t dxpl_id, const hsize_t *offset, uint32_t *filters,
+         void *buf)
+{
+    H5D_t      *dset = NULL;
+    hsize_t     offset_copy[H5O_LAYOUT_NDIMS];  /* Internal copy of chunk offset */
+    herr_t      ret_value = SUCCEED;            /* Return value */
+
+    FUNC_ENTER_API(FAIL)
+    H5TRACE5("e", "ii*h*Iu*x", dset_id, dxpl_id, offset, filters, buf);
+
+    /* Check arguments */
+    if (NULL == (dset = (H5D_t *)H5I_object_verify(dset_id, H5I_DATASET)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "dset_id is not a dataset ID")
+    if (NULL == dset->oloc.file)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "dataset is not associated with a file")
+    if (H5D_CHUNKED != dset->shared->layout.type)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a chunked dataset")
+    if (!buf)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "buf cannot be NULL")
+    if (!offset)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "offset cannot be NULL")
+    if (!filters)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "filters cannot be NULL")
 
     /* Get the default dataset transfer property list if the user didn't provide one */
-    if(H5P_DEFAULT == dxpl_id)
+    if (H5P_DEFAULT == dxpl_id)
         dxpl_id = H5P_DATASET_XFER_DEFAULT;
     else
-        if(TRUE != H5P_isa_class(dxpl_id, H5P_DATASET_XFER))
-            HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not xfer parms")
+        if (TRUE != H5P_isa_class(dxpl_id, H5P_DATASET_XFER))
+            HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "dxpl_id is not a dataset transfer property list ID")
 
     /* Set DXPL for operation */
     H5CX_set_dxpl(dxpl_id);
 
-    /* Retrieve the 'direct read' flag */
-    if(H5CX_get_dcr_flag(&direct_read) < 0)
-        HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "error getting flag for direct chunk read")
-
-    /* Set up for direct read of chunk, bypassing filters, etc. */
-    if(direct_read) {
-        hsize_t *direct_offset;         /* Chunk offset from calling routine */
-        hsize_t internal_offset[H5O_LAYOUT_NDIMS];      /* Internal copy of chunk offset */
-        uint32_t direct_filters = 0;    /* Filters for chunk */
-        unsigned u;                     /* Local index variable */
-
-        /* Sanity check */
-        if(H5D_CHUNKED != dset->shared->layout.type)
-            HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a chunked dataset")
-
-        /* Get the direct chunk offset */
-        if(H5CX_get_dcr_offset(&direct_offset) < 0)
-            HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "error getting offset for direct chunk read")
-        HDassert(direct_offset);
-
-        /* The library's chunking code requires the offset terminates with a zero. So transfer the
-         * offset array to an internal offset array */
-        for(u = 0; u < dset->shared->ndims; u++) {
-            /* Make sure the offset doesn't exceed the dataset's dimensions */
-            if(direct_offset[u] > dset->shared->curr_dims[u])
-                HGOTO_ERROR(H5E_DATASPACE, H5E_BADTYPE, FAIL, "offset exceeds dimensions of dataset")
-
-            /* Make sure the offset fall right on a chunk's boundary */
-            if(direct_offset[u] % dset->shared->layout.u.chunk.dim[u])
-                HGOTO_ERROR(H5E_DATASPACE, H5E_BADTYPE, FAIL, "offset doesn't fall on chunks's boundary")
-
-            internal_offset[u] = direct_offset[u];
-        } /* end for */
-
-        /* Terminate the offset with a zero */
-        internal_offset[dset->shared->ndims] = 0;
-
-        /* Read the raw chunk */
-        if(H5D__chunk_direct_read(dset, internal_offset, &direct_filters, buf) < 0)
-            HGOTO_ERROR(H5E_DATASET, H5E_READERROR, FAIL, "can't read chunk directly")
-
-        /* Set the chunk filter mask for application */
-        H5CX_set_dcr_filters(direct_filters);
-    } /* end if */
-    else
-        /* Read raw data */
-        if(H5D__read(dset, mem_type_id, mem_space, file_space, buf/*out*/) < 0)
-            HGOTO_ERROR(H5E_DATASET, H5E_READERROR, FAIL, "can't read data")
+    /* Copy the user's offset array so we can be sure it's terminated properly.
+     * (we don't want to mess with the user's buffer).
+     */
+    if (H5D__get_offset_copy(dset, offset, offset_copy) < 0)
+        HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "failure to copy offset array")
+
+    /* Read the raw chunk */
+    if (H5D__chunk_direct_read(dset, offset_copy, filters, buf) < 0)
+        HGOTO_ERROR(H5E_DATASET, H5E_READERROR, FAIL, "can't read unprocessed chunk data")
 
 done:
     FUNC_LEAVE_API(ret_value)
-} /* end H5Dread() */
+} /* end H5Dread_chunk() */
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Dwrite
+ * Function:    H5Dwrite
  *
- * Purpose:	Writes (part of) a DSET from application memory BUF to the
- *		file.  The part of the dataset to write is defined with the
- *		MEM_SPACE_ID and FILE_SPACE_ID arguments. The data points
- *		are converted from their current type (MEM_TYPE_ID) to their
- *		file datatype.	 Additional miscellaneous data transfer
- *		properties can be passed to this function with the
- *		PLIST_ID argument.
+ * Purpose:     Writes (part of) a DSET from application memory BUF to the
+ *              file. The part of the dataset to write is defined with the
+ *              MEM_SPACE_ID and FILE_SPACE_ID arguments. The data points
+ *              are converted from their current type (MEM_TYPE_ID) to their
+ *              file datatype. Additional miscellaneous data transfer
+ *              properties can be passed to this function with the
+ *              PLIST_ID argument.
  *
- *		The FILE_SPACE_ID can be the constant H5S_ALL which indicates
- *		that the entire file dataspace is to be referenced.
+ *              The FILE_SPACE_ID can be the constant H5S_ALL which indicates
+ *              that the entire file dataspace is to be referenced.
  *
- *		The MEM_SPACE_ID can be the constant H5S_ALL in which case
- *		the memory dataspace is the same as the file dataspace
- *		defined when the dataset was created.
+ *              The MEM_SPACE_ID can be the constant H5S_ALL in which case
+ *              the memory dataspace is the same as the file dataspace
+ *              defined when the dataset was created.
  *
- *		The number of elements in the memory dataspace must match
- *		the number of elements in the file dataspace.
+ *              The number of elements in the memory dataspace must match
+ *              the number of elements in the file dataspace.
  *
- *		The PLIST_ID can be the constant H5P_DEFAULT in which
- *		case the default data transfer properties are used.
+ *              The PLIST_ID can be the constant H5P_DEFAULT in which
+ *              case the default data transfer properties are used.
  *
- * Return:	Non-negative on success/Negative on failure
+ * Return:      Non-negative on success/Negative on failure
  *
- * Programmer:	Robb Matzke
- *		Thursday, December  4, 1997
+ * Programmer:  Robb Matzke
+ *              Thursday, December 4, 1997
  *
  *-------------------------------------------------------------------------
  */
@@ -249,61 +300,40 @@ herr_t
 H5Dwrite(hid_t dset_id, hid_t mem_type_id, hid_t mem_space_id,
     hid_t file_space_id, hid_t dxpl_id, const void *buf)
 {
-    H5D_t		   *dset = NULL;
+    H5D_t                  *dset = NULL;
     const H5S_t            *mem_space = NULL;
     const H5S_t            *file_space = NULL;
-    hbool_t                 direct_write = FALSE;
     herr_t                  ret_value = SUCCEED;  /* Return value */
 
     FUNC_ENTER_API(FAIL)
     H5TRACE6("e", "iiiii*x", dset_id, mem_type_id, mem_space_id, file_space_id,
              dxpl_id, buf);
 
-    /* check arguments */
-    if(NULL == (dset = (H5D_t *)H5I_object_verify(dset_id, H5I_DATASET)))
-	HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataset")
-    if(NULL == dset->oloc.file)
-	HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file")
+    /* Get dataset pointer and ensure it's associated with a file */
+    if (NULL == (dset = (H5D_t *)H5I_object_verify(dset_id, H5I_DATASET)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "dset_id is not a dataset ID")
+    if (NULL == dset->oloc.file)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "dataset is not associated with a file")
+
+    /* Get validated dataspace pointers */
+    if (H5S_get_validated_dataspace(mem_space_id, &mem_space) < 0)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "could not get a validated dataspace from mem_space_id")
+    if (H5S_get_validated_dataspace(file_space_id, &file_space) < 0)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "could not get a validated dataspace from file_space_id")
 
     /* Get the default dataset transfer property list if the user didn't provide one */
-    if(H5P_DEFAULT == dxpl_id)
+    if (H5P_DEFAULT == dxpl_id)
         dxpl_id = H5P_DATASET_XFER_DEFAULT;
     else
-        if(TRUE != H5P_isa_class(dxpl_id, H5P_DATASET_XFER))
+        if (TRUE != H5P_isa_class(dxpl_id, H5P_DATASET_XFER))
             HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not xfer parms")
 
     /* Set DXPL for operation */
     H5CX_set_dxpl(dxpl_id);
 
-    /* Retrieve the 'direct write' flag */
-    if(H5CX_get_dcw_flag(&direct_write) < 0)
-        HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "error getting flag for direct chunk read")
-
-    /* Check dataspace selections if this is not a direct write */
-    if(!direct_write) {
-        if(mem_space_id < 0 || file_space_id < 0)
-            HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataspace")
-
-        if(H5S_ALL != mem_space_id) {
-            if(NULL == (mem_space = (const H5S_t *)H5I_object_verify(mem_space_id, H5I_DATASPACE)))
-                HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataspace")
-
-            /* Check for valid selection */
-            if(H5S_SELECT_VALID(mem_space) != TRUE)
-                HGOTO_ERROR(H5E_DATASPACE, H5E_BADRANGE, FAIL, "memory selection+offset not within extent")
-        } /* end if */
-        if(H5S_ALL != file_space_id) {
-            if(NULL == (file_space = (const H5S_t *)H5I_object_verify(file_space_id, H5I_DATASPACE)))
-                HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataspace")
-
-	    /* Check for valid selection */
-	    if(H5S_SELECT_VALID(file_space) != TRUE)
-		HGOTO_ERROR(H5E_DATASPACE, H5E_BADRANGE, FAIL, "file selection+offset not within extent")
-	} /* end if */
-    } /* end if */
-
-    if(H5D__pre_write(dset, direct_write, mem_type_id, mem_space, file_space, buf) < 0) 
-        HGOTO_ERROR(H5E_DATASET, H5E_WRITEERROR, FAIL, "can't prepare for writing data")
+    /* Write the data */
+    if (H5D__write(dset, mem_type_id, mem_space, file_space, buf) < 0)
+        HGOTO_ERROR(H5E_DATASET, H5E_WRITEERROR, FAIL, "can't write data")
 
 done:
     FUNC_LEAVE_API(ret_value)
@@ -311,70 +341,71 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:    H5D__pre_write
+ * Function:    H5Dwrite_chunk
  *
- * Purpose:     Preparation for writing data.
+ * Purpose:     Writes an entire chunk to the file directly.	
  *
- * Return:      SUCCEED/FAIL
+ * Return:      Non-negative on success/Negative on failure
+ *
+ * Programmer:	Raymond Lu
+ *		        30 July 2012
  *
  *-------------------------------------------------------------------------
  */
 herr_t
-H5D__pre_write(H5D_t *dset, hbool_t direct_write, hid_t mem_type_id, 
-    const H5S_t *mem_space, const H5S_t *file_space, const void *buf)
+H5Dwrite_chunk(hid_t dset_id, hid_t dxpl_id, uint32_t filters, const hsize_t *offset, 
+         size_t data_size, const void *buf)
 {
-    herr_t                  ret_value = SUCCEED;  /* Return value */
+    H5D_t      *dset = NULL;
+    hsize_t     offset_copy[H5O_LAYOUT_NDIMS];  /* Internal copy of chunk offset */
+    uint32_t    data_size_32;                   /* Chunk data size (limited to 32-bits currently) */
+    herr_t      ret_value = SUCCEED;            /* Return value */
+    
+    FUNC_ENTER_API(FAIL)
+    H5TRACE6("e", "iiIu*hz*x", dset_id, dxpl_id, filters, offset, data_size, buf);
+
+    /* Check arguments */
+    if (NULL == (dset = (H5D_t *)H5I_object_verify(dset_id, H5I_DATASET)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid dataset ID")
+    if (NULL == dset->oloc.file)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "dataset is not associated with a file")
+    if (H5D_CHUNKED != dset->shared->layout.type)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a chunked dataset")
+    if (!buf)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "buf cannot be NULL")
+    if (!offset)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "offset cannot be NULL")
+    if (0 == data_size)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "data_size cannot be zero")
+
+    /* Make sure data size is less than 4 GiB */
+    data_size_32 = (uint32_t)data_size;
+    if (data_size != (size_t)data_size_32)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid data_size - chunks cannot be > 4 GiB")
 
-    FUNC_ENTER_PACKAGE_VOL
-
-    /* Direct chunk write */
-    if(direct_write) {
-        uint32_t direct_filters;
-        hsize_t *direct_offset;
-        uint32_t direct_datasize;
-        hsize_t  internal_offset[H5O_LAYOUT_NDIMS];
-        unsigned u;                 /* Local index variable */
-
-        if(H5D_CHUNKED != dset->shared->layout.type)
-            HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a chunked dataset")
-
-        /* Retrieve parameters for direct chunk write */
-        if(H5CX_get_dcw_filters(&direct_filters) < 0)
-            HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "error getting filter info for direct chunk write")
-        if(H5CX_get_dcw_offset(&direct_offset) < 0)
-            HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "error getting offset info for direct chunk write")
-        if(H5CX_get_dcw_datasize(&direct_datasize) < 0)
-            HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "error getting data size for direct chunk write")
-
-        /* The library's chunking code requires the offset terminates with a zero. So transfer the 
-         * offset array to an internal offset array */ 
-        for(u = 0; u < dset->shared->ndims; u++) {
-            /* Make sure the offset doesn't exceed the dataset's dimensions */
-            if(direct_offset[u] > dset->shared->curr_dims[u])
-                HGOTO_ERROR(H5E_DATASPACE, H5E_BADTYPE, FAIL, "offset exceeds dimensions of dataset")
-
-            /* Make sure the offset fall right on a chunk's boundary */
-            if(direct_offset[u] % dset->shared->layout.u.chunk.dim[u])
-                HGOTO_ERROR(H5E_DATASPACE, H5E_BADTYPE, FAIL, "offset doesn't fall on chunks's boundary")
-
-            internal_offset[u] = direct_offset[u]; 
-        } /* end for */
-	   
-	/* Terminate the offset with a zero */ 
-	internal_offset[dset->shared->ndims] = 0;
-
-	/* write raw data */
-	if(H5D__chunk_direct_write(dset, direct_filters, internal_offset, direct_datasize, buf) < 0)
-	    HGOTO_ERROR(H5E_DATASET, H5E_WRITEERROR, FAIL, "can't write chunk directly")
-    } /* end if */
+    /* Get the default dataset transfer property list if the user didn't provide one */
+    if (H5P_DEFAULT == dxpl_id)
+        dxpl_id = H5P_DATASET_XFER_DEFAULT;
     else
-        /* Normal write of raw data */
-        if(H5D__write(dset, mem_type_id, mem_space, file_space, buf) < 0)
-            HGOTO_ERROR(H5E_DATASET, H5E_WRITEERROR, FAIL, "can't write data")
+        if (TRUE != H5P_isa_class(dxpl_id, H5P_DATASET_XFER))
+            HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "dxpl_id is not a dataset transfer property list ID")
+
+    /* Set DXPL for operation */
+    H5CX_set_dxpl(dxpl_id);
+
+    /* Copy the user's offset array so we can be sure it's terminated properly.
+     * (we don't want to mess with the user's buffer).
+     */
+    if (H5D__get_offset_copy(dset, offset, offset_copy) < 0)
+        HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "failure to copy offset array")
+
+    /* Write chunk */
+    if (H5D__chunk_direct_write(dset, filters, offset_copy, data_size_32, buf) < 0)
+        HGOTO_ERROR(H5E_DATASET, H5E_WRITEERROR, FAIL, "can't write unprocessed chunk data")
 
 done:
-    FUNC_LEAVE_NOAPI_VOL(ret_value)
-} /* end H5D__pre_write() */
+    FUNC_LEAVE_API(ret_value)
+} /* end H5Dwrite_chunk() */
 
 
 /*-------------------------------------------------------------------------
@@ -400,7 +431,7 @@ H5D__read(H5D_t *dataset, hid_t mem_type_id, const H5S_t *mem_space,
     hbool_t type_info_init = FALSE;     /* Whether the datatype info has been initialized */
     H5S_t * projected_mem_space = NULL; /* If not NULL, ptr to dataspace containing a     */
                                         /* projection of the supplied mem_space to a new  */
-                                        /* dataspace with rank equal to that of          */
+                                        /* dataspace with rank equal to that of           */
                                         /* file_space.                                    */
                                         /*                                                */
                                         /* This field is only used if                     */
@@ -428,7 +459,7 @@ H5D__read(H5D_t *dataset, hid_t mem_type_id, const H5S_t *mem_space,
     if(!mem_space)
         mem_space = file_space;
     if((snelmts = H5S_GET_SELECT_NPOINTS(mem_space)) < 0)
-	HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "dst dataspace has invalid selection")
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "dst dataspace has invalid selection")
     H5_CHECKED_ASSIGN(nelmts, hsize_t, snelmts, hssize_t);
 
     /* Set up datatype info for operation */
@@ -612,7 +643,7 @@ H5D__write(H5D_t *dataset, hid_t mem_type_id, const H5S_t *mem_space,
     hbool_t type_info_init = FALSE;     /* Whether the datatype info has been initialized */
     H5S_t * projected_mem_space = NULL; /* If not NULL, ptr to dataspace containing a     */
                                         /* projection of the supplied mem_space to a new  */
-                                        /* dataspace with rank equal to that of          */
+                                        /* dataspace with rank equal to that of           */
                                         /* file_space.                                    */
                                         /*                                                */
                                         /* This field is only used if                     */
@@ -645,7 +676,7 @@ H5D__write(H5D_t *dataset, hid_t mem_type_id, const H5S_t *mem_space,
 
     /* Check if we are allowed to write to this file */
     if(0 == (H5F_INTENT(dataset->oloc.file) & H5F_ACC_RDWR))
-	HGOTO_ERROR(H5E_DATASET, H5E_WRITEERROR, FAIL, "no write intent on file")
+        HGOTO_ERROR(H5E_DATASET, H5E_WRITEERROR, FAIL, "no write intent on file")
 
     /* Set up datatype info for operation */
     if(H5D__typeinfo_init(dataset, mem_type_id, TRUE, &type_info) < 0)
@@ -691,12 +722,12 @@ H5D__write(H5D_t *dataset, hid_t mem_type_id, const H5S_t *mem_space,
         mem_space = file_space;
 
     if((snelmts = H5S_GET_SELECT_NPOINTS(mem_space)) < 0)
-	HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "src dataspace has invalid selection")
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "src dataspace has invalid selection")
     H5_CHECKED_ASSIGN(nelmts, hsize_t, snelmts, hssize_t);
 
     /* Make certain that the number of elements in each selection is the same */
     if(nelmts != (hsize_t)H5S_GET_SELECT_NPOINTS(file_space))
-	HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "src and dest dataspaces have different number of elements selected")
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "src and dest dataspaces have different number of elements selected")
 
     /* Check for a NULL buffer, after the H5S_ALL dataspace selection has been handled */
     if(NULL == buf) {
@@ -934,7 +965,7 @@ H5D__typeinfo_init(const H5D_t *dset, hid_t mem_type_id, hbool_t do_write,
 
     /* Get the memory & dataset datatypes */
     if(NULL == (type_info->mem_type = (const H5T_t *)H5I_object_verify(mem_type_id, H5I_DATATYPE)))
-	HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
     type_info->dset_type = dset->shared->type;
 
     if(do_write) {
@@ -959,11 +990,11 @@ H5D__typeinfo_init(const H5D_t *dset, hid_t mem_type_id, hbool_t do_write,
      * turns off background preservation.
      */
     if(NULL == (type_info->tpath = H5T_path_find(src_type, dst_type)))
-	HGOTO_ERROR(H5E_DATASET, H5E_UNSUPPORTED, FAIL, "unable to convert between src and dest datatype")
+        HGOTO_ERROR(H5E_DATASET, H5E_UNSUPPORTED, FAIL, "unable to convert between src and dest datatype")
 
     /* Retrieve info from API context */
     if(H5CX_get_data_transform(&data_transform) < 0)
-	HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get data transform info")
+        HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get data transform info")
 
     /* Precompute some useful information */
     type_info->src_type_size = H5T_get_size(src_type);
diff --git a/src/H5Dpkg.h b/src/H5Dpkg.h
index 126a3c0..b887b87 100644
--- a/src/H5Dpkg.h
+++ b/src/H5Dpkg.h
@@ -583,8 +583,6 @@ H5_DLL herr_t H5D__refresh(hid_t dset_id, H5D_t *dataset);
 H5_DLL herr_t H5D__format_convert(H5D_t *dataset);
 
 /* Internal I/O routines */
-H5_DLL herr_t H5D__pre_write(H5D_t *dset, hbool_t direct_write, hid_t mem_type_id,
-    const H5S_t *mem_space, const H5S_t *file_space, const void *buf);
 H5_DLL herr_t H5D__read(H5D_t *dataset, hid_t mem_type_id,
     const H5S_t *mem_space, const H5S_t *file_space, void *buf/*out*/);
 H5_DLL herr_t H5D__write(H5D_t *dataset, hid_t mem_type_id,
diff --git a/src/H5Dpublic.h b/src/H5Dpublic.h
index 790674a..a1ccda0 100644
--- a/src/H5Dpublic.h
+++ b/src/H5Dpublic.h
@@ -35,17 +35,6 @@
 /* Bit flags for the H5Pset_chunk_opts() and H5Pget_chunk_opts() */
 #define H5D_CHUNK_DONT_FILTER_PARTIAL_CHUNKS      (0x0002u)
 
-/* Property names for H5DOwrite_chunk */   
-#define H5D_XFER_DIRECT_CHUNK_WRITE_FLAG_NAME	        "direct_chunk_flag"
-#define H5D_XFER_DIRECT_CHUNK_WRITE_FILTERS_NAME	"direct_chunk_filters"
-#define H5D_XFER_DIRECT_CHUNK_WRITE_OFFSET_NAME		"direct_chunk_offset"
-#define H5D_XFER_DIRECT_CHUNK_WRITE_DATASIZE_NAME	"direct_chunk_datasize"
-
-/* Property names for H5DOread_chunk */
-#define H5D_XFER_DIRECT_CHUNK_READ_FLAG_NAME        "direct_chunk_read_flag"
-#define H5D_XFER_DIRECT_CHUNK_READ_OFFSET_NAME      "direct_chunk_read_offset"
-#define H5D_XFER_DIRECT_CHUNK_READ_FILTERS_NAME     "direct_chunk_read_filters"
- 
 /*******************/
 /* Public Typedefs */
 /*******************/
@@ -157,6 +146,10 @@ H5_DLL herr_t H5Dread(hid_t dset_id, hid_t mem_type_id, hid_t mem_space_id,
 			hid_t file_space_id, hid_t plist_id, void *buf/*out*/);
 H5_DLL herr_t H5Dwrite(hid_t dset_id, hid_t mem_type_id, hid_t mem_space_id,
 			 hid_t file_space_id, hid_t plist_id, const void *buf);
+H5_DLL herr_t H5Dwrite_chunk(hid_t dset_id, hid_t dxpl_id, uint32_t filters, 
+            const hsize_t *offset, size_t data_size, const void *buf);
+H5_DLL herr_t H5Dread_chunk(hid_t dset_id, hid_t dxpl_id,
+            const hsize_t *offset, uint32_t *filters, void *buf);
 H5_DLL herr_t H5Diterate(void *buf, hid_t type_id, hid_t space_id,
             H5D_operator_t op, void *operator_data);
 H5_DLL herr_t H5Dvlen_reclaim(hid_t type_id, hid_t space_id, hid_t plist_id, void *buf);
@@ -185,7 +178,19 @@ H5_DLL herr_t H5Dget_chunk_index_type(hid_t did, H5D_chunk_index_t *idx_type);
 /* Macros */
 #define H5D_CHUNK_BTREE H5D_CHUNK_IDX_BTREE
 
-
+/* Formerly used to support the H5DOread/write_chunk() API calls.
+ * These symbols are no longer used in the library.
+ */
+/* Property names for H5DOwrite_chunk */
+#define H5D_XFER_DIRECT_CHUNK_WRITE_FLAG_NAME       "direct_chunk_flag"
+#define H5D_XFER_DIRECT_CHUNK_WRITE_FILTERS_NAME    "direct_chunk_filters"
+#define H5D_XFER_DIRECT_CHUNK_WRITE_OFFSET_NAME     "direct_chunk_offset"
+#define H5D_XFER_DIRECT_CHUNK_WRITE_DATASIZE_NAME   "direct_chunk_datasize"
+/* Property names for H5DOread_chunk */
+#define H5D_XFER_DIRECT_CHUNK_READ_FLAG_NAME        "direct_chunk_read_flag"
+#define H5D_XFER_DIRECT_CHUNK_READ_OFFSET_NAME      "direct_chunk_read_offset"
+#define H5D_XFER_DIRECT_CHUNK_READ_FILTERS_NAME     "direct_chunk_read_filters"
+ 
 /* Typedefs */
 
 
diff --git a/src/H5Gdeprec.c b/src/H5Gdeprec.c
index fc346f8..f6c6d8f 100644
--- a/src/H5Gdeprec.c
+++ b/src/H5Gdeprec.c
@@ -1118,7 +1118,7 @@ H5G__get_objinfo_cb(H5G_loc_t H5_ATTR_UNUSED *grp_loc/*in*/, const char *name, c
             /* Go retrieve the object information */
             /* (don't need index & heap info) */
             HDassert(obj_loc);
-            if(H5O_get_info(obj_loc->oloc, FALSE, &oinfo) < 0)
+            if(H5O_get_info(obj_loc->oloc, &oinfo, H5O_INFO_BASIC|H5O_INFO_TIME|H5O_INFO_HDR) < 0)
                 HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "unable to get object info")
 
             /* Get mapped object type */
diff --git a/src/H5Gloc.c b/src/H5Gloc.c
index 7273a89..f5a14a1 100644
--- a/src/H5Gloc.c
+++ b/src/H5Gloc.c
@@ -76,7 +76,7 @@ typedef struct {
 /* User data for getting an object's info in a group */
 typedef struct {
     /* downward */
-    hbool_t want_ih_info;       /* Whether to retrieve the index & heap info */
+    unsigned fields;            /* which fields in H5O_info_t struct to fill in */
 
     /* upward */
     H5O_info_t  *oinfo;         /* Object information to retrieve */
@@ -684,7 +684,7 @@ H5G_loc_info_cb(H5G_loc_t H5_ATTR_UNUSED *grp_loc/*in*/, const char H5_ATTR_UNUS
         HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, FAIL, "name doesn't exist")
 
     /* Query object information */
-    if(H5O_get_info(obj_loc->oloc, udata->want_ih_info, udata->oinfo) < 0)
+    if(H5O_get_info(obj_loc->oloc, udata->oinfo, udata->fields) < 0)
         HGOTO_ERROR(H5E_SYM, H5E_CANTGET, FAIL, "can't get object info")
 
 done:
@@ -710,7 +710,7 @@ done:
  *-------------------------------------------------------------------------
  */
 herr_t
-H5G_loc_info(const H5G_loc_t *loc, const char *name, hbool_t want_ih_info, H5O_info_t *oinfo/*out*/)
+H5G_loc_info(const H5G_loc_t *loc, const char *name, H5O_info_t *oinfo/*out*/, unsigned fields)
 {
     H5G_loc_info_t udata;               /* User data for traversal callback */
     herr_t ret_value = SUCCEED;         /* Return value */
@@ -723,7 +723,7 @@ H5G_loc_info(const H5G_loc_t *loc, const char *name, hbool_t want_ih_info, H5O_i
     HDassert(oinfo);
 
     /* Set up user data for locating object */
-    udata.want_ih_info = want_ih_info;
+    udata.fields = fields;
     udata.oinfo = oinfo;
 
     /* Traverse group hierarchy to locate object */
diff --git a/src/H5Gnode.c b/src/H5Gnode.c
index 2ae3d538..72b3633 100644
--- a/src/H5Gnode.c
+++ b/src/H5Gnode.c
@@ -1274,7 +1274,8 @@ H5G__node_copy(H5F_t *f, const void H5_ATTR_UNUSED *_lt_key, haddr_t addr,
                 HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, H5_ITER_ERROR, "unable to get link name")
 
             /* Check if the object pointed by the soft link exists in the source file */
-            if(H5G_loc_info(&grp_loc, link_name, FALSE, &oinfo) >= 0) {
+            /* Only basic information is needed */
+            if(H5G_loc_info(&grp_loc, link_name, &oinfo, H5O_INFO_BASIC) >= 0) {
                 tmp_src_ent.header = oinfo.addr;
                 src_ent = &tmp_src_ent;
             } /* end if */
diff --git a/src/H5Gprivate.h b/src/H5Gprivate.h
index 427f14b..95dfef5 100644
--- a/src/H5Gprivate.h
+++ b/src/H5Gprivate.h
@@ -277,7 +277,7 @@ H5_DLL herr_t H5G_loc_find_by_idx(const H5G_loc_t *loc, const char *group_name,
     H5G_loc_t *obj_loc/*out*/);
 H5_DLL htri_t H5G_loc_exists(const H5G_loc_t *loc, const char *name);
 H5_DLL herr_t H5G_loc_info(const H5G_loc_t *loc, const char *name,
-    hbool_t want_ih_info, H5O_info_t *oinfo/*out*/);
+    H5O_info_t *oinfo/*out*/, unsigned fields);
 H5_DLL herr_t H5G_loc_set_comment(const H5G_loc_t *loc, const char *name,
     const char *comment);
 H5_DLL ssize_t H5G_loc_get_comment(const H5G_loc_t *loc, const char *name,
diff --git a/src/H5I.c b/src/H5I.c
index 5117394..66082de 100644
--- a/src/H5I.c
+++ b/src/H5I.c
@@ -31,8 +31,8 @@
 #include "H5private.h"          /* Generic Functions                        */
 #include "H5ACprivate.h"        /* Metadata cache                           */
 #include "H5CXprivate.h"        /* API Contexts                             */
-#include "H5Eprivate.h"		/* Error handling                           */
-#include "H5FLprivate.h"	/* Free Lists                               */
+#include "H5Eprivate.h"		    /* Error handling                           */
+#include "H5FLprivate.h"	    /* Free Lists                               */
 #include "H5Ipkg.h"             /* IDs                                      */
 #include "H5MMprivate.h"        /* Memory management                        */
 #include "H5Oprivate.h"         /* Object headers                           */
@@ -738,10 +738,10 @@ H5I_register(H5I_type_t type, const void *object, hbool_t app_ref)
 
     /* Create the struct & its ID */
     new_id = H5I_MAKE(type, type_ptr->nextid);
-    id_ptr->id = new_id;
-    id_ptr->count = 1; /* initial reference count */
-    id_ptr->app_count = !!app_ref;
-    id_ptr->obj_ptr = object;
+    id_ptr->id          = new_id;
+    id_ptr->count       = 1; /* initial reference count */
+    id_ptr->app_count   = !!app_ref;
+    id_ptr->obj_ptr     = object;
 
     /* Insert into the type */
     if (H5SL_insert(type_ptr->ids, id_ptr, &id_ptr->id) < 0)
@@ -784,6 +784,7 @@ H5I_register_with_id(H5I_type_t type, const void *object, hbool_t app_ref, hid_t
     FUNC_ENTER_NOAPI(FAIL)
 
     /* Check arguments */
+    HDassert(object);
 
     /* Make sure ID is not already in use */
     if(NULL != (id_ptr = H5I__find_id(id)))
@@ -808,10 +809,10 @@ H5I_register_with_id(H5I_type_t type, const void *object, hbool_t app_ref, hid_t
         HGOTO_ERROR(H5E_ATOM, H5E_NOSPACE, FAIL, "memory allocation failed")
 
     /* Create the struct & insert requested ID */
-    id_ptr->id = id;
-    id_ptr->count = 1; /*initial reference count*/
-    id_ptr->app_count = !!app_ref;
-    id_ptr->obj_ptr = object;
+    id_ptr->id          = id;
+    id_ptr->count       = 1; /* initial reference count*/
+    id_ptr->app_count   = !!app_ref;
+    id_ptr->obj_ptr     = object;
 
     /* Insert into the type */
     if(H5SL_insert(type_ptr->ids, id_ptr, &id_ptr->id) < 0)
@@ -862,51 +863,45 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5I_object
+ * Function:    H5I_object
  *
- * Purpose:	Find an object pointer for the specified ID.
+ * Purpose:     Find an object pointer for the specified ID.
  *
- * Return:	Success:	Non-null object pointer associated with the
- *				specified ID.
- *		Failure:	NULL
+ * Return:      Success:    Non-null object pointer associated with the
+ *                          specified ID
  *
- * Programmer:	Unknown
+ *              Failure:    NULL
  *
  *-------------------------------------------------------------------------
  */
 void *
 H5I_object(hid_t id)
 {
-    H5I_id_info_t	*id_ptr;		/*ptr to the new atom	*/
-    void		*ret_value = NULL;	/*return value		*/
+    H5I_id_info_t	*id_ptr;            /* Pointer to the new atom  */
+    void		    *ret_value = NULL;  /* Return value             */
 
     FUNC_ENTER_NOAPI_NOERR
 
     /* General lookup of the ID */
     if(NULL != (id_ptr = H5I__find_id(id))) {
         /* Get the object pointer to return */
-        /* (Casting away const OK -QAK) */
-        ret_value = (void *)id_ptr->obj_ptr;
-    } /* end if */
+        ret_value = (void *)id_ptr->obj_ptr;        /* (Casting away const OK -QAK) */
+    }
 
     FUNC_LEAVE_NOAPI(ret_value)
 } /* end H5I_object() */
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Iobject_verify
- *
- * Purpose:	Find an object pointer for the specified ID, verifying that
- *                  its in a particular type.  Public interface to
- *					H5I_object_verify.
+ * Function:    H5Iobject_verify
  *
- * Return:	Success:	Non-null object pointer associated with the
- *				specified ID.
- *		Failure:	NULL
+ * Purpose:     Find an object pointer for the specified ID, verifying that
+ *              its in a particular type.  Public interface to
+ *              H5I_object_verify.
  *
- * Programmer:	Nathaniel Furrer
- *		James Laird
- *		Friday, April 23, 2004
+ * Return:      Success:    Non-null object pointer associated with the
+ *                          specified ID.
+ *              Failure:    NULL
  *
  *-------------------------------------------------------------------------
  */
@@ -932,14 +927,14 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5I_object_verify
+ * Function:    H5I_object_verify
  *
- * Purpose:	Find an object pointer for the specified ID, verifying that
- *                  its in a particular type.
+ * Purpose:     Find an object pointer for the specified ID, verifying that
+ *              its in a particular type.
  *
- * Return:	Success:	Non-null object pointer associated with the
- *				specified ID.
- *		Failure:	NULL
+ * Return:      Success:    Non-null object pointer associated with the
+ *                          specified ID.
+ *              Failure:    NULL
  *
  * Programmer:	Quincey Koziol
  *		Wednesday, July 31, 2002
@@ -949,8 +944,8 @@ done:
 void *
 H5I_object_verify(hid_t id, H5I_type_t id_type)
 {
-    H5I_id_info_t	*id_ptr = NULL;		/*ptr to the new atom	*/
-    void		*ret_value = NULL;	/*return value		*/
+    H5I_id_info_t  *id_ptr      = NULL;     /* Pointer to the new atom  */
+    void           *ret_value   = NULL;     /* Return value             */
 
     FUNC_ENTER_NOAPI_NOERR
 
@@ -959,9 +954,8 @@ H5I_object_verify(hid_t id, H5I_type_t id_type)
     /* Verify that the type of the ID is correct & lookup the ID */
     if(id_type == H5I_TYPE(id) && NULL != (id_ptr = H5I__find_id(id))) {
         /* Get the object pointer to return */
-        /* (Casting away const OK -QAK) */
-        ret_value = (void *)id_ptr->obj_ptr;
-    } /* end if */
+        ret_value = (void *)id_ptr->obj_ptr;        /* (Casting away const OK -QAK) */
+    }
 
     FUNC_LEAVE_NOAPI(ret_value)
 } /* H5I_object_verify() */
@@ -1867,8 +1861,8 @@ done:
  *              function, and then sets return value, based on the result of
  *              that callback.
  *
- * Return:      Success:    Non-negative on success
- *              Failure:    Negative
+ * Return:      Success:    H5_ITER_CONT (0) or H5_ITER_STOP (1)
+ *              Failure:    H5_ITER_ERROR (-1)
  *
  *-------------------------------------------------------------------------
  */
@@ -1925,8 +1919,8 @@ H5I__iterate_cb(void *_item, void H5_ATTR_UNUSED *_key, void *_udata)
 herr_t
 H5I_iterate(H5I_type_t type, H5I_search_func_t func, void *udata, hbool_t app_ref)
 {
-    H5I_id_type_t *type_ptr;		/*ptr to the type	*/
-    herr_t	   ret_value = SUCCEED;	/*return value		*/
+    H5I_id_type_t *type_ptr;            /* Pointer to the type  */
+    herr_t	   ret_value = SUCCEED;     /* Return value         */
 
     FUNC_ENTER_NOAPI(FAIL)
 
@@ -1941,9 +1935,9 @@ H5I_iterate(H5I_type_t type, H5I_search_func_t func, void *udata, hbool_t app_re
         herr_t iter_status;             /* Iteration status */
 
         /* Set up iterator user data */
-        iter_udata.user_func = func;
-        iter_udata.user_udata = udata;
-        iter_udata.app_ref = app_ref;
+        iter_udata.user_func    = func;
+        iter_udata.user_udata   = udata;
+        iter_udata.app_ref      = app_ref;
 
         /* Iterate over IDs */
         if ((iter_status = H5SL_iterate(type_ptr->ids, H5I__iterate_cb, &iter_udata)) < 0)
@@ -2020,16 +2014,16 @@ H5Iget_name(hid_t id, char *name/*out*/, size_t size)
     H5G_loc_t     loc;          /* Object location */
     ssize_t       ret_value;    /* Return value */
 
-    FUNC_ENTER_API(FAIL)
+    FUNC_ENTER_API((-1))
     H5TRACE3("Zs", "ixz", id, name, size);
 
     /* Get object location */
     if(H5G_loc(id, &loc) < 0)
-        HGOTO_ERROR(H5E_ATOM, H5E_CANTGET, FAIL, "can't retrieve object location")
+        HGOTO_ERROR(H5E_ATOM, H5E_CANTGET, (-1), "can't retrieve object location")
 
     /* Call internal routine to retrieve object's name */
     if((ret_value = H5I__get_name(&loc, name, size)) < 0)
-        HGOTO_ERROR(H5E_ATOM, H5E_CANTGET, FAIL, "can't retrieve object name")
+        HGOTO_ERROR(H5E_ATOM, H5E_CANTGET, (-1), "can't retrieve object name")
 
 done:
     FUNC_LEAVE_API(ret_value)
@@ -2047,15 +2041,15 @@ done:
  * Return:      Success:    The length of the name
  *              Failure:    -1
  *
- * Programmer:	Quincey Koziol
- *		January 9, 2018
+ * Programmer:  Quincey Koziol
+ *              January 9, 2018
  *
  *-------------------------------------------------------------------------
  */
 static ssize_t
 H5I__get_name(const H5G_loc_t *loc, char *name, size_t size)
 {
-    ssize_t ret_value = FAIL;   /* Return value */
+    ssize_t ret_value = -1;     /* Return value */
 
     FUNC_ENTER_STATIC_VOL
 
@@ -2064,7 +2058,7 @@ H5I__get_name(const H5G_loc_t *loc, char *name, size_t size)
 
     /* Retrieve object's name */
     if((ret_value = H5G_get_name(loc, name, size, NULL)) < 0)
-        HGOTO_ERROR(H5E_ATOM, H5E_CANTGET, FAIL, "can't retrieve object name")
+        HGOTO_ERROR(H5E_ATOM, H5E_CANTGET, (-1), "can't retrieve object name")
 
 done:
     FUNC_LEAVE_NOAPI_VOL(ret_value)
@@ -2086,7 +2080,7 @@ done:
 hid_t
 H5Iget_file_id(hid_t obj_id)
 {
-    hid_t ret_value = H5I_INVALID_HID;          /* Return value */
+    hid_t           ret_value   = H5I_INVALID_HID;  /* Return value */
 
     FUNC_ENTER_API(FAIL)
     H5TRACE1("i", "i", obj_id);
diff --git a/src/H5Ipkg.h b/src/H5Ipkg.h
index 16d7d67..2c1d81f 100644
--- a/src/H5Ipkg.h
+++ b/src/H5Ipkg.h
@@ -67,7 +67,7 @@
 
 /* Testing functions */
 #ifdef H5I_TESTING
-H5_DLL ssize_t H5I_get_name_test(hid_t id, char *name/*out*/, size_t size,
+H5_DLL ssize_t H5I__get_name_test(hid_t id, char *name/*out*/, size_t size,
     hbool_t *cached);
 #endif /* H5I_TESTING */
 
diff --git a/src/H5Itest.c b/src/H5Itest.c
index 426c026..4b54835 100644
--- a/src/H5Itest.c
+++ b/src/H5Itest.c
@@ -28,12 +28,12 @@
 /***********/
 /* Headers */
 /***********/
-#include "H5private.h"		/* Generic Functions			*/
-#include "H5ACprivate.h"        /* Metadata cache                       */
-#include "H5CXprivate.h"        /* API Contexts                         */
-#include "H5Eprivate.h"		/* Error handling		  	*/
-#include "H5Gprivate.h"		/* Groups				*/
-#include "H5Ipkg.h"		/* IDs			  		*/
+#include "H5private.h"          /* Generic Functions                        */
+#include "H5ACprivate.h"        /* Metadata cache                           */
+#include "H5CXprivate.h"        /* API Contexts                             */
+#include "H5Eprivate.h"         /* Error handling                           */
+#include "H5Gprivate.h"         /* Groups                                   */
+#include "H5Ipkg.h"             /* IDs                                      */
 
 
 /****************/
@@ -63,44 +63,44 @@
 
 
 /*-------------------------------------------------------------------------
- * Function: H5I_get_name_test
+ * Function:    H5I__get_name_test
  *
- * Purpose: Testing version of H5Iget_name()
+ * Purpose:     Testing version of H5Iget_name()
  *
- * Return: Success: The length of name.
- *         Failure: -1
+ * Return:      Success: The length of name.
+ *              Failure: -1
  *
- * Programmer:	Quincey Koziol
+ * Programmer:  Quincey Koziol
  *              Tuesday, July 27, 2010
  *
  *-------------------------------------------------------------------------
  */
 ssize_t
-H5I_get_name_test(hid_t id, char *name/*out*/, size_t size, hbool_t *cached)
+H5I__get_name_test(hid_t id, char *name/*out*/, size_t size, hbool_t *cached)
 {
-    H5G_loc_t     loc;          /* Object location */
-    hbool_t     api_ctx_pushed = FALSE;             /* Whether API context pushed */
-    ssize_t       ret_value = -1;       /* Return value */
+    H5G_loc_t   loc;                    /* Object location */
+    hbool_t     api_ctx_pushed = FALSE; /* Whether API context pushed */
+    ssize_t     ret_value = -1;         /* Return value */
 
-    FUNC_ENTER_NOAPI(FAIL)
+    FUNC_ENTER_PACKAGE
 
     /* Get object location */
     if(H5G_loc(id, &loc) < 0)
-	HGOTO_ERROR(H5E_ATOM, H5E_CANTGET, FAIL, "can't retrieve object location")
+        HGOTO_ERROR(H5E_ATOM, H5E_CANTGET, (-1), "can't retrieve object location")
 
     /* Set API context */
     if(H5CX_push() < 0)
-        HGOTO_ERROR(H5E_SYM, H5E_CANTSET, FAIL, "can't set API context")
+        HGOTO_ERROR(H5E_SYM, H5E_CANTSET, (-1), "can't set API context")
     api_ctx_pushed = TRUE;
 
     /* Call internal group routine to retrieve object's name */
     if((ret_value = H5G_get_name(&loc, name, size, cached)) < 0)
-	HGOTO_ERROR(H5E_ATOM, H5E_CANTGET, FAIL, "can't retrieve object name")
+        HGOTO_ERROR(H5E_ATOM, H5E_CANTGET, (-1), "can't retrieve object name")
 
 done:
     if(api_ctx_pushed && H5CX_pop() < 0)
-        HDONE_ERROR(H5E_SYM, H5E_CANTRESET, FAIL, "can't reset API context")
+        HDONE_ERROR(H5E_SYM, H5E_CANTRESET, (-1), "can't reset API context")
 
     FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5I_get_name_test() */
+} /* end H5I__get_name_test() */
 
diff --git a/src/H5MF.c b/src/H5MF.c
index 59ee1fc..64e91c8 100644
--- a/src/H5MF.c
+++ b/src/H5MF.c
@@ -97,6 +97,9 @@ static herr_t H5MF__close_fstype(H5F_t *f, H5F_mem_page_t type);
 static herr_t H5MF__delete_fstype(H5F_t *f, H5F_mem_page_t type);
 static herr_t H5MF__close_delete_fstype(H5F_t *f, H5F_mem_page_t type);
 
+/* Callbacks */
+static herr_t H5MF__sects_cb(H5FS_section_info_t *_sect, void *_udata);
+
 
 /*********************/
 /* Package Variables */
@@ -232,7 +235,7 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:    H5MF_alloc_to_fs_type
+ * Function:    H5MF__alloc_to_fs_type
  *
  * Purpose:     Map "alloc_type" to the free-space manager type
  *
@@ -244,9 +247,9 @@ done:
  *-------------------------------------------------------------------------
  */
 void
-H5MF_alloc_to_fs_type(H5F_t *f, H5FD_mem_t alloc_type, hsize_t size, H5F_mem_page_t *fs_type)
+H5MF__alloc_to_fs_type(H5F_t *f, H5FD_mem_t alloc_type, hsize_t size, H5F_mem_page_t *fs_type)
 {
-    FUNC_ENTER_NOAPI_NOINIT_NOERR
+    FUNC_ENTER_PACKAGE_NOERR
 
     HDassert(f);
     HDassert(fs_type);
@@ -271,7 +274,7 @@ H5MF_alloc_to_fs_type(H5F_t *f, H5FD_mem_t alloc_type, hsize_t size, H5F_mem_pag
         *fs_type = (H5F_mem_page_t)H5MF_ALLOC_TO_FS_AGGR_TYPE(f, alloc_type);
 
     FUNC_LEAVE_NOAPI_VOID
-} /* end H5MF_alloc_to_fs_type() */
+} /* end H5MF__alloc_to_fs_type() */
 
 
 /*-------------------------------------------------------------------------
@@ -379,10 +382,10 @@ H5MF__create_fstype(H5F_t *f, H5F_mem_page_t type)
         H5MF_FSPACE_SECT_CLS_LARGE };
     H5FS_create_t fs_create;    /* Free space creation parameters */
     hsize_t alignment;          /* Alignment to use */
-    hsize_t threshold;		/* Threshold to use */
+    hsize_t threshold;		    /* Threshold to use */
     H5AC_ring_t orig_ring = H5AC_RING_INV;  /* Original ring value */
-    H5AC_ring_t fsm_ring;       /* Ring of FSM */
-    herr_t ret_value = SUCCEED; /* Return value */
+    H5AC_ring_t fsm_ring;                   /* Ring of FSM */
+    herr_t ret_value = SUCCEED;             /* Return value */
 
     FUNC_ENTER_STATIC_TAG(H5AC__FREESPACE_TAG)
 
@@ -509,7 +512,7 @@ static herr_t
 H5MF__delete_fstype(H5F_t *f, H5F_mem_page_t type)
 {
     H5AC_ring_t orig_ring = H5AC_RING_INV;      /* Original ring value */
-    H5AC_ring_t fsm_ring;               /* Ring of FSM */
+    H5AC_ring_t fsm_ring = H5AC_RING_INV;       /* Ring of FSM */
     haddr_t tmp_fs_addr;       	        /* Temporary holder for free space manager address */
     herr_t ret_value = SUCCEED;	        /* Return value */
 
@@ -628,10 +631,10 @@ herr_t
 H5MF__add_sect(H5F_t *f, H5FD_mem_t alloc_type, H5FS_t *fspace, H5MF_free_section_t *node)
 {
     H5AC_ring_t orig_ring = H5AC_RING_INV;  /* Original ring value */
-    H5AC_ring_t fsm_ring;               /* Ring of FSM */
-    H5MF_sect_ud_t udata;		/* User data for callback */
-    H5F_mem_page_t  fs_type;            /* Free space type (mapped from allocation type) */
-    herr_t ret_value = SUCCEED; 	/* Return value */
+    H5AC_ring_t fsm_ring = H5AC_RING_INV;   /* Ring of FSM */
+    H5MF_sect_ud_t udata;		            /* User data for callback */
+    H5F_mem_page_t  fs_type;                /* Free space type (mapped from allocation type) */
+    herr_t ret_value = SUCCEED; 	        /* Return value */
 
     FUNC_ENTER_PACKAGE_TAG(H5AC__FREESPACE_TAG)
 
@@ -639,7 +642,7 @@ H5MF__add_sect(H5F_t *f, H5FD_mem_t alloc_type, H5FS_t *fspace, H5MF_free_sectio
     HDassert(fspace);
     HDassert(node);
 
-    H5MF_alloc_to_fs_type(f, alloc_type, node->sect_info.size, &fs_type);
+    H5MF__alloc_to_fs_type(f, alloc_type, node->sect_info.size, &fs_type);
 
     /* Construct user data for callbacks */
     udata.f = f;
@@ -688,7 +691,7 @@ H5MF__find_sect(H5F_t *f, H5FD_mem_t alloc_type, hsize_t size, H5FS_t *fspace,
     haddr_t *addr)
 {
     H5AC_ring_t orig_ring = H5AC_RING_INV;  /* Original ring value */
-    H5AC_ring_t fsm_ring;                   /* Ring of FSM */
+    H5AC_ring_t fsm_ring = H5AC_RING_INV;   /* Ring of FSM */
     H5MF_free_section_t *node;              /* Free space section pointer */
     htri_t ret_value = FAIL;      	    /* Whether an existing free list node was found */
 
@@ -728,7 +731,7 @@ HDfprintf(stderr, "%s: freeing node\n", FUNC);
 #endif /* H5MF_ALLOC_DEBUG_MORE */
 
             /* Free section node */
-            if(H5MF_sect_free((H5FS_section_info_t *)node) < 0)
+            if(H5MF__sect_free((H5FS_section_info_t *)node) < 0)
                 HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't free simple section node")
         } /* end if */
         else {
@@ -776,7 +779,7 @@ haddr_t
 H5MF_alloc(H5F_t *f, H5FD_mem_t alloc_type, hsize_t size)
 {
     H5AC_ring_t fsm_ring = H5AC_RING_INV;       /* free space manager ring */
-    H5AC_ring_t orig_ring;              /* Original ring value */
+    H5AC_ring_t orig_ring = H5AC_RING_INV;      /* Original ring value */
     H5F_mem_page_t  fs_type;            /* Free space type (mapped from allocation type) */
     haddr_t ret_value = HADDR_UNDEF;    /* Return value */
 
@@ -797,7 +800,7 @@ HDfprintf(stderr, "%s: alloc_type = %u, size = %Hu\n", FUNC, (unsigned)alloc_typ
             HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, HADDR_UNDEF, "tidy of self referential fsm hack failed")
     } /* end if */
 
-    H5MF_alloc_to_fs_type(f, alloc_type, size, &fs_type);
+    H5MF__alloc_to_fs_type(f, alloc_type, size, &fs_type);
 
 #ifdef H5MF_ALLOC_DEBUG_MORE
 HDfprintf(stderr, "%s: Check 1.0\n", FUNC);
@@ -862,7 +865,7 @@ done:
 HDfprintf(stderr, "%s: Leaving: ret_value = %a, size = %Hu\n", FUNC, ret_value, size);
 #endif /* H5MF_ALLOC_DEBUG */
 #ifdef H5MF_ALLOC_DEBUG_DUMP
-H5MF_sects_dump(f, stderr);
+H5MF__sects_dump(f, stderr);
 #endif /* H5MF_ALLOC_DEBUG_DUMP */
 
     FUNC_LEAVE_NOAPI_TAG(ret_value)
@@ -903,7 +906,7 @@ H5MF__alloc_pagefs(H5F_t *f, H5FD_mem_t alloc_type, hsize_t size)
 HDfprintf(stderr, "%s: alloc_type = %u, size = %Hu\n", FUNC, (unsigned)alloc_type, size);
 #endif /* H5MF_ALLOC_DEBUG */
 
-    H5MF_alloc_to_fs_type(f, alloc_type, size, &ptype);
+    H5MF__alloc_to_fs_type(f, alloc_type, size, &ptype);
 
     switch(ptype) {
 	    case H5F_MEM_PAGE_GENERIC:  
@@ -936,7 +939,7 @@ HDfprintf(stderr, "%s: alloc_type = %u, size = %Hu\n", FUNC, (unsigned)alloc_typ
                         HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, HADDR_UNDEF, "can't initialize file free space")
 
                 /* Create free space section for the fragment */
-                if(NULL == (node = H5MF_sect_new(H5MF_FSPACE_SECT_LARGE, ret_value + size, frag_size)))
+                if(NULL == (node = H5MF__sect_new(H5MF_FSPACE_SECT_LARGE, ret_value + size, frag_size)))
                     HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, HADDR_UNDEF, "can't initialize free space section")
 
                 /* Add the fragment to the large free-space manager */
@@ -967,7 +970,7 @@ HDfprintf(stderr, "%s: alloc_type = %u, size = %Hu\n", FUNC, (unsigned)alloc_typ
                     HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, HADDR_UNDEF, "can't initialize file free space")
             HDassert(f->shared->fs_man[ptype]);
 
-            if(NULL == (node = H5MF_sect_new(H5MF_FSPACE_SECT_SMALL, (new_page + size), (f->shared->fs_page_size - size))))
+            if(NULL == (node = H5MF__sect_new(H5MF_FSPACE_SECT_SMALL, (new_page + size), (f->shared->fs_page_size - size))))
                 HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, HADDR_UNDEF, "can't initialize free space section")
 
             /* Add the remaining space in the page to the manager */
@@ -997,12 +1000,12 @@ done:
 HDfprintf(stderr, "%s: Leaving: ret_value = %a, size = %Hu\n", FUNC, ret_value, size);
 #endif /* H5MF_ALLOC_DEBUG */
 #ifdef H5MF_ALLOC_DEBUG_DUMP
-H5MF_sects_dump(f, stderr);
+H5MF__sects_dump(f, stderr);
 #endif /* H5MF_ALLOC_DEBUG_DUMP */
 
     /* Release section node, if allocated and not added to section list or merged */
     if(node)
-        if(H5MF_sect_free((H5FS_section_info_t *)node) < 0)
+        if(H5MF__sect_free((H5FS_section_info_t *)node) < 0)
             HDONE_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, HADDR_UNDEF, "can't free section node")
 
     FUNC_LEAVE_NOAPI_TAG(ret_value)
@@ -1110,7 +1113,7 @@ HDfprintf(stderr, "%s: Entering - alloc_type = %u, addr = %a, size = %Hu\n", FUN
             HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, FAIL, "tidy of self referential fsm hack failed")
     } /* end if */
 
-    H5MF_alloc_to_fs_type(f, alloc_type, size, &fs_type);
+    H5MF__alloc_to_fs_type(f, alloc_type, size, &fs_type);
 
     /* Set the ring type in the API context */
     if(H5MF__fsm_type_is_self_referential(f, fs_type))
@@ -1197,7 +1200,7 @@ HDfprintf(stderr, "%s: dropping addr = %a, size = %Hu, on the floor!\n", FUNC, a
 
     /* Create the free-space section for the freed section */
     ctype = H5MF_SECT_CLASS_TYPE(f, size);
-    if(NULL == (node = H5MF_sect_new(ctype, addr, size)))
+    if(NULL == (node = H5MF__sect_new(ctype, addr, size)))
         HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't initialize free space section")
 
     /* If size of the freed section is larger than threshold, add it to the free space manager */
@@ -1242,14 +1245,14 @@ done:
 
     /* Release section node, if allocated and not added to section list or merged */
     if(node)
-        if(H5MF_sect_free((H5FS_section_info_t *)node) < 0)
+        if(H5MF__sect_free((H5FS_section_info_t *)node) < 0)
             HDONE_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't free simple section node")
 
 #ifdef H5MF_ALLOC_DEBUG
 HDfprintf(stderr, "%s: Leaving, ret_value = %d\n", FUNC, ret_value);
 #endif /* H5MF_ALLOC_DEBUG */
 #ifdef H5MF_ALLOC_DEBUG_DUMP
-H5MF_sects_dump(f, stderr);
+H5MF__sects_dump(f, stderr);
 #endif /* H5MF_ALLOC_DEBUG_DUMP */
     FUNC_LEAVE_NOAPI_TAG(ret_value)
 } /* end H5MF_xfree() */
@@ -1334,7 +1337,7 @@ HDfprintf(stderr, "%s: Entering: alloc_type = %u, addr = %a, size = %Hu, extra_r
     } /* end if */
 
     /* Get free space type from allocation type */
-    H5MF_alloc_to_fs_type(f, alloc_type, size, &fs_type);
+    H5MF__alloc_to_fs_type(f, alloc_type, size, &fs_type);
 
     /* Set the ring type in the API context */
     if(H5MF__fsm_type_is_self_referential(f, fs_type))
@@ -1365,7 +1368,7 @@ HDfprintf(stderr, "%s: extended = %t\n", FUNC, ret_value);
                     HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't initialize file free space")
 
             /* Create free space section for the fragment */
-            if(NULL == (node = H5MF_sect_new(H5MF_FSPACE_SECT_LARGE, end + extra_requested, frag_size)))
+            if(NULL == (node = H5MF__sect_new(H5MF_FSPACE_SECT_LARGE, end + extra_requested, frag_size)))
                 HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't initialize free space section")
 
             /* Add the fragment to the large-sized free-space manager */
@@ -1436,7 +1439,7 @@ done:
 HDfprintf(stderr, "%s: Leaving: ret_value = %t\n", FUNC, ret_value);
 #endif /* H5MF_ALLOC_DEBUG */
 #ifdef H5MF_ALLOC_DEBUG_DUMP
-H5MF_sects_dump(f, stderr);
+H5MF__sects_dump(f, stderr);
 #endif /* H5MF_ALLOC_DEBUG_DUMP */
 
     FUNC_LEAVE_NOAPI_TAG(ret_value)
@@ -1464,9 +1467,9 @@ H5MF_try_shrink(H5F_t *f, H5FD_mem_t alloc_type, haddr_t addr, hsize_t size)
     H5MF_sect_ud_t udata;               /* User data for callback */
     H5FS_section_class_t *sect_cls;	/* Section class */
     H5AC_ring_t orig_ring = H5AC_RING_INV;  /* Original ring value */
-    H5AC_ring_t fsm_ring;               /* Ring of FSM */
-    H5F_mem_page_t fs_type;             /* Free space type */
-    htri_t ret_value = FALSE;           /* Return value */
+    H5AC_ring_t fsm_ring = H5AC_RING_INV;   /* Ring of FSM */
+    H5F_mem_page_t fs_type;                 /* Free space type */
+    htri_t ret_value = FALSE;               /* Return value */
 
     FUNC_ENTER_NOAPI_TAG(H5AC__FREESPACE_TAG, FAIL)
 #ifdef H5MF_ALLOC_DEBUG
@@ -1485,7 +1488,7 @@ HDfprintf(stderr, "%s: Entering - alloc_type = %u, addr = %a, size = %Hu\n", FUN
     HDassert(sect_cls);
 
     /* Get free space type from allocation type */
-    H5MF_alloc_to_fs_type(f, alloc_type, size, &fs_type);
+    H5MF__alloc_to_fs_type(f, alloc_type, size, &fs_type);
 
     /* Set the ring type in the API context */
     if(H5MF__fsm_type_is_self_referential(f, fs_type))
@@ -1495,7 +1498,7 @@ HDfprintf(stderr, "%s: Entering - alloc_type = %u, addr = %a, size = %Hu\n", FUN
     H5AC_set_ring(fsm_ring, &orig_ring);
 
     /* Create free-space section for block */
-    if(NULL == (node = H5MF_sect_new(sect_cls->type, addr, size)))
+    if(NULL == (node = H5MF__sect_new(sect_cls->type, addr, size)))
         HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't initialize free space section")
 
     /* Construct user data for callbacks */
@@ -1522,7 +1525,7 @@ done:
         H5AC_set_ring(orig_ring, NULL);
 
     /* Free section node allocated */
-    if(node && H5MF_sect_free((H5FS_section_info_t *)node) < 0)
+    if(node && H5MF__sect_free((H5FS_section_info_t *)node) < 0)
         HDONE_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't free simple section node")
 
 #ifdef H5MF_ALLOC_DEBUG
@@ -1561,10 +1564,11 @@ HDfprintf(stderr, "%s: Entering\n", FUNC);
     if(H5F_PAGED_AGGR(f)) {
         if((ret_value = H5MF__close_pagefs(f)) < 0)
             HGOTO_ERROR(H5E_FILE, H5E_CANTFREE, FAIL, "can't close free-space managers for 'page' file space")
-    } /* end if */
-    else
+    }
+    else {
         if((ret_value = H5MF__close_aggrfs(f)) < 0)
             HGOTO_ERROR(H5E_FILE, H5E_CANTFREE, FAIL, "can't close free-space managers for 'aggr' file space")
+    }
 
 done:
 #ifdef H5MF_ALLOC_DEBUG
@@ -1650,8 +1654,8 @@ herr_t
 H5MF_try_close(H5F_t *f)
 {
     H5AC_ring_t orig_ring = H5AC_RING_INV;      /* Original ring value */
-    H5AC_ring_t curr_ring;              /* Current ring value */
-    H5AC_ring_t needed_ring;            /* Ring value needed for this iteration  */
+    H5AC_ring_t curr_ring = H5AC_RING_INV;      /* Current ring value */
+    H5AC_ring_t needed_ring = H5AC_RING_INV;    /* Ring value needed for this iteration */
     herr_t ret_value = SUCCEED;         /* Return value */
 
     FUNC_ENTER_NOAPI_TAG(H5AC__FREESPACE_TAG, FAIL)
@@ -1689,7 +1693,7 @@ HDfprintf(stderr, "%s: Entering\n", FUNC);
 
     /* Set the ring type in the API context.  In most cases, we will
      * need H5AC_RING_RDFSM, so initialy set the ring in
-     * the DXPL to that value.  We will alter this later if needed.
+     * the context to that value.  We will alter this later if needed.
      */
     H5AC_set_ring(H5AC_RING_RDFSM, &orig_ring);
     curr_ring = H5AC_RING_RDFSM;
@@ -1706,6 +1710,7 @@ HDfprintf(stderr, "%s: Entering\n", FUNC);
                 needed_ring = H5AC_RING_MDFSM;
             else
                 needed_ring = H5AC_RING_RDFSM;
+
             if(needed_ring != curr_ring ) {
                 H5AC_set_ring(needed_ring, NULL);
                 curr_ring = needed_ring;
@@ -1727,6 +1732,7 @@ HDfprintf(stderr, "%s: Entering\n", FUNC);
                 needed_ring = H5AC_RING_MDFSM;
             else
                 needed_ring = H5AC_RING_RDFSM;
+
             if(needed_ring != curr_ring) {
                 H5AC_set_ring(needed_ring, NULL);
                 curr_ring = needed_ring;
@@ -1765,10 +1771,10 @@ static herr_t
 H5MF__close_aggrfs(H5F_t *f)
 {
     H5AC_ring_t orig_ring = H5AC_RING_INV;      /* Original ring value */
-    H5AC_ring_t curr_ring;          /* Current ring value */
-    H5AC_ring_t needed_ring;        /* Ring value needed for this iteration.  */
+    H5AC_ring_t curr_ring = H5AC_RING_INV;      /* Current ring value */
+    H5AC_ring_t needed_ring = H5AC_RING_INV;    /* Ring value needed for this iteration.  */
     H5FD_mem_t type;          	    /* Memory type for iteration */
-    herr_t ret_value = SUCCEED;	    /* Return value */
+    herr_t ret_value = SUCCEED;     /* Return value */
 
     FUNC_ENTER_STATIC_TAG(H5AC__FREESPACE_TAG)
 #ifdef H5MF_ALLOC_DEBUG
@@ -1783,7 +1789,7 @@ HDfprintf(stderr, "%s: Entering\n", FUNC);
 
     /* Set the ring type in the API context.  In most cases, we will
      * need H5AC_RING_RDFSM, so initialy set the ring in
-     * the DXPL to that value.  We will alter this later if needed.
+     * the context to that value.  We will alter this later if needed.
      */
     H5AC_set_ring(H5AC_RING_RDFSM, &orig_ring);
     curr_ring = H5AC_RING_RDFSM;
@@ -1842,6 +1848,7 @@ HDfprintf(stderr, "%s: Entering\n", FUNC);
                     needed_ring = H5AC_RING_MDFSM;
                 else 
                     needed_ring = H5AC_RING_RDFSM;
+
                 if(needed_ring != curr_ring) {
                     H5AC_set_ring(needed_ring, NULL);
                     curr_ring = needed_ring;
@@ -1929,8 +1936,8 @@ static herr_t
 H5MF__close_pagefs(H5F_t *f)
 {
     H5AC_ring_t orig_ring = H5AC_RING_INV;      /* Original ring value */
-    H5AC_ring_t curr_ring;          /* Current ring value */
-    H5AC_ring_t needed_ring;        /* Ring value needed for this iteration.  */
+    H5AC_ring_t curr_ring = H5AC_RING_INV;      /* Current ring value */
+    H5AC_ring_t needed_ring = H5AC_RING_INV;    /* Ring value needed for this iteration.  */
     H5F_mem_page_t ptype; 	/* Memory type for iteration */
     H5O_fsinfo_t fsinfo;	/* File space info message */
     herr_t ret_value = SUCCEED;	/* Return value */
@@ -1950,7 +1957,7 @@ HDfprintf(stderr, "%s: Entering\n", FUNC);
 
     /* Set the ring type in the API context.  In most cases, we will
      * need H5AC_RING_RDFSM, so initialy set the ring in
-     * the DXPL to that value.  We will alter this later if needed.
+     * the context to that value.  We will alter this later if needed.
      */
     H5AC_set_ring(H5AC_RING_RDFSM, &orig_ring);
     curr_ring = H5AC_RING_RDFSM;
@@ -2005,6 +2012,7 @@ HDfprintf(stderr, "%s: Entering\n", FUNC);
                     needed_ring = H5AC_RING_MDFSM;
                 else
                     needed_ring = H5AC_RING_RDFSM;
+
                 if(needed_ring != curr_ring) {
                     H5AC_set_ring(needed_ring, NULL);
                     curr_ring = needed_ring;
@@ -2102,8 +2110,8 @@ static herr_t
 H5MF__close_shrink_eoa(H5F_t *f)
 {
     H5AC_ring_t orig_ring = H5AC_RING_INV;      /* Original ring value */
-    H5AC_ring_t curr_ring;      /* Current ring value */
-    H5AC_ring_t needed_ring;    /* Ring value needed for this iteration.  */
+    H5AC_ring_t curr_ring = H5AC_RING_INV;      /* Current ring value */
+    H5AC_ring_t needed_ring = H5AC_RING_INV;    /* Ring value needed for this iteration.  */
     H5F_mem_t type;
     H5F_mem_page_t ptype;       /* Memory type for iteration */
     hbool_t eoa_shrank;		/* Whether an EOA shrink occurs */
@@ -2139,6 +2147,7 @@ H5MF__close_shrink_eoa(H5F_t *f)
                         needed_ring = H5AC_RING_MDFSM;
                     else
                         needed_ring = H5AC_RING_RDFSM;
+
                     if(needed_ring != curr_ring) {
                         H5AC_set_ring(needed_ring, NULL);
                         curr_ring = needed_ring;
@@ -2162,6 +2171,7 @@ H5MF__close_shrink_eoa(H5F_t *f)
                         needed_ring = H5AC_RING_MDFSM;
                     else
                         needed_ring = H5AC_RING_RDFSM;
+
                     if(needed_ring != curr_ring) {
                         H5AC_set_ring(needed_ring, NULL);
                         curr_ring = needed_ring;
@@ -2222,9 +2232,9 @@ H5MF_get_freespace(H5F_t *f, hsize_t *tot_space, hsize_t *meta_size)
     htri_t fs_started[H5F_MEM_PAGE_NTYPES]; /* Indicate whether the free-space manager has been started */
     haddr_t fs_eoa[H5FD_MEM_NTYPES];        /* EAO for each free-space manager */
     H5AC_ring_t orig_ring = H5AC_RING_INV;  /* Original ring value */
-    H5AC_ring_t curr_ring;          /* Current ring value */
-    H5AC_ring_t needed_ring;        /* Ring value needed for this iteration.  */
-    herr_t ret_value = SUCCEED;     /* Return value */
+    H5AC_ring_t curr_ring = H5AC_RING_INV;      /* Current ring value */
+    H5AC_ring_t needed_ring = H5AC_RING_INV;    /* Ring value needed for this iteration.  */
+    herr_t ret_value = SUCCEED;             /* Return value */
 
     FUNC_ENTER_NOAPI_TAG(H5AC__FREESPACE_TAG, FAIL)
 
@@ -2235,7 +2245,7 @@ H5MF_get_freespace(H5F_t *f, hsize_t *tot_space, hsize_t *meta_size)
 
     /* Set the ring type in the API context.  In most cases, we will
      * need H5AC_RING_RDFSM, so initialy set the ring in
-     * the DXPL to that value.  We will alter this later if needed.
+     * the context to that value.  We will alter this later if needed.
      */
     H5AC_set_ring(H5AC_RING_RDFSM, &orig_ring);
     curr_ring = H5AC_RING_RDFSM;
@@ -2256,11 +2266,11 @@ H5MF_get_freespace(H5F_t *f, hsize_t *tot_space, hsize_t *meta_size)
 
     if(!H5F_PAGED_AGGR(f)) {
         /* Retrieve metadata aggregator info, if available */
-        if(H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size) < 0)
+        if(H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size) < 0)
             HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "can't query metadata aggregator stats")
 
         /* Retrieve 'small data' aggregator info, if available */
-        if(H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sda_addr, &sda_size) < 0)
+        if(H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sda_addr, &sda_size) < 0)
             HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "can't query small data aggregator stats")
     } /* end if */
 
@@ -2342,7 +2352,8 @@ done:
  * Purpose: 	To retrieve free-space section information for
  *              paged or non-paged aggregation
  *
- * Return:      SUCCEED/FAIL
+ * Return:      Success:    Number of free sections
+ *              Failure:    -1
  *
  * Programmer:  Vailin Choi; Dec 2012
  *
@@ -2352,15 +2363,15 @@ ssize_t
 H5MF_get_free_sections(H5F_t *f, H5FD_mem_t type, size_t nsects, H5F_sect_info_t *sect_info)
 {
     H5AC_ring_t orig_ring = H5AC_RING_INV;      /* Original ring value */
-    H5AC_ring_t curr_ring;                      /* Current ring value */
-    H5AC_ring_t needed_ring;                    /* Ring value needed for this iteration.  */
+    H5AC_ring_t curr_ring = H5AC_RING_INV;      /* Current ring value */
+    H5AC_ring_t needed_ring = H5AC_RING_INV;    /* Ring value needed for this iteration.  */
     size_t total_sects = 0;                     /* Total number of sections */
     H5MF_sect_iter_ud_t sect_udata;             /* User data for callback */
     H5F_mem_page_t start_type, end_type;        /* Memory types to iterate over */
     H5F_mem_page_t ty;                          /* Memory type for iteration */
     ssize_t ret_value = -1;                     /* Return value */
 
-    FUNC_ENTER_NOAPI_TAG(H5AC__FREESPACE_TAG, FAIL)
+    FUNC_ENTER_NOAPI_TAG(H5AC__FREESPACE_TAG, (-1))
 
     /* check args */
     HDassert(f);
@@ -2382,11 +2393,11 @@ H5MF_get_free_sections(H5F_t *f, H5FD_mem_t type, size_t nsects, H5F_sect_info_t
     if(f->shared->first_alloc_dealloc) {
         if(H5AC_cache_image_pending(f)) {
             if(H5AC_force_cache_image_load(f) < 0)
-                HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, FAIL, "forced cache image load failed")
+                HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, (-1), "forced cache image load failed")
         } /* end if */
         else {
             if(H5MF_tidy_self_referential_fsm_hack(f) < 0)
-                HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, FAIL, "tidy of self referential fsm hack failed")
+                HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, (-1), "tidy of self referential fsm hack failed")
         } /* end else */
     } /* end if */
 
@@ -2409,7 +2420,7 @@ H5MF_get_free_sections(H5F_t *f, H5FD_mem_t type, size_t nsects, H5F_sect_info_t
 
     /* Set the ring type in the API context.  In most cases, we will
      * need H5AC_RING_RDFSM, so initialy set the ring in
-     * the DXPL to that value.  We will alter this later if needed.
+     * the context to that value.  We will alter this later if needed.
      */
     H5AC_set_ring(H5AC_RING_RDFSM, &orig_ring);
     curr_ring = H5AC_RING_RDFSM;
@@ -2431,7 +2442,7 @@ H5MF_get_free_sections(H5F_t *f, H5FD_mem_t type, size_t nsects, H5F_sect_info_t
 
         if(!f->shared->fs_man[ty] && H5F_addr_defined(f->shared->fs_addr[ty])) {
             if(H5MF__open_fstype(f, ty) < 0)
-                HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't open the free space manager")
+                HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, (-1), "can't open the free space manager")
             HDassert(f->shared->fs_man[ty]);
             fs_started = TRUE;
         } /* end if */
@@ -2439,7 +2450,7 @@ H5MF_get_free_sections(H5F_t *f, H5FD_mem_t type, size_t nsects, H5F_sect_info_t
         /* Check if there's free space sections of this type */
         if(f->shared->fs_man[ty])
             if(H5MF__get_free_sects(f, f->shared->fs_man[ty], &sect_udata, &nums) < 0)
-                HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't get section info for the free space manager")
+                HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, (-1), "can't get section info for the free space manager")
 
         /* Increment total # of sections */
         total_sects += nums;
@@ -2447,7 +2458,7 @@ H5MF_get_free_sections(H5F_t *f, H5FD_mem_t type, size_t nsects, H5F_sect_info_t
         /* Close the free space manager of this type, if we started it here */
         if(fs_started)
             if(H5MF__close_fstype(f, ty) < 0)
-                HGOTO_ERROR(H5E_RESOURCE, H5E_CANTCLOSEOBJ, FAIL, "can't close file free space")
+                HGOTO_ERROR(H5E_RESOURCE, H5E_CANTCLOSEOBJ, (-1), "can't close file free space")
         if((H5F_PAGED_AGGR(f)) && (type != H5FD_MEM_DEFAULT))
             ty = (H5F_mem_page_t)(ty + H5FD_MEM_NTYPES - 2);
     } /* end for */
@@ -2465,7 +2476,7 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:    H5MF_sects_cb()
+ * Function:    H5MF__sects_cb()
  *
  * Purpose:	Iterator callback for each free-space section
  *          Retrieve address and size into user data
@@ -2478,12 +2489,12 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5MF_sects_cb(H5FS_section_info_t *_sect, void *_udata)
+H5MF__sects_cb(H5FS_section_info_t *_sect, void *_udata)
 {
     H5MF_free_section_t *sect = (H5MF_free_section_t *)_sect;
     H5MF_sect_iter_ud_t *udata = (H5MF_sect_iter_ud_t *)_udata;
 
-    FUNC_ENTER_NOAPI_NOINIT_NOERR
+    FUNC_ENTER_STATIC_NOERR
 
     if(udata->sect_idx < udata->sect_count) {
         udata->sects[udata->sect_idx].addr = sect->sect_info.addr;
@@ -2492,7 +2503,7 @@ H5MF_sects_cb(H5FS_section_info_t *_sect, void *_udata)
     } /* end if */
 
     FUNC_LEAVE_NOAPI(SUCCEED)
-} /* H5MF_sects_cb() */
+} /* H5MF__sects_cb() */
 
 
 /*-------------------------------------------------------------------------
@@ -2513,7 +2524,7 @@ H5MF__get_free_sects(H5F_t *f, H5FS_t *fspace, H5MF_sect_iter_ud_t *sect_udata,
     hsize_t hnums = 0;          	/* # of sections */
     herr_t ret_value = SUCCEED; 	/* Return value */
 
-    FUNC_ENTER_NOAPI(FAIL)
+    FUNC_ENTER_PACKAGE
 
     /* check args */
     HDassert(f);
@@ -2529,7 +2540,7 @@ H5MF__get_free_sects(H5F_t *f, H5FS_t *fspace, H5MF_sect_iter_ud_t *sect_udata,
     /* Check if we should retrieve the section info */
     if(sect_udata->sects && *nums > 0)
         /* Iterate over all the free space sections of this type, adding them to the user's section info */
-        if(H5FS_sect_iterate(f, fspace, H5MF_sects_cb, sect_udata) < 0)
+        if(H5FS_sect_iterate(f, fspace, H5MF__sects_cb, sect_udata) < 0)
             HGOTO_ERROR(H5E_RESOURCE, H5E_BADITER, FAIL, "can't iterate over sections")
 
 done:
@@ -2648,8 +2659,8 @@ H5MF_settle_raw_data_fsm(H5F_t *f, hbool_t *fsm_settled)
     H5O_fsinfo_t fsinfo;                /* Free space manager info message */
     H5FS_stat_t fs_stat;                /* Information for free-space manager */
     H5AC_ring_t orig_ring = H5AC_RING_INV;      /* Original ring value */
-    H5AC_ring_t curr_ring;              /* Current ring value */
-    H5AC_ring_t needed_ring;            /* Ring value needed for this iteration.  */
+    H5AC_ring_t curr_ring = H5AC_RING_INV;      /* Current ring value */
+    H5AC_ring_t needed_ring = H5AC_RING_INV;    /* Ring value needed for this iteration */
     herr_t ret_value = SUCCEED;         /* Return value */
 
     FUNC_ENTER_NOAPI_TAG(H5AC__FREESPACE_TAG, FAIL)
@@ -2744,7 +2755,7 @@ H5MF_settle_raw_data_fsm(H5F_t *f, hbool_t *fsm_settled)
                 break;
 
             for(mem_type = H5FD_MEM_SUPER; mem_type < H5FD_MEM_NTYPES; H5_INC_ENUM(H5F_mem_t, mem_type)) {
-                H5MF_alloc_to_fs_type(f, mem_type, alloc_size, &fsm_type);
+                H5MF__alloc_to_fs_type(f, mem_type, alloc_size, &fsm_type);
 
                 if(pass_count == 0) { /* this is the first pass */
                     HDassert(fsm_type > H5F_MEM_PAGE_DEFAULT);
@@ -2781,6 +2792,7 @@ H5MF_settle_raw_data_fsm(H5F_t *f, hbool_t *fsm_settled)
                              needed_ring = H5AC_RING_MDFSM;
                         else
                              needed_ring = H5AC_RING_RDFSM;
+
                         if(needed_ring != curr_ring) {
                             H5AC_set_ring(needed_ring, NULL);
                             curr_ring = needed_ring;
@@ -2888,7 +2900,7 @@ H5MF_settle_raw_data_fsm(H5F_t *f, hbool_t *fsm_settled)
                 break;
 
             for(mem_type = H5FD_MEM_SUPER; mem_type < H5FD_MEM_NTYPES; H5_INC_ENUM(H5F_mem_t, mem_type)) {
-                H5MF_alloc_to_fs_type(f, mem_type, alloc_size, &fsm_type);
+                H5MF__alloc_to_fs_type(f, mem_type, alloc_size, &fsm_type);
 
                 if(pass_count == 0) { /* this is the first pass */
                     HDassert(fsm_type > H5F_MEM_PAGE_DEFAULT);
@@ -2906,6 +2918,7 @@ H5MF_settle_raw_data_fsm(H5F_t *f, hbool_t *fsm_settled)
                     needed_ring = H5AC_RING_MDFSM;
                 else
                     needed_ring = H5AC_RING_RDFSM;
+
                 if(needed_ring != curr_ring) {
                     H5AC_set_ring(needed_ring, NULL);
                     curr_ring = needed_ring;
@@ -3136,8 +3149,8 @@ H5MF_settle_meta_data_fsm(H5F_t *f, hbool_t *fsm_settled)
         /* should only be called if file is opened R/W */
         HDassert(H5F_INTENT(f) & H5F_ACC_RDWR);
 
-        H5MF_alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, (size_t)1, &sm_fshdr_fs_type);
-        H5MF_alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, (size_t)1, &sm_fssinfo_fs_type);
+        H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, (size_t)1, &sm_fshdr_fs_type);
+        H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, (size_t)1, &sm_fssinfo_fs_type);
 
         HDassert(sm_fshdr_fs_type > H5F_MEM_PAGE_DEFAULT);
         HDassert(sm_fshdr_fs_type < H5F_MEM_PAGE_LARGE_SUPER);
@@ -3153,8 +3166,8 @@ H5MF_settle_meta_data_fsm(H5F_t *f, hbool_t *fsm_settled)
         sm_sinfo_fspace = f->shared->fs_man[sm_fssinfo_fs_type];
 
         if(H5F_PAGED_AGGR(f)) {
-            H5MF_alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, f->shared->fs_page_size + 1, &lg_fshdr_fs_type);
-            H5MF_alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, f->shared->fs_page_size + 1, &lg_fssinfo_fs_type);
+            H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, f->shared->fs_page_size + 1, &lg_fshdr_fs_type);
+            H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, f->shared->fs_page_size + 1, &lg_fssinfo_fs_type);
 
             HDassert(lg_fshdr_fs_type >= H5F_MEM_PAGE_LARGE_SUPER);
             HDassert(lg_fshdr_fs_type < H5F_MEM_PAGE_NTYPES);
@@ -3398,7 +3411,7 @@ H5MF__fsm_type_is_self_referential(H5F_t *f, H5F_mem_page_t fsm_type)
     H5F_mem_page_t lg_fssinfo_fsm;
     hbool_t result = FALSE;
 
-    FUNC_ENTER_NOAPI_NOINIT_NOERR
+    FUNC_ENTER_PACKAGE_NOERR
 
     /* Sanity check */
     HDassert(f);
@@ -3406,12 +3419,12 @@ H5MF__fsm_type_is_self_referential(H5F_t *f, H5F_mem_page_t fsm_type)
     HDassert(fsm_type >= H5F_MEM_PAGE_DEFAULT);
     HDassert(fsm_type < H5F_MEM_PAGE_NTYPES);
 
-    H5MF_alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, (size_t)1, &sm_fshdr_fsm);
-    H5MF_alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, (size_t)1, &sm_fssinfo_fsm);
+    H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, (size_t)1, &sm_fshdr_fsm);
+    H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, (size_t)1, &sm_fssinfo_fsm);
 
     if(H5F_PAGED_AGGR(f)) {
-        H5MF_alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, f->shared->fs_page_size + 1, &lg_fshdr_fsm);
-        H5MF_alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, f->shared->fs_page_size + 1, &lg_fssinfo_fsm);
+        H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, f->shared->fs_page_size + 1, &lg_fshdr_fsm);
+        H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, f->shared->fs_page_size + 1, &lg_fssinfo_fsm);
 
         result = (fsm_type == sm_fshdr_fsm) || (fsm_type == sm_fssinfo_fsm)
                 || (fsm_type == lg_fshdr_fsm) || (fsm_type == lg_fssinfo_fsm);
@@ -3460,15 +3473,15 @@ H5MF__fsm_is_self_referential(H5F_t *f, H5FS_t *fspace)
     HDassert(f->shared);
     HDassert(fspace);
 
-    H5MF_alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, (size_t)1, &sm_fshdr_fsm);
-    H5MF_alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, (size_t)1, &sm_fssinfo_fsm);
+    H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, (size_t)1, &sm_fshdr_fsm);
+    H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, (size_t)1, &sm_fssinfo_fsm);
 
     if(H5F_PAGED_AGGR(f)) {
         H5F_mem_page_t lg_fshdr_fsm;
         H5F_mem_page_t lg_fssinfo_fsm;
 
-        H5MF_alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, f->shared->fs_page_size + 1, &lg_fshdr_fsm);
-        H5MF_alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, f->shared->fs_page_size + 1, &lg_fssinfo_fsm);
+        H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, f->shared->fs_page_size + 1, &lg_fshdr_fsm);
+        H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, f->shared->fs_page_size + 1, &lg_fssinfo_fsm);
 
         result = (fspace == f->shared->fs_man[sm_fshdr_fsm]) ||
                    (fspace == f->shared->fs_man[sm_fssinfo_fsm]) ||
@@ -3609,8 +3622,8 @@ H5MF_tidy_self_referential_fsm_hack(H5F_t *f)
      *    this -- we can use the regular I/O methods even if 
      *    paged aggregation and page buffering is enabled.
      */
-    H5MF_alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, (size_t)1, &sm_fshdr_fs_type);
-    H5MF_alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, (size_t)1, &sm_fssinfo_fs_type);
+    H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, (size_t)1, &sm_fshdr_fs_type);
+    H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, (size_t)1, &sm_fssinfo_fs_type);
     HDassert(sm_fshdr_fs_type > H5F_MEM_PAGE_DEFAULT);
     HDassert(sm_fshdr_fs_type < H5F_MEM_PAGE_LARGE_SUPER);
 
@@ -3648,8 +3661,8 @@ H5MF_tidy_self_referential_fsm_hack(H5F_t *f)
     } /* end if */
 
     if(H5F_PAGED_AGGR(f)) {
-        H5MF_alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, f->shared->fs_page_size + 1, &lg_fshdr_fs_type);
-        H5MF_alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, f->shared->fs_page_size + 1, &lg_fssinfo_fs_type);
+        H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, f->shared->fs_page_size + 1, &lg_fshdr_fs_type);
+        H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, f->shared->fs_page_size + 1, &lg_fssinfo_fs_type);
 
         HDassert(lg_fshdr_fs_type >= H5F_MEM_PAGE_LARGE_SUPER);
         HDassert(lg_fshdr_fs_type < H5F_MEM_PAGE_NTYPES);
diff --git a/src/H5MFaggr.c b/src/H5MFaggr.c
index cd80a10..5ab1834 100644
--- a/src/H5MFaggr.c
+++ b/src/H5MFaggr.c
@@ -59,6 +59,8 @@ static herr_t H5MF__aggr_free(H5F_t *f, H5FD_mem_t type,
     H5F_blk_aggr_t *aggr);
 static haddr_t H5MF__aggr_alloc(H5F_t *f, H5F_blk_aggr_t *aggr,
     H5F_blk_aggr_t *other_aggr, H5FD_mem_t type, hsize_t size);
+static herr_t H5MF__aggr_reset(H5F_t *f, H5F_blk_aggr_t *aggr);
+static htri_t H5MF__aggr_can_shrink_eoa(H5F_t *f, H5FD_mem_t type, H5F_blk_aggr_t *aggr);
 
 
 /*********************/
@@ -179,7 +181,7 @@ HDfprintf(stderr, "%s: type = %u, size = %Hu\n", FUNC, (unsigned)type, size);
     /*
      * If the aggregation feature is enabled for this file and strategy is not H5F_FILE_SPACE_NONE,
      * allocate "generic" space and sub-allocate out of that, if possible.
-     * Otherwise just allocate through H5F_alloc().
+     * Otherwise just allocate through H5F__alloc().
      */
     if((f->shared->feature_flags & aggr->feature_flag) && f->shared->fs_strategy != H5F_FSPACE_STRATEGY_NONE) {
         haddr_t	aggr_frag_addr = HADDR_UNDEF;   /* Address of aggregrator fragment */
@@ -193,18 +195,18 @@ HDfprintf(stderr, "%s: aggr = {%a, %Hu, %Hu}\n", FUNC, aggr->addr, aggr->tot_siz
 #endif /* H5MF_AGGR_DEBUG */
 
         /* Turn off alignment if allocation < threshold */
-	alignment = H5F_ALIGNMENT(f);
-	if(!((alignment > 1) && (size >= H5F_THRESHOLD(f))))
-	    alignment = 0; /* no alignment */
+        alignment = H5F_ALIGNMENT(f);
+        if(!((alignment > 1) && (size >= H5F_THRESHOLD(f))))
+            alignment = 0; /* no alignment */
 
         /* Generate fragment if aggregator is mis-aligned */
-	if(alignment && H5F_addr_gt(aggr->addr, 0) && (aggr_mis_align = (aggr->addr + H5F_BASE_ADDR(f)) % alignment)) {
-	    aggr_frag_addr = aggr->addr;
-	    aggr_frag_size = alignment - aggr_mis_align;
-	} /* end if */
+        if(alignment && H5F_addr_gt(aggr->addr, 0) && (aggr_mis_align = (aggr->addr + H5F_BASE_ADDR(f)) % alignment)) {
+            aggr_frag_addr = aggr->addr;
+            aggr_frag_size = alignment - aggr_mis_align;
+        } /* end if */
 
-	alloc_type = aggr->feature_flag == H5FD_FEAT_AGGREGATE_METADATA ? H5FD_MEM_DEFAULT : H5FD_MEM_DRAW;
-	other_alloc_type = other_aggr->feature_flag == H5FD_FEAT_AGGREGATE_METADATA ? H5FD_MEM_DEFAULT : H5FD_MEM_DRAW;
+        alloc_type = aggr->feature_flag == H5FD_FEAT_AGGREGATE_METADATA ? H5FD_MEM_DEFAULT : H5FD_MEM_DRAW;
+        other_alloc_type = other_aggr->feature_flag == H5FD_FEAT_AGGREGATE_METADATA ? H5FD_MEM_DEFAULT : H5FD_MEM_DRAW;
 
         /* Check if the space requested is larger than the space left in the block */
         if((size + aggr_frag_size) > aggr->size) {
@@ -212,73 +214,74 @@ HDfprintf(stderr, "%s: aggr = {%a, %Hu, %Hu}\n", FUNC, aggr->addr, aggr->tot_siz
 
             /* Check if the block asked for is too large for 'normal' aggregator block */
             if(size >= aggr->alloc_size) {
-		hsize_t ext_size = size + aggr_frag_size;
+                hsize_t ext_size = size + aggr_frag_size;
 
                 /* Check for overlapping into file's temporary allocation space */
                 if(H5F_addr_gt((aggr->addr + aggr->size + ext_size), f->shared->tmp_addr))
                     HGOTO_ERROR(H5E_RESOURCE, H5E_BADRANGE, HADDR_UNDEF, "'normal' file space allocation request will overlap into 'temporary' file space")
 
-		if((aggr->addr > 0) && (extended = H5F__try_extend(f, alloc_type, (aggr->addr + aggr->size), ext_size)) < 0)
-		    HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, HADDR_UNDEF, "can't extending space")
-		else if (extended) {
-		    /* aggr->size is unchanged */
-		    ret_value = aggr->addr + aggr_frag_size;
-		    aggr->addr += ext_size;
-		    aggr->tot_size += ext_size;
-		} else {
+                if((aggr->addr > 0) && (extended = H5F__try_extend(f, alloc_type, (aggr->addr + aggr->size), ext_size)) < 0)
+                    HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, HADDR_UNDEF, "can't extending space")
+                else if(extended) {
+                    /* aggr->size is unchanged */
+                    ret_value = aggr->addr + aggr_frag_size;
+                    aggr->addr += ext_size;
+                    aggr->tot_size += ext_size;
+                }
+                else {
                     /* Release "other" aggregator, if it exists, is at the end of the allocated space,
                      * has allocated more than one block and the unallocated space is greater than its
                      * allocation block size.
                      */
-		    if((other_aggr->size > 0) && (H5F_addr_eq((other_aggr->addr + other_aggr->size), eoa)) &&
-			    (other_aggr->tot_size > other_aggr->size) && ((other_aggr->tot_size - other_aggr->size) >= other_aggr->alloc_size)) {
+                    if((other_aggr->size > 0) && (H5F_addr_eq((other_aggr->addr + other_aggr->size), eoa)) &&
+                            (other_aggr->tot_size > other_aggr->size) && ((other_aggr->tot_size - other_aggr->size) >= other_aggr->alloc_size)) {
                         if(H5MF__aggr_free(f, other_alloc_type, other_aggr) < 0)
                             HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, HADDR_UNDEF, "can't free aggregation block")
-		    } /* end if */
+                    } /* end if */
 
                     /* Allocate space from the VFD (i.e. at the end of the file) */
-		    if(HADDR_UNDEF == (ret_value = H5F__alloc(f, alloc_type, size, &eoa_frag_addr, &eoa_frag_size)))
-			HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, HADDR_UNDEF, "can't allocate file space")
+                    if(HADDR_UNDEF == (ret_value = H5F__alloc(f, alloc_type, size, &eoa_frag_addr, &eoa_frag_size)))
+                        HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, HADDR_UNDEF, "can't allocate file space")
                 } /* end else */
             } /* end if */
-	    else {
-		hsize_t ext_size = aggr->alloc_size;
+            else {
+                hsize_t ext_size = aggr->alloc_size;
 
                 /* Allocate another block */
 #ifdef H5MF_AGGR_DEBUG
 HDfprintf(stderr, "%s: Allocating block\n", FUNC);
 #endif /* H5MF_AGGR_DEBUG */
 
-		if(aggr_frag_size > (ext_size - size))
-		    ext_size += (aggr_frag_size - (ext_size - size));
+                if(aggr_frag_size > (ext_size - size))
+                    ext_size += (aggr_frag_size - (ext_size - size));
 
                 /* Check for overlapping into file's temporary allocation space */
                 if(H5F_addr_gt((aggr->addr + aggr->size + ext_size), f->shared->tmp_addr))
                     HGOTO_ERROR(H5E_RESOURCE, H5E_BADRANGE, HADDR_UNDEF, "'normal' file space allocation request will overlap into 'temporary' file space")
 
-		if((aggr->addr > 0) && (extended = H5F__try_extend(f, alloc_type, (aggr->addr + aggr->size), ext_size)) < 0)
-		    HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, HADDR_UNDEF, "can't extending space")
-		else if(extended) {
-		    aggr->addr += aggr_frag_size;
-		    aggr->size += (ext_size - aggr_frag_size);
-		    aggr->tot_size += ext_size;
-		} /* end else-if */
-		else {
+                if((aggr->addr > 0) && (extended = H5F__try_extend(f, alloc_type, (aggr->addr + aggr->size), ext_size)) < 0)
+                    HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, HADDR_UNDEF, "can't extending space")
+                else if(extended) {
+                    aggr->addr += aggr_frag_size;
+                    aggr->size += (ext_size - aggr_frag_size);
+                    aggr->tot_size += ext_size;
+                } /* end else-if */
+                else {
                     haddr_t new_space;          /* Address of new space allocated */
 
                     /* Release "other" aggregator, if it exists, is at the end of the allocated space,
                      * has allocated more than one block and the unallocated space is greater than its
                      * allocation block size.
                      */
-		    if((other_aggr->size > 0) && (H5F_addr_eq((other_aggr->addr + other_aggr->size), eoa)) &&
-			    (other_aggr->tot_size > other_aggr->size) && ((other_aggr->tot_size - other_aggr->size) >= other_aggr->alloc_size)) {
+                    if((other_aggr->size > 0) && (H5F_addr_eq((other_aggr->addr + other_aggr->size), eoa)) &&
+                            (other_aggr->tot_size > other_aggr->size) && ((other_aggr->tot_size - other_aggr->size) >= other_aggr->alloc_size)) {
                         if(H5MF__aggr_free(f, other_alloc_type, other_aggr) < 0)
                             HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, HADDR_UNDEF, "can't free aggregation block")
-		    } /* end if */
+                    } /* end if */
 
                     /* Allocate space from the VFD (i.e. at the end of the file) */
-		    if(HADDR_UNDEF == (new_space = H5F__alloc(f, alloc_type, aggr->alloc_size, &eoa_frag_addr, &eoa_frag_size)))
-			HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, HADDR_UNDEF, "can't allocate file space")
+                    if(HADDR_UNDEF == (new_space = H5F__alloc(f, alloc_type, aggr->alloc_size, &eoa_frag_addr, &eoa_frag_size)))
+                        HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, HADDR_UNDEF, "can't allocate file space")
 
                     /* Return the unused portion of the block to a free list */
                     if(aggr->size > 0)
@@ -307,32 +310,32 @@ HDfprintf(stderr, "%s: Allocating block\n", FUNC);
                     } /* end else */
                 } /* end else */
 
-		/* Allocate space out of the metadata block */
-		ret_value = aggr->addr;
-		aggr->size -= size;
-		aggr->addr += size;
+                /* Allocate space out of the metadata block */
+                ret_value = aggr->addr;
+                aggr->size -= size;
+                aggr->addr += size;
             } /* end else */
 
-	    /* Freeing any possible fragment due to file allocation */
-	    if(eoa_frag_size)
-		if(H5MF_xfree(f, alloc_type, eoa_frag_addr, eoa_frag_size) < 0)
-		    HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, HADDR_UNDEF, "can't free eoa fragment")
+            /* Freeing any possible fragment due to file allocation */
+            if(eoa_frag_size)
+                if(H5MF_xfree(f, alloc_type, eoa_frag_addr, eoa_frag_size) < 0)
+                    HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, HADDR_UNDEF, "can't free eoa fragment")
 
-	    /* Freeing any possible fragment due to alignment in the block after extension */
+            /* Freeing any possible fragment due to alignment in the block after extension */
             if(extended && aggr_frag_size)
-		if(H5MF_xfree(f, alloc_type, aggr_frag_addr, aggr_frag_size) < 0)
-		    HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, HADDR_UNDEF, "can't free aggregation fragment")
+                if(H5MF_xfree(f, alloc_type, aggr_frag_addr, aggr_frag_size) < 0)
+                    HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, HADDR_UNDEF, "can't free aggregation fragment")
         } /* end if */
         else {
             /* Allocate space out of the block */
-	    ret_value = aggr->addr + aggr_frag_size;
-	    aggr->size -= (size + aggr_frag_size);
-	    aggr->addr += (size + aggr_frag_size);
-
-	    /* free any possible fragment */
-	    if(aggr_frag_size)
-		if(H5MF_xfree(f, alloc_type, aggr_frag_addr, aggr_frag_size) < 0)
-		    HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, HADDR_UNDEF, "can't free aggregation fragment")
+            ret_value = aggr->addr + aggr_frag_size;
+            aggr->size -= (size + aggr_frag_size);
+            aggr->addr += (size + aggr_frag_size);
+
+            /* free any possible fragment */
+            if(aggr_frag_size)
+                if(H5MF_xfree(f, alloc_type, aggr_frag_addr, aggr_frag_size) < 0)
+                    HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, HADDR_UNDEF, "can't free aggregation fragment")
         } /* end else */
     } /* end if */
     else {
@@ -341,10 +344,10 @@ HDfprintf(stderr, "%s: Allocating block\n", FUNC);
             HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, HADDR_UNDEF, "can't allocate file space")
 
         /* Check if fragment was generated */
-	if(eoa_frag_size)
+        if(eoa_frag_size)
             /* Put fragment on the free list */
-	    if(H5MF_xfree(f, type, eoa_frag_addr, eoa_frag_size) < 0)
-		HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, HADDR_UNDEF, "can't free eoa fragment")
+            if(H5MF_xfree(f, type, eoa_frag_addr, eoa_frag_size) < 0)
+                HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, HADDR_UNDEF, "can't free eoa fragment")
     } /* end else */
 
     /* Sanity check for overlapping into file's temporary allocation space */
@@ -403,53 +406,53 @@ H5MF__aggr_try_extend(H5F_t *f, H5F_blk_aggr_t *aggr,
     /* Check if this aggregator is active */
     if(f->shared->feature_flags & aggr->feature_flag) {
         /* 
-	 * If the block being tested adjoins the beginning of the aggregator
+         * If the block being tested adjoins the beginning of the aggregator
          *      block, check if the aggregator can accomodate the extension.
          */
         if(H5F_addr_eq(blk_end, aggr->addr)) {
-	    haddr_t eoa;      /* EOA for the file */
-
-	    /* Get the EOA for the file */
-	    if(HADDR_UNDEF == (eoa = H5F_get_eoa(f, type)))
-		HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "Unable to get eoa")
-
-	    /* If the aggregator is at the end of file: */
-	    if(H5F_addr_eq(eoa, aggr->addr + aggr->size)) {
-		/* If extra_requested is below percentage threshold, extend block into the aggregator. */
-		if(extra_requested <= (hsize_t)(EXTEND_THRESHOLD * (float)aggr->size)) {
-		    aggr->size -= extra_requested;
-		    aggr->addr += extra_requested;
-
-		    /* Indicate success */
-		    HGOTO_DONE(TRUE);
-		} /* end if */
-		/*
-		 * If extra_requested is above percentage threshold:
-		 * 1) "bubble" up the aggregator by aggr->alloc_size or extra_requested
-		 * 2) extend the block into the aggregator 
-		 */
-		else {
-		    hsize_t extra = (extra_requested < aggr->alloc_size) ? aggr->alloc_size : extra_requested;
+            haddr_t eoa;      /* EOA for the file */
+
+            /* Get the EOA for the file */
+            if(HADDR_UNDEF == (eoa = H5F_get_eoa(f, type)))
+                HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "Unable to get eoa")
+
+            /* If the aggregator is at the end of file: */
+            if(H5F_addr_eq(eoa, aggr->addr + aggr->size)) {
+                /* If extra_requested is below percentage threshold, extend block into the aggregator. */
+                if(extra_requested <= (hsize_t)(EXTEND_THRESHOLD * (float)aggr->size)) {
+                    aggr->size -= extra_requested;
+                    aggr->addr += extra_requested;
+
+                    /* Indicate success */
+                    HGOTO_DONE(TRUE);
+                } /* end if */
+                /*
+                 * If extra_requested is above percentage threshold:
+                 * 1) "bubble" up the aggregator by aggr->alloc_size or extra_requested
+                 * 2) extend the block into the aggregator 
+                 */
+                else {
+                    hsize_t extra = (extra_requested < aggr->alloc_size) ? aggr->alloc_size : extra_requested;
 
                     if((ret_value = H5F__try_extend(f, type, (aggr->addr + aggr->size), extra)) < 0)
-			HGOTO_ERROR(H5E_RESOURCE, H5E_CANTEXTEND, FAIL, "error extending file")
-		    else if(ret_value == TRUE) {
-			/* Shift the aggregator block by the extra requested */
+                        HGOTO_ERROR(H5E_RESOURCE, H5E_CANTEXTEND, FAIL, "error extending file")
+                    else if(ret_value == TRUE) {
+                        /* Shift the aggregator block by the extra requested */
                         /* (allocates the space for the extra_requested) */
-			aggr->addr += extra_requested;
+                        aggr->addr += extra_requested;
 
-			/* Add extra to the aggregator's total allocated amount */
-			aggr->tot_size += extra;
+                        /* Add extra to the aggregator's total allocated amount */
+                        aggr->tot_size += extra;
 
                         /* Account for any space added to the aggregator */
                         /* (either 0 (if extra_requested > aggr->alloc_size) or
                          *      (aggr->alloc_size - extra_requested) -QAK
                          */
-			aggr->size += extra;
-			aggr->size -= extra_requested;
-		    } /* end else-if */
-		} /* end else */
-	    } /* end if */
+                        aggr->size += extra;
+                        aggr->size -= extra_requested;
+                    } /* end else-if */
+                } /* end else */
+            } /* end if */
             else {
                 /* The aggreator is not at end of file */
                 /* Check if aggregator has enough internal space to satisfy the extension. */
@@ -461,8 +464,8 @@ H5MF__aggr_try_extend(H5F_t *f, H5F_blk_aggr_t *aggr,
                     /* Indicate success */
                     HGOTO_DONE(TRUE);
                  } /* end if */
-	    } /* end else */
-	} /* end if */
+            } /* end else */
+        } /* end if */
     } /* end if */
 
 done:
@@ -471,7 +474,7 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:    H5MF_aggr_can_absorb
+ * Function:    H5MF__aggr_can_absorb
  *
  * Purpose:	Check if a section adjoins an aggregator block and one can
  *              absorb the other.
@@ -486,12 +489,12 @@ done:
  *-------------------------------------------------------------------------
  */
 htri_t
-H5MF_aggr_can_absorb(const H5F_t *f, const H5F_blk_aggr_t *aggr,
+H5MF__aggr_can_absorb(const H5F_t *f, const H5F_blk_aggr_t *aggr,
     const H5MF_free_section_t *sect, H5MF_shrink_type_t *shrink)
 {
     htri_t ret_value = FALSE;           /* Return value */
 
-    FUNC_ENTER_NOAPI_NOINIT_NOERR
+    FUNC_ENTER_PACKAGE_NOERR
 
     /* Check args */
     HDassert(f);
@@ -506,7 +509,7 @@ H5MF_aggr_can_absorb(const H5F_t *f, const H5F_blk_aggr_t *aggr,
         if(H5F_addr_eq((sect->sect_info.addr + sect->sect_info.size), aggr->addr)
                 || H5F_addr_eq((aggr->addr + aggr->size), sect->sect_info.addr)) {
 #ifdef H5MF_AGGR_DEBUG
-HDfprintf(stderr, "%s: section {%a, %Hu} adjoins aggr = {%a, %Hu}\n", "H5MF_aggr_can_absorb", sect->sect_info.addr, sect->sect_info.size, aggr->addr, aggr->size);
+HDfprintf(stderr, "%s: section {%a, %Hu} adjoins aggr = {%a, %Hu}\n", "H5MF__aggr_can_absorb", sect->sect_info.addr, sect->sect_info.size, aggr->addr, aggr->size);
 #endif /* H5MF_AGGR_DEBUG */
             /* Check if aggregator would get too large and should be absorbed into section */
             if((aggr->size + sect->sect_info.size) >= aggr->alloc_size)
@@ -521,11 +524,11 @@ HDfprintf(stderr, "%s: section {%a, %Hu} adjoins aggr = {%a, %Hu}\n", "H5MF_aggr
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5MF_aggr_can_absorb() */
+} /* end H5MF__aggr_can_absorb() */
 
 
 /*-------------------------------------------------------------------------
- * Function:    H5MF_aggr_absorb
+ * Function:    H5MF__aggr_absorb
  *
  * Purpose:	Absorb a free space section into an aggregator block or
  *              vice versa.
@@ -539,10 +542,10 @@ done:
  *-------------------------------------------------------------------------
  */
 herr_t
-H5MF_aggr_absorb(const H5F_t H5_ATTR_UNUSED *f, H5F_blk_aggr_t *aggr, H5MF_free_section_t *sect,
+H5MF__aggr_absorb(const H5F_t H5_ATTR_UNUSED *f, H5F_blk_aggr_t *aggr, H5MF_free_section_t *sect,
     hbool_t allow_sect_absorb)
 {
-    FUNC_ENTER_NOAPI_NOINIT_NOERR
+    FUNC_ENTER_PACKAGE_NOERR
 
     /* Check args */
     HDassert(f);
@@ -556,7 +559,7 @@ H5MF_aggr_absorb(const H5F_t H5_ATTR_UNUSED *f, H5F_blk_aggr_t *aggr, H5MF_free_
         /* Check if the section adjoins the beginning or end of the aggregator */
         if(H5F_addr_eq((sect->sect_info.addr + sect->sect_info.size), aggr->addr)) {
 #ifdef H5MF_AGGR_DEBUG
-HDfprintf(stderr, "%s: aggr {%a, %Hu} adjoins front of section = {%a, %Hu}\n", "H5MF_aggr_absorb", aggr->addr, aggr->size, sect->sect_info.addr, sect->sect_info.size);
+HDfprintf(stderr, "%s: aggr {%a, %Hu} adjoins front of section = {%a, %Hu}\n", "H5MF__aggr_absorb", aggr->addr, aggr->size, sect->sect_info.addr, sect->sect_info.size);
 #endif /* H5MF_AGGR_DEBUG */
             /* Absorb aggregator onto end of section */
             sect->sect_info.size += aggr->size;
@@ -566,7 +569,7 @@ HDfprintf(stderr, "%s: aggr {%a, %Hu} adjoins front of section = {%a, %Hu}\n", "
             HDassert(H5F_addr_eq((aggr->addr + aggr->size), sect->sect_info.addr));
 
 #ifdef H5MF_AGGR_DEBUG
-HDfprintf(stderr, "%s: aggr {%a, %Hu} adjoins end of section = {%a, %Hu}\n", "H5MF_aggr_absorb", aggr->addr, aggr->size, sect->sect_info.addr, sect->sect_info.size);
+HDfprintf(stderr, "%s: aggr {%a, %Hu} adjoins end of section = {%a, %Hu}\n", "H5MF__aggr_absorb", aggr->addr, aggr->size, sect->sect_info.addr, sect->sect_info.size);
 #endif /* H5MF_AGGR_DEBUG */
             /* Absorb aggregator onto beginning of section */
             sect->sect_info.addr -= aggr->size;
@@ -582,7 +585,7 @@ HDfprintf(stderr, "%s: aggr {%a, %Hu} adjoins end of section = {%a, %Hu}\n", "H5
         /* Check if the section adjoins the beginning or end of the aggregator */
         if(H5F_addr_eq((sect->sect_info.addr + sect->sect_info.size), aggr->addr)) {
 #ifdef H5MF_AGGR_DEBUG
-HDfprintf(stderr, "%s: section {%a, %Hu} adjoins front of aggr = {%a, %Hu}\n", "H5MF_aggr_absorb", sect->sect_info.addr, sect->sect_info.size, aggr->addr, aggr->size);
+HDfprintf(stderr, "%s: section {%a, %Hu} adjoins front of aggr = {%a, %Hu}\n", "H5MF__aggr_absorb", sect->sect_info.addr, sect->sect_info.size, aggr->addr, aggr->size);
 #endif /* H5MF_AGGR_DEBUG */
             /* Absorb section onto front of aggregator */
             aggr->addr -= sect->sect_info.size;
@@ -598,7 +601,7 @@ HDfprintf(stderr, "%s: section {%a, %Hu} adjoins front of aggr = {%a, %Hu}\n", "
             HDassert(H5F_addr_eq((aggr->addr + aggr->size), sect->sect_info.addr));
 
 #ifdef H5MF_AGGR_DEBUG
-HDfprintf(stderr, "%s: section {%a, %Hu} adjoins end of aggr = {%a, %Hu}\n", "H5MF_aggr_absorb", sect->sect_info.addr, sect->sect_info.size, aggr->addr, aggr->size);
+HDfprintf(stderr, "%s: section {%a, %Hu} adjoins end of aggr = {%a, %Hu}\n", "H5MF__aggr_absorb", sect->sect_info.addr, sect->sect_info.size, aggr->addr, aggr->size);
 #endif /* H5MF_AGGR_DEBUG */
             /* Absorb section onto end of aggregator */
             aggr->size += sect->sect_info.size;
@@ -608,11 +611,11 @@ HDfprintf(stderr, "%s: section {%a, %Hu} adjoins end of aggr = {%a, %Hu}\n", "H5
     } /* end else */
 
     FUNC_LEAVE_NOAPI(SUCCEED)
-} /* end H5MF_aggr_absorb() */
+} /* end H5MF__aggr_absorb() */
 
 
 /*-------------------------------------------------------------------------
- * Function:    H5MF_aggr_query
+ * Function:    H5MF__aggr_query
  *
  * Purpose:     Query a block aggregator's current address & size info
  *
@@ -625,10 +628,10 @@ HDfprintf(stderr, "%s: section {%a, %Hu} adjoins end of aggr = {%a, %Hu}\n", "H5
  *-------------------------------------------------------------------------
  */
 herr_t
-H5MF_aggr_query(const H5F_t *f, const H5F_blk_aggr_t *aggr, haddr_t *addr,
+H5MF__aggr_query(const H5F_t *f, const H5F_blk_aggr_t *aggr, haddr_t *addr,
     hsize_t *size)
 {
-    FUNC_ENTER_NOAPI_NOINIT_NOERR
+    FUNC_ENTER_PACKAGE_NOERR
 
     /* Check args */
     HDassert(f);
@@ -644,7 +647,7 @@ H5MF_aggr_query(const H5F_t *f, const H5F_blk_aggr_t *aggr, haddr_t *addr,
     } /* end if */
 
     FUNC_LEAVE_NOAPI(SUCCEED)
-} /* end H5MF_aggr_query() */
+} /* end H5MF__aggr_query() */
 
 
 /*-------------------------------------------------------------------------
@@ -737,11 +740,11 @@ H5MF_free_aggrs(H5F_t *f)
     HDassert(f->shared->lf);
 
     /* Retrieve metadata aggregator info, if available */
-    if(H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size) < 0)
+    if(H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size) < 0)
         HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "can't query metadata aggregator stats")
 
     /* Retrieve 'small data' aggregator info, if available */
-    if(H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sda_addr, &sda_size) < 0)
+    if(H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sda_addr, &sda_size) < 0)
         HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "can't query small data aggregator stats")
 
     /* Make certain we release the aggregator that's later in the file first */
@@ -774,7 +777,7 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:    H5MF_aggr_can_shrink_eoa
+ * Function:    H5MF__aggr_can_shrink_eoa
  *
  * Purpose:     Check if the remaining space in the aggregator is at EOA
  *
@@ -786,12 +789,12 @@ done:
  *-------------------------------------------------------------------------
  */
 static htri_t
-H5MF_aggr_can_shrink_eoa(H5F_t *f, H5FD_mem_t type, H5F_blk_aggr_t *aggr)
+H5MF__aggr_can_shrink_eoa(H5F_t *f, H5FD_mem_t type, H5F_blk_aggr_t *aggr)
 {
     haddr_t eoa = HADDR_UNDEF;      	/* EOA for the file */
     htri_t ret_value = FALSE;   	/* Return value */
 
-    FUNC_ENTER_NOAPI(FAIL)
+    FUNC_ENTER_STATIC
 
     /* Sanity check */
     HDassert(f);
@@ -808,7 +811,7 @@ H5MF_aggr_can_shrink_eoa(H5F_t *f, H5FD_mem_t type, H5F_blk_aggr_t *aggr)
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
-} /* H5MF_aggr_can_shrink_eoa() */
+} /* H5MF__aggr_can_shrink_eoa() */
 
 
 /*-------------------------------------------------------------------------
@@ -882,17 +885,17 @@ H5MF_aggrs_try_shrink_eoa(H5F_t *f)
     HDassert(f);
     HDassert(f->shared);
 
-    if((ma_status = H5MF_aggr_can_shrink_eoa(f, H5FD_MEM_DEFAULT, &(f->shared->meta_aggr))) < 0)
+    if((ma_status = H5MF__aggr_can_shrink_eoa(f, H5FD_MEM_DEFAULT, &(f->shared->meta_aggr))) < 0)
         HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "can't query metadata aggregator stats")
     if(ma_status > 0)
-	if(H5MF__aggr_free(f, H5FD_MEM_DEFAULT, &(f->shared->meta_aggr)) < 0)
-	    HGOTO_ERROR(H5E_RESOURCE, H5E_CANTSHRINK, FAIL, "can't check for shrinking eoa")
+        if(H5MF__aggr_free(f, H5FD_MEM_DEFAULT, &(f->shared->meta_aggr)) < 0)
+            HGOTO_ERROR(H5E_RESOURCE, H5E_CANTSHRINK, FAIL, "can't check for shrinking eoa")
 
-    if((sda_status = H5MF_aggr_can_shrink_eoa(f, H5FD_MEM_DRAW, &(f->shared->sdata_aggr))) < 0)
+    if((sda_status = H5MF__aggr_can_shrink_eoa(f, H5FD_MEM_DRAW, &(f->shared->sdata_aggr))) < 0)
         HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "can't query small data aggregator stats")
     if(sda_status > 0)
-	if(H5MF__aggr_free(f, H5FD_MEM_DRAW, &(f->shared->sdata_aggr)) < 0)
-	    HGOTO_ERROR(H5E_RESOURCE, H5E_CANTSHRINK, FAIL, "can't check for shrinking eoa")
+        if(H5MF__aggr_free(f, H5FD_MEM_DRAW, &(f->shared->sdata_aggr)) < 0)
+            HGOTO_ERROR(H5E_RESOURCE, H5E_CANTSHRINK, FAIL, "can't check for shrinking eoa")
 
     ret_value = (ma_status || sda_status);
 
diff --git a/src/H5MFdbg.c b/src/H5MFdbg.c
index 592ca87..eedb72e 100644
--- a/src/H5MFdbg.c
+++ b/src/H5MFdbg.c
@@ -67,6 +67,7 @@ typedef struct {
 /* Local Prototypes */
 /********************/
 
+static herr_t H5MF__sects_debug_cb(H5FS_section_info_t *_sect, void *_udata);
 
 /*********************/
 /* Package Variables */
@@ -84,7 +85,7 @@ typedef struct {
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5MF_sects_debug_cb
+ * Function:	H5MF__sects_debug_cb
  *
  * Purpose:	Prints debugging info about a free space section for a file
  *
@@ -97,13 +98,13 @@ typedef struct {
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5MF_sects_debug_cb(H5FS_section_info_t *_sect, void *_udata)
+H5MF__sects_debug_cb(H5FS_section_info_t *_sect, void *_udata)
 {
     H5MF_free_section_t *sect = (H5MF_free_section_t *)_sect;       /* Section to dump info */
     H5MF_debug_iter_ud_t *udata = (H5MF_debug_iter_ud_t *)_udata;         /* User data for callbacks */
     herr_t      ret_value = SUCCEED;    /* Return value */
 
-    FUNC_ENTER_NOAPI_NOINIT
+    FUNC_ENTER_STATIC
 
     /*
      * Check arguments.
@@ -136,7 +137,7 @@ H5MF_sects_debug_cb(H5FS_section_info_t *_sect, void *_udata)
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5MF_sects_debug_cb() */
+} /* end H5MF__sects_debug_cb() */
 
 
 /*-------------------------------------------------------------------------
@@ -184,7 +185,7 @@ H5MF_sects_debug(H5F_t *f, haddr_t fs_addr, FILE *stream, int indent, int fwidth
                 udata.fwidth = fwidth;
 
                 /* Iterate over all the free space sections */
-                if(H5FS_sect_iterate(f, f->shared->fs_man[type], H5MF_sects_debug_cb, &udata) < 0)
+                if(H5FS_sect_iterate(f, f->shared->fs_man[type], H5MF__sects_debug_cb, &udata) < 0)
                     HGOTO_ERROR(H5E_HEAP, H5E_BADITER, FAIL, "can't iterate over heap's free space")
 
                 /* Close the free space information */
@@ -201,7 +202,7 @@ done:
 #ifdef H5MF_ALLOC_DEBUG_DUMP
 
 /*-------------------------------------------------------------------------
- * Function:	H5MF_sects_dump
+ * Function:	H5MF__sects_dump
  *
  * Purpose:	Prints debugging info about free space sections for a file.
  *
@@ -221,7 +222,7 @@ H5MF_sects_dump(H5F_t *f, FILE *stream)
     int fwidth = 50;                    /* Field width */
     herr_t ret_value = SUCCEED;         /* Return value */
 
-    FUNC_ENTER_NOAPI_TAG(H5AC__FREESPACE_TAG, FAIL)
+    FUNC_ENTER_PACKAGE_TAG(H5AC__FREESPACE_TAG, FAIL)
 #ifdef H5MF_ALLOC_DEBUG
 HDfprintf(stderr, "%s: Dumping file free space sections\n", FUNC);
 #endif /* H5MF_ALLOC_DEBUG */
@@ -234,7 +235,7 @@ HDfprintf(stderr, "%s: Dumping file free space sections\n", FUNC);
 
     /* Retrieve the 'eoa' for the file */
     if(HADDR_UNDEF == (eoa = H5F_get_eoa(f, H5FD_MEM_DEFAULT)))
-	HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "driver get_eoa request failed")
+        HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "driver get_eoa request failed")
 #ifdef H5MF_ALLOC_DEBUG
 HDfprintf(stderr, "%s: for type = H5FD_MEM_DEFAULT, eoa = %a\n", FUNC, eoa);
 #endif /* H5MF_ALLOC_DEBUG */
@@ -276,13 +277,13 @@ HDfprintf(stderr, "%s: for type = H5FD_MEM_DEFAULT, eoa = %a\n", FUNC, eoa);
         hsize_t sda_size = 0;               /* Size of "small data aggregator" */
 
         /* Retrieve metadata aggregator info, if available */
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 #ifdef H5MF_ALLOC_DEBUG
 HDfprintf(stderr, "%s: ma_addr = %a, ma_size = %Hu, end of ma = %a\n", FUNC, ma_addr, ma_size, (haddr_t)((ma_addr + ma_size) - 1));
 #endif /* H5MF_ALLOC_DEBUG */
 
         /* Retrieve 'small data' aggregator info, if available */
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sda_addr, &sda_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sda_addr, &sda_size);
 #ifdef H5MF_ALLOC_DEBUG
 HDfprintf(stderr, "%s: sda_addr = %a, sda_size = %Hu, end of sda = %a\n", FUNC, sda_addr, sda_size, (haddr_t)((sda_addr + sda_size) - 1));
 #endif /* H5MF_ALLOC_DEBUG */
@@ -303,7 +304,7 @@ HDfprintf(stderr, "%s: sda_addr = %a, sda_size = %Hu, end of sda = %a\n", FUNC,
                 HDfprintf(stream, "%*sSections:\n", indent + 3, "");
 
                 /* If there is a free space manager for this type, iterate over them */
-                if(f->shared->fs.aggr.fs_man[atype]) {
+                if(f->shared->fs_man[atype]) {
                     H5MF_debug_iter_ud_t udata;        /* User data for callbacks */
 
                     /* Prepare user data for section iteration callback */
@@ -327,6 +328,6 @@ HDfprintf(stderr, "%s: sda_addr = %a, sda_size = %Hu, end of sda = %a\n", FUNC,
 done:
 HDfprintf(stderr, "%s: Done dumping file free space sections\n", FUNC);
     FUNC_LEAVE_NOAPI_TAG(ret_value)
-} /* end H5MF_sects_dump() */
+} /* end H5MF__sects_dump() */
 #endif /* H5MF_ALLOC_DEBUG_DUMP */
 
diff --git a/src/H5MFpkg.h b/src/H5MFpkg.h
index fbf9ee8..ec4aab4 100644
--- a/src/H5MFpkg.h
+++ b/src/H5MFpkg.h
@@ -12,12 +12,12 @@
  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 /*
- * Programmer:	Quincey Koziol <koziol@hdfgroup.org>
- *		Tuesday, January 8, 2008
+ * Programmer:  Quincey Koziol <koziol@hdfgroup.org>
+ *              Tuesday, January 8, 2008
  *
- * Purpose:	This file contains declarations which are visible only within
- *		the H5MF package.  Source files outside the H5MF package should
- *		include H5MFprivate.h instead.
+ * Purpose:     This file contains declarations which are visible only within
+ *              the H5MF package.  Source files outside the H5MF package should
+ *              include H5MFprivate.h instead.
  */
 #if !(defined H5MF_FRIEND || defined H5MF_MODULE)
 #error "Do not include this file outside the H5MF package!"
@@ -186,24 +186,24 @@ H5_DLL herr_t H5MF__start_fstype(H5F_t *f, H5F_mem_page_t type);
 H5_DLL htri_t H5MF__find_sect(H5F_t *f, H5FD_mem_t alloc_type, hsize_t size, H5FS_t *fspace, haddr_t *addr);
 H5_DLL herr_t H5MF__add_sect(H5F_t *f, H5FD_mem_t alloc_type, H5FS_t *fspace, H5MF_free_section_t *node);
 
-H5_DLL herr_t H5MF_sects_dump(H5F_t *f, FILE *stream);
+H5_DLL herr_t H5MF__sects_dump(H5F_t *f, FILE *stream);
 
-H5_DLL void H5MF_alloc_to_fs_type(H5F_t *f, H5FD_mem_t alloc_type, hsize_t size, H5F_mem_page_t *fs_type);
+H5_DLL void H5MF__alloc_to_fs_type(H5F_t *f, H5FD_mem_t alloc_type, hsize_t size, H5F_mem_page_t *fs_type);
 
 /* 'simple/small/large' section routines */
-H5_DLL H5MF_free_section_t *H5MF_sect_new(unsigned ctype, haddr_t sect_off,
+H5_DLL H5MF_free_section_t *H5MF__sect_new(unsigned ctype, haddr_t sect_off,
     hsize_t sect_size);
-H5_DLL herr_t H5MF_sect_free(H5FS_section_info_t *sect);
+H5_DLL herr_t H5MF__sect_free(H5FS_section_info_t *sect);
 
 
 /* Block aggregator routines */
 H5_DLL htri_t H5MF__aggr_try_extend(H5F_t *f, H5F_blk_aggr_t *aggr,
     H5FD_mem_t type, haddr_t abs_blk_end, hsize_t extra_requested);
-H5_DLL htri_t H5MF_aggr_can_absorb(const H5F_t *f, const H5F_blk_aggr_t *aggr,
+H5_DLL htri_t H5MF__aggr_can_absorb(const H5F_t *f, const H5F_blk_aggr_t *aggr,
     const H5MF_free_section_t *sect, H5MF_shrink_type_t *shrink);
-H5_DLL herr_t H5MF_aggr_absorb(const H5F_t *f, H5F_blk_aggr_t *aggr,
+H5_DLL herr_t H5MF__aggr_absorb(const H5F_t *f, H5F_blk_aggr_t *aggr,
     H5MF_free_section_t *sect, hbool_t allow_sect_absorb);
-H5_DLL herr_t H5MF_aggr_query(const H5F_t *f, const H5F_blk_aggr_t *aggr,
+H5_DLL herr_t H5MF__aggr_query(const H5F_t *f, const H5F_blk_aggr_t *aggr,
     haddr_t *addr, hsize_t *size);
 
 /* Testing routines */
diff --git a/src/H5MFsection.c b/src/H5MFsection.c
index fe140a7..3ebc5c8 100644
--- a/src/H5MFsection.c
+++ b/src/H5MFsection.c
@@ -56,44 +56,40 @@
 /********************/
 
 /* 'simple/small/large' section callbacks */
-static H5FS_section_info_t *H5MF_sect_deserialize(const H5FS_section_class_t *cls,
+static H5FS_section_info_t *H5MF__sect_deserialize(const H5FS_section_class_t *cls,
     const uint8_t *buf, haddr_t sect_addr, hsize_t sect_size, unsigned *des_flags);
-static herr_t H5MF_sect_valid(const H5FS_section_class_t *cls,
+static herr_t H5MF__sect_valid(const H5FS_section_class_t *cls,
     const H5FS_section_info_t *sect);
-static H5FS_section_info_t *H5MF_sect_split(H5FS_section_info_t *sect,
+static H5FS_section_info_t *H5MF__sect_split(H5FS_section_info_t *sect,
     hsize_t frag_size);
 
 
 /* 'simple' section callbacks */
-static htri_t H5MF_sect_simple_can_merge(const H5FS_section_info_t *sect1,
+static htri_t H5MF__sect_simple_can_merge(const H5FS_section_info_t *sect1,
     const H5FS_section_info_t *sect2, void *udata);
-static herr_t H5MF_sect_simple_merge(H5FS_section_info_t **sect1,
+static herr_t H5MF__sect_simple_merge(H5FS_section_info_t **sect1,
     H5FS_section_info_t *sect2, void *udata);
-static htri_t H5MF_sect_simple_can_shrink(const H5FS_section_info_t *_sect,
+static htri_t H5MF__sect_simple_can_shrink(const H5FS_section_info_t *_sect,
     void *udata);
-static herr_t H5MF_sect_simple_shrink(H5FS_section_info_t **_sect,
+static herr_t H5MF__sect_simple_shrink(H5FS_section_info_t **_sect,
     void *udata);
 
 
 /* 'small' section callbacks */
-static herr_t H5MF_sect_small_add(H5FS_section_info_t **_sect, unsigned *flags, void *_udata);
-static htri_t H5MF_sect_small_can_merge(const H5FS_section_info_t *sect1,
+static herr_t H5MF__sect_small_add(H5FS_section_info_t **_sect, unsigned *flags, void *_udata);
+static htri_t H5MF__sect_small_can_merge(const H5FS_section_info_t *sect1,
     const H5FS_section_info_t *sect2, void *udata);
-static herr_t H5MF_sect_small_merge(H5FS_section_info_t **sect1,
+static herr_t H5MF__sect_small_merge(H5FS_section_info_t **sect1,
     H5FS_section_info_t *sect2, void *udata);
-static htri_t H5MF_sect_small_can_shrink(const H5FS_section_info_t *_sect,
-    void *udata);
-static herr_t H5MF_sect_small_shrink(H5FS_section_info_t **_sect,
-    void *udata);
 
 /* 'large' section callbacks */
-static htri_t H5MF_sect_large_can_merge(const H5FS_section_info_t *sect1,
+static htri_t H5MF__sect_large_can_merge(const H5FS_section_info_t *sect1,
     const H5FS_section_info_t *sect2, void *udata);
-static herr_t H5MF_sect_large_merge(H5FS_section_info_t **sect1,
+static herr_t H5MF__sect_large_merge(H5FS_section_info_t **sect1,
     H5FS_section_info_t *sect2, void *udata);
-static htri_t H5MF_sect_large_can_shrink(const H5FS_section_info_t *_sect,
+static htri_t H5MF__sect_large_can_shrink(const H5FS_section_info_t *_sect,
     void *udata);
-static herr_t H5MF_sect_large_shrink(H5FS_section_info_t **_sect,
+static herr_t H5MF__sect_large_shrink(H5FS_section_info_t **_sect,
     void *udata);
 
 /*********************/
@@ -115,14 +111,14 @@ H5FS_section_class_t H5MF_FSPACE_SECT_CLS_SIMPLE[1] = {{
     /* Object methods */
     NULL,				/* Add section                  */
     NULL,				/* Serialize section            */
-    H5MF_sect_deserialize,		/* Deserialize section          */
-    H5MF_sect_simple_can_merge,		/* Can sections merge?          */
-    H5MF_sect_simple_merge,		/* Merge sections               */
-    H5MF_sect_simple_can_shrink,	/* Can section shrink container?*/
-    H5MF_sect_simple_shrink,		/* Shrink container w/section   */
-    H5MF_sect_free,			/* Free section                 */
-    H5MF_sect_valid,			/* Check validity of section    */
-    H5MF_sect_split,			/* Split section node for alignment */
+    H5MF__sect_deserialize,		/* Deserialize section          */
+    H5MF__sect_simple_can_merge,		/* Can sections merge?          */
+    H5MF__sect_simple_merge,		/* Merge sections               */
+    H5MF__sect_simple_can_shrink,	/* Can section shrink container?*/
+    H5MF__sect_simple_shrink,		/* Shrink container w/section   */
+    H5MF__sect_free,			/* Free section                 */
+    H5MF__sect_valid,			/* Check validity of section    */
+    H5MF__sect_split,			/* Split section node for alignment */
     NULL,				/* Dump debugging for section   */
 }};
 
@@ -139,16 +135,16 @@ H5FS_section_class_t H5MF_FSPACE_SECT_CLS_SMALL[1] = {{
     NULL,                       /* Terminate section class      */
 
     /* Object methods */
-    H5MF_sect_small_add,        /* Add section                  */
+    H5MF__sect_small_add,        /* Add section                  */
     NULL,                       /* Serialize section            */
-    H5MF_sect_deserialize,		/* Deserialize section          */
-    H5MF_sect_small_can_merge,  /* Can sections merge?          */
-    H5MF_sect_small_merge,      /* Merge sections               */
-    NULL,			/* Can section shrink container?*/
-    NULL,			/* Shrink container w/section   */
-    H5MF_sect_free,             /* Free section                 */
-    H5MF_sect_valid,            /* Check validity of section    */
-    H5MF_sect_split,            /* Split section node for alignment */
+    H5MF__sect_deserialize,		/* Deserialize section          */
+    H5MF__sect_small_can_merge,  /* Can sections merge?          */
+    H5MF__sect_small_merge,      /* Merge sections               */
+    NULL,		                /* Can section shrink container?*/
+    NULL,		                /* Shrink container w/section   */
+    H5MF__sect_free,             /* Free section                 */
+    H5MF__sect_valid,            /* Check validity of section    */
+    H5MF__sect_split,            /* Split section node for alignment */
     NULL,                       /* Dump debugging for section   */
 }};
 
@@ -167,14 +163,14 @@ H5FS_section_class_t H5MF_FSPACE_SECT_CLS_LARGE[1] = {{
     /* Object methods */
     NULL,				/* Add section                  */
     NULL,				/* Serialize section            */
-    H5MF_sect_deserialize,		/* Deserialize section          */
-    H5MF_sect_large_can_merge,		/* Can sections merge?          */
-    H5MF_sect_large_merge,		/* Merge sections               */
-    H5MF_sect_large_can_shrink,		/* Can section shrink container?*/
-    H5MF_sect_large_shrink,		/* Shrink container w/section   */
-    H5MF_sect_free,			/* Free section                 */
-    H5MF_sect_valid,			/* Check validity of section    */
-    H5MF_sect_split,			/* Split section node for alignment */
+    H5MF__sect_deserialize,		/* Deserialize section          */
+    H5MF__sect_large_can_merge,		/* Can sections merge?          */
+    H5MF__sect_large_merge,		/* Merge sections               */
+    H5MF__sect_large_can_shrink,		/* Can section shrink container?*/
+    H5MF__sect_large_shrink,		/* Shrink container w/section   */
+    H5MF__sect_free,			/* Free section                 */
+    H5MF__sect_valid,			/* Check validity of section    */
+    H5MF__sect_split,			/* Split section node for alignment */
     NULL,				/* Dump debugging for section   */
 }};
 
@@ -196,7 +192,7 @@ H5FL_DEFINE(H5MF_free_section_t);
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5MF_sect_new
+ * Function:	H5MF__sect_new
  *
  * Purpose:	Create a new section of "ctype" and return it to the caller
  *
@@ -209,12 +205,12 @@ H5FL_DEFINE(H5MF_free_section_t);
  *-------------------------------------------------------------------------
  */
 H5MF_free_section_t *
-H5MF_sect_new(unsigned ctype, haddr_t sect_off, hsize_t sect_size)
+H5MF__sect_new(unsigned ctype, haddr_t sect_off, hsize_t sect_size)
 {
     H5MF_free_section_t *sect;          /* 'Simple' free space section to add */
     H5MF_free_section_t *ret_value = NULL;      /* Return value */
 
-    FUNC_ENTER_NOAPI_NOINIT
+    FUNC_ENTER_PACKAGE
 
     /* Check arguments.  */
     HDassert(sect_size);
@@ -236,11 +232,11 @@ H5MF_sect_new(unsigned ctype, haddr_t sect_off, hsize_t sect_size)
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5MF_sect_new() */
+} /* end H5MF__sect_new() */
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5MF_sect_free
+ * Function:	H5MF__sect_free
  *
  * Purpose:	Free a 'simple/small/large' section node
  *
@@ -253,11 +249,11 @@ done:
  *-------------------------------------------------------------------------
  */
 herr_t
-H5MF_sect_free(H5FS_section_info_t *_sect)
+H5MF__sect_free(H5FS_section_info_t *_sect)
 {
     H5MF_free_section_t *sect = (H5MF_free_section_t *)_sect;   /* File free section */
 
-    FUNC_ENTER_NOAPI_NOINIT_NOERR
+    FUNC_ENTER_PACKAGE_NOERR
 
     /* Check arguments. */
     HDassert(sect);
@@ -266,11 +262,11 @@ H5MF_sect_free(H5FS_section_info_t *_sect)
     sect = H5FL_FREE(H5MF_free_section_t, sect);
 
     FUNC_LEAVE_NOAPI(SUCCEED)
-}   /* H5MF_sect_free() */
+}   /* H5MF__sect_free() */
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5MF_sect_deserialize
+ * Function:	H5MF__sect_deserialize
  *
  * Purpose:	Deserialize a buffer into a "live" section
  *
@@ -283,14 +279,14 @@ H5MF_sect_free(H5FS_section_info_t *_sect)
  *-------------------------------------------------------------------------
  */
 static H5FS_section_info_t *
-H5MF_sect_deserialize(const H5FS_section_class_t *cls,
+H5MF__sect_deserialize(const H5FS_section_class_t *cls,
     const uint8_t H5_ATTR_UNUSED *buf, haddr_t sect_addr,
     hsize_t sect_size, unsigned H5_ATTR_UNUSED *des_flags)
 {
     H5MF_free_section_t *sect;          /* New section */
     H5FS_section_info_t *ret_value = NULL;      /* Return value */
 
-    FUNC_ENTER_NOAPI_NOINIT
+    FUNC_ENTER_STATIC
 
     /* Check arguments. */
     HDassert(cls);
@@ -298,7 +294,7 @@ H5MF_sect_deserialize(const H5FS_section_class_t *cls,
     HDassert(sect_size);
 
     /* Create free space section for block */
-    if(NULL == (sect = H5MF_sect_new(cls->type, sect_addr, sect_size)))
+    if(NULL == (sect = H5MF__sect_new(cls->type, sect_addr, sect_size)))
         HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, NULL, "can't initialize free space section")
 
     /* Set return value */
@@ -306,11 +302,11 @@ H5MF_sect_deserialize(const H5FS_section_class_t *cls,
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
-} /* H5MF_sect_deserialize() */
+} /* H5MF__sect_deserialize() */
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5MF_sect_valid
+ * Function:	H5MF__sect_valid
  *
  * Purpose:	Check the validity of a section
  *
@@ -323,7 +319,7 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5MF_sect_valid(const H5FS_section_class_t H5_ATTR_UNUSED *cls,
+H5MF__sect_valid(const H5FS_section_class_t H5_ATTR_UNUSED *cls,
     const H5FS_section_info_t
 #ifdef NDEBUG
     H5_ATTR_UNUSED
@@ -334,17 +330,17 @@ H5MF_sect_valid(const H5FS_section_class_t H5_ATTR_UNUSED *cls,
     const H5MF_free_section_t *sect = (const H5MF_free_section_t *)_sect;   /* File free section */
 #endif /* NDEBUG */
 
-    FUNC_ENTER_NOAPI_NOINIT_NOERR
+    FUNC_ENTER_STATIC_NOERR
 
     /* Check arguments. */
     HDassert(sect);
 
     FUNC_LEAVE_NOAPI(SUCCEED)
-}   /* H5MF_sect_valid() */
+}   /* H5MF__sect_valid() */
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5MF_sect_split
+ * Function:	H5MF__sect_split
  *
  * Purpose:	Split SECT into 2 sections: fragment for alignment & the aligned section
  *          SECT's addr and size are updated to point to the aligned section
@@ -357,14 +353,14 @@ H5MF_sect_valid(const H5FS_section_class_t H5_ATTR_UNUSED *cls,
  *-------------------------------------------------------------------------
  */
 static H5FS_section_info_t *
-H5MF_sect_split(H5FS_section_info_t *sect, hsize_t frag_size)
+H5MF__sect_split(H5FS_section_info_t *sect, hsize_t frag_size)
 {
     H5MF_free_section_t *ret_value = NULL;      /* Return value */
 
-    FUNC_ENTER_NOAPI_NOINIT
+    FUNC_ENTER_STATIC
 
     /* Allocate space for new section */
-    if(NULL == (ret_value = H5MF_sect_new(sect->type, sect->addr, frag_size)))
+    if(NULL == (ret_value = H5MF__sect_new(sect->type, sect->addr, frag_size)))
         HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, NULL, "can't initialize free space section")
 
     /* Set new section's info */
@@ -373,14 +369,14 @@ H5MF_sect_split(H5FS_section_info_t *sect, hsize_t frag_size)
 
 done:
     FUNC_LEAVE_NOAPI((H5FS_section_info_t *)ret_value)
-} /* end H5MF_sect_split() */
+} /* end H5MF__sect_split() */
 
 /* 
  * "simple" section callbacks
  */
 
 /*-------------------------------------------------------------------------
- * Function:	H5MF_sect_simple_can_merge
+ * Function:	H5MF__sect_simple_can_merge
  *
  * Purpose:	Can two sections of this type merge?
  *
@@ -395,14 +391,14 @@ done:
  *-------------------------------------------------------------------------
  */
 static htri_t
-H5MF_sect_simple_can_merge(const H5FS_section_info_t *_sect1,
+H5MF__sect_simple_can_merge(const H5FS_section_info_t *_sect1,
     const H5FS_section_info_t *_sect2, void H5_ATTR_UNUSED *_udata)
 {
     const H5MF_free_section_t *sect1 = (const H5MF_free_section_t *)_sect1;   /* File free section */
     const H5MF_free_section_t *sect2 = (const H5MF_free_section_t *)_sect2;   /* File free section */
     htri_t ret_value = FAIL;            /* Return value */
 
-    FUNC_ENTER_NOAPI_NOINIT_NOERR
+    FUNC_ENTER_STATIC_NOERR
 
     /* Check arguments. */
     HDassert(sect1);
@@ -414,11 +410,11 @@ H5MF_sect_simple_can_merge(const H5FS_section_info_t *_sect1,
     ret_value = H5F_addr_eq(sect1->sect_info.addr + sect1->sect_info.size, sect2->sect_info.addr);
 
     FUNC_LEAVE_NOAPI(ret_value)
-} /* H5MF_sect_simple_can_merge() */
+} /* H5MF__sect_simple_can_merge() */
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5MF_sect_simple_merge
+ * Function:	H5MF__sect_simple_merge
  *
  * Purpose:	Merge two sections of this type
  *
@@ -433,14 +429,14 @@ H5MF_sect_simple_can_merge(const H5FS_section_info_t *_sect1,
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5MF_sect_simple_merge(H5FS_section_info_t **_sect1, H5FS_section_info_t *_sect2,
+H5MF__sect_simple_merge(H5FS_section_info_t **_sect1, H5FS_section_info_t *_sect2,
     void H5_ATTR_UNUSED *_udata)
 {
     H5MF_free_section_t **sect1 = (H5MF_free_section_t **)_sect1;   /* File free section */
     H5MF_free_section_t *sect2 = (H5MF_free_section_t *)_sect2;   /* File free section */
     herr_t ret_value = SUCCEED;         /* Return value */
 
-    FUNC_ENTER_NOAPI_NOINIT
+    FUNC_ENTER_STATIC
 
     /* Check arguments. */
     HDassert(sect1);
@@ -453,16 +449,16 @@ H5MF_sect_simple_merge(H5FS_section_info_t **_sect1, H5FS_section_info_t *_sect2
     (*sect1)->sect_info.size += sect2->sect_info.size;
 
     /* Get rid of second section */
-    if(H5MF_sect_free((H5FS_section_info_t *)sect2) < 0)
+    if(H5MF__sect_free((H5FS_section_info_t *)sect2) < 0)
         HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't free section node")
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
-} /* H5MF_sect_simple_merge() */
+} /* H5MF__sect_simple_merge() */
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5MF_sect_simple_can_shrink
+ * Function:	H5MF__sect_simple_can_shrink
  *
  * Purpose:	Can this section shrink the container?
  *
@@ -475,7 +471,7 @@ done:
  *-------------------------------------------------------------------------
  */
 static htri_t
-H5MF_sect_simple_can_shrink(const H5FS_section_info_t *_sect, void *_udata)
+H5MF__sect_simple_can_shrink(const H5FS_section_info_t *_sect, void *_udata)
 {
     const H5MF_free_section_t *sect = (const H5MF_free_section_t *)_sect;   /* File free section */
     H5MF_sect_ud_t *udata = (H5MF_sect_ud_t *)_udata;   /* User data for callback */
@@ -483,7 +479,7 @@ H5MF_sect_simple_can_shrink(const H5FS_section_info_t *_sect, void *_udata)
     haddr_t end;                /* End of section to extend */
     htri_t ret_value = FAIL;    /* Return value */
 
-    FUNC_ENTER_NOAPI_NOINIT
+    FUNC_ENTER_STATIC
 
     /* Check arguments. */
     HDassert(sect);
@@ -518,7 +514,7 @@ HDfprintf(stderr, "%s: section {%a, %Hu}, shrinks file, eoa = %a\n", FUNC, sect-
             htri_t status;              /* Status from aggregator adjoin */
 
             /* See if section can absorb the aggregator & vice versa */
-            if((status = H5MF_aggr_can_absorb(udata->f, &(udata->f->shared->meta_aggr), sect, &(udata->shrink))) < 0)
+            if((status = H5MF__aggr_can_absorb(udata->f, &(udata->f->shared->meta_aggr), sect, &(udata->shrink))) < 0)
                 HGOTO_ERROR(H5E_RESOURCE, H5E_CANTMERGE, FAIL, "error merging section with aggregation block")
             else if(status > 0) {
                 /* Set the aggregator to operate on */
@@ -537,7 +533,7 @@ HDfprintf(stderr, "%s: section {%a, %Hu}, adjoins metadata aggregator\n", FUNC,
             htri_t status;              /* Status from aggregator adjoin */
 
             /* See if section can absorb the aggregator & vice versa */
-            if((status = H5MF_aggr_can_absorb(udata->f, &(udata->f->shared->sdata_aggr), sect, &(udata->shrink))) < 0)
+            if((status = H5MF__aggr_can_absorb(udata->f, &(udata->f->shared->sdata_aggr), sect, &(udata->shrink))) < 0)
                 HGOTO_ERROR(H5E_RESOURCE, H5E_CANTMERGE, FAIL, "error merging section with aggregation block")
             else if(status > 0) {
                 /* Set the aggregator to operate on */
@@ -557,11 +553,11 @@ HDfprintf(stderr, "%s: section {%a, %Hu}, adjoins small data aggregator\n", FUNC
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
-} /* H5MF_sect_simple_can_shrink() */
+} /* H5MF__sect_simple_can_shrink() */
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5MF_sect_simple_shrink
+ * Function:	H5MF__sect_simple_shrink
  *
  * Purpose:	Shrink container with section
  *
@@ -574,13 +570,13 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5MF_sect_simple_shrink(H5FS_section_info_t **_sect, void *_udata)
+H5MF__sect_simple_shrink(H5FS_section_info_t **_sect, void *_udata)
 {
     H5MF_free_section_t **sect = (H5MF_free_section_t **)_sect;   /* File free section */
     H5MF_sect_ud_t *udata = (H5MF_sect_ud_t *)_udata;   /* User data for callback */
     herr_t ret_value = SUCCEED;         /* Return value */
 
-    FUNC_ENTER_NOAPI_NOINIT
+    FUNC_ENTER_STATIC
 
     /* Check arguments. */
     HDassert(sect);
@@ -601,14 +597,14 @@ H5MF_sect_simple_shrink(H5FS_section_info_t **_sect, void *_udata)
         HDassert(udata->aggr);
 
         /* Absorb the section into the aggregator or vice versa */
-        if(H5MF_aggr_absorb(udata->f, udata->aggr, *sect, udata->allow_sect_absorb) < 0)
+        if(H5MF__aggr_absorb(udata->f, udata->aggr, *sect, udata->allow_sect_absorb) < 0)
             HGOTO_ERROR(H5E_RESOURCE, H5E_CANTMERGE, FAIL, "can't absorb section into aggregator or vice versa")
     } /* end else */
 
     /* Check for freeing section */
     if(udata->shrink != H5MF_SHRINK_SECT_ABSORB_AGGR) {
         /* Free section */
-        if(H5MF_sect_free((H5FS_section_info_t *)*sect) < 0)
+        if(H5MF__sect_free((H5FS_section_info_t *)*sect) < 0)
             HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't free simple section node")
 
         /* Mark section as freed, for free space manager */
@@ -617,7 +613,7 @@ H5MF_sect_simple_shrink(H5FS_section_info_t **_sect, void *_udata)
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
-} /* H5MF_sect_simple_shrink() */
+} /* H5MF__sect_simple_shrink() */
 
 /* 
  * "small" section callbacks
@@ -625,7 +621,7 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:    H5MF_sect_small_add
+ * Function:    H5MF__sect_small_add
  *
  * Purpose:     Perform actions on a small "meta" action before adding it to the free space manager:
  *              1) Drop the section if it is at page end and its size <= page end threshold
@@ -640,7 +636,7 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5MF_sect_small_add(H5FS_section_info_t **_sect, unsigned *flags, void *_udata)
+H5MF__sect_small_add(H5FS_section_info_t **_sect, unsigned *flags, void *_udata)
 {
     H5MF_free_section_t **sect = (H5MF_free_section_t **)_sect;   /* Fractal heap free section */
     H5MF_sect_ud_t *udata = (H5MF_sect_ud_t *)_udata;   /* User data for callback */
@@ -648,7 +644,7 @@ H5MF_sect_small_add(H5FS_section_info_t **_sect, unsigned *flags, void *_udata)
     hsize_t rem, prem;
     herr_t ret_value = SUCCEED;         /* Return value */
 
-    FUNC_ENTER_NOAPI_NOINIT
+    FUNC_ENTER_STATIC
 
 #ifdef H5MF_ALLOC_DEBUG_MORE
 HDfprintf(stderr, "%s: Entering, section {%a, %Hu}\n", FUNC, (*sect)->sect_info.addr, (*sect)->sect_info.size);
@@ -664,7 +660,7 @@ HDfprintf(stderr, "%s: Entering, section {%a, %Hu}\n", FUNC, (*sect)->sect_info.
 
     /* Drop the section if it is at page end and its size is <= pgend threshold */
     if(!rem && (*sect)->sect_info.size <= H5F_PGEND_META_THRES(udata->f) && (*flags & H5FS_ADD_RETURNED_SPACE)) {
-        if(H5MF_sect_free((H5FS_section_info_t *)(*sect)) < 0)
+        if(H5MF__sect_free((H5FS_section_info_t *)(*sect)) < 0)
             HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't free section node")
         *sect = NULL;
         *flags &= (unsigned)~H5FS_ADD_RETURNED_SPACE;
@@ -684,122 +680,11 @@ HDfprintf(stderr, "%s: section is adjusted {%a, %Hu}\n", FUNC, (*sect)->sect_inf
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
-} /* H5MF_sect_small_add() */
-
-
-/*-------------------------------------------------------------------------
- * Function:	H5MF_sect_small_can_shrink
- *
- * Purpose:	Can this section shrink the container?
- *
- * Note: 	A small section is allowed to shrink only at closing.
- *
- * Note:	This is unused currently, to maintain the invariant that the
- *		file size is always a multiple of the page size.
- *
- *		(This function should probably be deleted, or the invariant
- *		relaxed)
- *
- * Return:	Success:	non-negative (TRUE/FALSE)
- *          Failure:	negative
- *
- * Programmer:	Vailin Choi; Dec 2012
- *
- *-------------------------------------------------------------------------
- */
-static htri_t
-H5MF_sect_small_can_shrink(const H5FS_section_info_t *_sect, void *_udata)
-{
-    const H5MF_free_section_t *sect = (const H5MF_free_section_t *)_sect;   /* File free section */
-    H5MF_sect_ud_t *udata = (H5MF_sect_ud_t *)_udata;   /* User data for callback */
-    haddr_t eoa;                /* End of address space in the file */
-    haddr_t end;                /* End of section to extend */
-    htri_t ret_value = FALSE;	/* Return value */
-
-    FUNC_ENTER_NOAPI_NOINIT
-
-    /* Check arguments. */
-    HDassert(sect);
-    HDassert(udata);
-    HDassert(udata->f);
-
-    /* Retrieve the end of the file's address space */
-    if(HADDR_UNDEF == (eoa = H5FD_get_eoa(udata->f->shared->lf, udata->alloc_type)))
-        HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "driver get_eoa request failed")
-
-    /* Compute address of end of section to check */
-    end = sect->sect_info.addr + sect->sect_info.size;
-
-    /* Check if the section is exactly at the end of the allocated space in the file */
-    if(H5F_addr_eq(end, eoa) && sect->sect_info.size == udata->f->shared->fs_page_size) {
-        udata->shrink = H5MF_SHRINK_EOA;
-
-#ifdef H5MF_ALLOC_DEBUG_MORE
-HDfprintf(stderr, "%s: section {%a, %Hu}, shrinks file, eoa = %a\n", FUNC, sect->sect_info.addr, sect->sect_info.size, eoa);
-#endif /* H5MF_ALLOC_DEBUG_MORE */
-
-        /* Indicate shrinking can occur */
-        HGOTO_DONE(TRUE)
-    } /* end if */
-
-done:
-    FUNC_LEAVE_NOAPI(ret_value)
-} /* H5MF_sect_small_can_shrink() */
-
-
-/*-------------------------------------------------------------------------
- * Function:	H5MF_sect_small_shrink
- *
- * Purpose:	Shrink container with section
- *
- * Note:	This is unused currently, to maintain the invariant that the
- *		file size is always a multiple of the page size.
- *
- *		(This function should probably be deleted, or the invariant
- *		relaxed)
- *
- * Return:	Success:	non-negative
- *          Failure:	negative 
- * 
- * Programmer:	Vailin Choi; Dec 2012
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5MF_sect_small_shrink(H5FS_section_info_t **_sect, void *_udata)
-{
-    H5MF_free_section_t **sect = (H5MF_free_section_t **)_sect;   /* File free section */
-    H5MF_sect_ud_t *udata = (H5MF_sect_ud_t *)_udata;   /* User data for callback */
-    herr_t ret_value = SUCCEED;         /* Return value */
-
-    FUNC_ENTER_NOAPI_NOINIT
-
-    /* Check arguments. */
-    HDassert(sect);
-    HDassert((*sect)->sect_info.type == H5MF_FSPACE_SECT_SMALL);
-    HDassert(udata);
-    HDassert(udata->f);
-    HDassert(udata->shrink == H5MF_SHRINK_EOA);
-    HDassert(H5F_INTENT(udata->f) & H5F_ACC_RDWR);
-
-    /* Release section's space at EOA */
-    if(H5F__free(udata->f, udata->alloc_type, (*sect)->sect_info.addr, (*sect)->sect_info.size) < 0)
-        HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, FAIL, "driver free request failed")
-
-    /* Free section */
-    if(H5MF_sect_free((H5FS_section_info_t *)*sect) < 0)
-        HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't free simple section node")
-
-    /* Mark section as freed, for free space manager */
-    *sect = NULL;
-
-done:
-    FUNC_LEAVE_NOAPI(ret_value)
-} /* H5MF_sect_small_shrink() */
+} /* H5MF__sect_small_add() */
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5MF_sect_small_can_merge
+ * Function:	H5MF__sect_small_can_merge
  *
  * Purpose:	Can two sections of this type merge?
  *
@@ -814,7 +699,7 @@ done:
  *-------------------------------------------------------------------------
  */
 static htri_t
-H5MF_sect_small_can_merge(const H5FS_section_info_t *_sect1,
+H5MF__sect_small_can_merge(const H5FS_section_info_t *_sect1,
     const H5FS_section_info_t *_sect2, void *_udata)
 {
     const H5MF_free_section_t *sect1 = (const H5MF_free_section_t *)_sect1;   /* File free section */
@@ -822,7 +707,7 @@ H5MF_sect_small_can_merge(const H5FS_section_info_t *_sect1,
     H5MF_sect_ud_t *udata = (H5MF_sect_ud_t *)_udata;   /* User data for callback */
     htri_t ret_value = FALSE;                   	/* Return value */
 
-    FUNC_ENTER_NOAPI_NOINIT_NOERR
+    FUNC_ENTER_STATIC_NOERR
 
     /* Check arguments. */
     HDassert(sect1);
@@ -842,11 +727,11 @@ HDfprintf(stderr, "%s: Leaving: ret_value = %t\n", FUNC, ret_value);
 #endif /* H5MF_ALLOC_DEBUG_MORE */
 
     FUNC_LEAVE_NOAPI(ret_value)
-} /* H5MF_sect_small_can_merge() */
+} /* H5MF__sect_small_can_merge() */
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5MF_sect_small_merge
+ * Function:	H5MF__sect_small_merge
  *
  * Purpose:	Merge two sections of this type
  *
@@ -862,7 +747,7 @@ HDfprintf(stderr, "%s: Leaving: ret_value = %t\n", FUNC, ret_value);
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5MF_sect_small_merge(H5FS_section_info_t **_sect1, H5FS_section_info_t *_sect2,
+H5MF__sect_small_merge(H5FS_section_info_t **_sect1, H5FS_section_info_t *_sect2,
     void *_udata)
 {
     H5MF_free_section_t **sect1 = (H5MF_free_section_t **)_sect1;   /* File free section */
@@ -870,7 +755,7 @@ H5MF_sect_small_merge(H5FS_section_info_t **_sect1, H5FS_section_info_t *_sect2,
     H5MF_sect_ud_t *udata = (H5MF_sect_ud_t *)_udata;   /* User data for callback */
     herr_t ret_value = SUCCEED;         		/* Return value */
 
-    FUNC_ENTER_NOAPI_NOINIT
+    FUNC_ENTER_STATIC
 
     /* Check arguments. */
     HDassert(sect1);
@@ -894,18 +779,18 @@ H5MF_sect_small_merge(H5FS_section_info_t **_sect1, H5FS_section_info_t *_sect2,
             if(H5PB_remove_entry(udata->f, (*sect1)->sect_info.addr) < 0)
                 HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, FAIL, "can't free merged section")
 
-        if(H5MF_sect_free((H5FS_section_info_t *)(*sect1)) < 0)
+        if(H5MF__sect_free((H5FS_section_info_t *)(*sect1)) < 0)
             HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't free section node")
         *sect1 = NULL;
     } /* end if */
 
     /* Get rid of second section */
-    if(H5MF_sect_free((H5FS_section_info_t *)sect2) < 0)
+    if(H5MF__sect_free((H5FS_section_info_t *)sect2) < 0)
         HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't free section node")
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
-} /* H5MF_sect_small_merge() */
+} /* H5MF__sect_small_merge() */
 
 /* 
  * "Large" section callbacks
@@ -913,7 +798,7 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5MF_sect_large_can_merge (same as H5MF_sect_simple_can_merge)
+ * Function:	H5MF__sect_large_can_merge (same as H5MF__sect_simple_can_merge)
  *
  * Purpose:	Can two sections of this type merge?
  *
@@ -927,14 +812,14 @@ done:
  *-------------------------------------------------------------------------
  */
 static htri_t
-H5MF_sect_large_can_merge(const H5FS_section_info_t *_sect1,
+H5MF__sect_large_can_merge(const H5FS_section_info_t *_sect1,
     const H5FS_section_info_t *_sect2, void H5_ATTR_UNUSED *_udata)
 {
     const H5MF_free_section_t *sect1 = (const H5MF_free_section_t *)_sect1;   	/* File free section */
     const H5MF_free_section_t *sect2 = (const H5MF_free_section_t *)_sect2;   	/* File free section */
     htri_t ret_value = FALSE;           /* Return value */
 
-    FUNC_ENTER_NOAPI_NOINIT_NOERR
+    FUNC_ENTER_STATIC_NOERR
 
     /* Check arguments. */
     HDassert(sect1);
@@ -949,11 +834,11 @@ HDfprintf(stderr, "%s: Leaving: ret_value = %t\n", FUNC, ret_value);
 #endif /* H5MF_ALLOC_DEBUG_MORE */
 
     FUNC_LEAVE_NOAPI(ret_value)
-} /* H5MF_sect_large_can_merge() */
+} /* H5MF__sect_large_can_merge() */
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5MF_sect_large_merge (same as H5MF_sect_simple_merge)
+ * Function:	H5MF__sect_large_merge (same as H5MF__sect_simple_merge)
  *
  * Purpose:	Merge two sections of this type
  *
@@ -967,14 +852,14 @@ HDfprintf(stderr, "%s: Leaving: ret_value = %t\n", FUNC, ret_value);
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5MF_sect_large_merge(H5FS_section_info_t **_sect1, H5FS_section_info_t *_sect2,
+H5MF__sect_large_merge(H5FS_section_info_t **_sect1, H5FS_section_info_t *_sect2,
     void H5_ATTR_UNUSED *_udata)
 {
     H5MF_free_section_t **sect1 = (H5MF_free_section_t **)_sect1;   /* File free section */
     H5MF_free_section_t *sect2 = (H5MF_free_section_t *)_sect2;   /* File free section */
     herr_t ret_value = SUCCEED;         /* Return value */
 
-    FUNC_ENTER_NOAPI_NOINIT
+    FUNC_ENTER_STATIC
 
     /* Check arguments. */
     HDassert(sect1);
@@ -987,16 +872,16 @@ H5MF_sect_large_merge(H5FS_section_info_t **_sect1, H5FS_section_info_t *_sect2,
     (*sect1)->sect_info.size += sect2->sect_info.size;
 
     /* Get rid of second section */
-    if(H5MF_sect_free((H5FS_section_info_t *)sect2) < 0)
+    if(H5MF__sect_free((H5FS_section_info_t *)sect2) < 0)
         HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't free section node")
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
-} /* H5MF_sect_large_merge() */
+} /* H5MF__sect_large_merge() */
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5MF_sect_large_can_shrink
+ * Function:	H5MF__sect_large_can_shrink
  *
  * Purpose:	Can this section shrink the container?
  *
@@ -1008,7 +893,7 @@ done:
  *-------------------------------------------------------------------------
  */
 static htri_t
-H5MF_sect_large_can_shrink(const H5FS_section_info_t *_sect, void *_udata)
+H5MF__sect_large_can_shrink(const H5FS_section_info_t *_sect, void *_udata)
 {
     const H5MF_free_section_t *sect = (const H5MF_free_section_t *)_sect;   /* File free section */
     H5MF_sect_ud_t *udata = (H5MF_sect_ud_t *)_udata;   /* User data for callback */
@@ -1016,7 +901,7 @@ H5MF_sect_large_can_shrink(const H5FS_section_info_t *_sect, void *_udata)
     haddr_t end;                /* End of section to extend */
     htri_t ret_value = FALSE;	/* Return value */
 
-    FUNC_ENTER_NOAPI_NOINIT
+    FUNC_ENTER_STATIC
 
     /* Check arguments. */
     HDassert(sect);
@@ -1045,11 +930,11 @@ HDfprintf(stderr, "%s: section {%a, %Hu}, shrinks file, eoa = %a\n", FUNC, sect-
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
-} /* H5MF_sect_large_can_shrink() */
+} /* H5MF__sect_large_can_shrink() */
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5MF_sect_large_shrink
+ * Function:	H5MF__sect_large_shrink
  *
  * Purpose:     Shrink a large-sized section
  *
@@ -1061,14 +946,14 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5MF_sect_large_shrink(H5FS_section_info_t **_sect, void *_udata)
+H5MF__sect_large_shrink(H5FS_section_info_t **_sect, void *_udata)
 {
     H5MF_free_section_t **sect = (H5MF_free_section_t **)_sect; /* File free section */
     H5MF_sect_ud_t *udata = (H5MF_sect_ud_t *)_udata;           /* User data for callback */
     hsize_t frag_size = 0;              /* Fragment size */
     herr_t ret_value = SUCCEED;         /* Return value */
 
-    FUNC_ENTER_NOAPI_NOINIT
+    FUNC_ENTER_STATIC
 
     /* Check arguments. */
     HDassert(sect);
@@ -1091,7 +976,7 @@ H5MF_sect_large_shrink(H5FS_section_info_t **_sect, void *_udata)
         (*sect)->sect_info.size = frag_size;
     else {
         /* Free section */
-        if(H5MF_sect_free((H5FS_section_info_t *)*sect) < 0)
+        if(H5MF__sect_free((H5FS_section_info_t *)*sect) < 0)
             HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't free simple section node")
 
         /* Mark section as freed, for free space manager */
@@ -1100,5 +985,5 @@ H5MF_sect_large_shrink(H5FS_section_info_t **_sect, void *_udata)
 
 done:
     FUNC_LEAVE_NOAPI(ret_value)
-} /* H5MF_sect_large_shrink() */
+} /* H5MF__sect_large_shrink() */
 
diff --git a/src/H5O.c b/src/H5O.c
index f700ac9..c5db814 100644
--- a/src/H5O.c
+++ b/src/H5O.c
@@ -435,63 +435,70 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Oget_info
+ * Function:    H5Oget_info2
  *
- * Purpose:	Retrieve information about an object.
+ * Purpose:     Retrieve information about an object.
  *
- * Return:	Success:	Non-negative
- *		Failure:	Negative
+ *              NOTE: Add a parameter "fields" to indicate selection of object info.
  *
- * Programmer:	Quincey Koziol
- *		November 21 2006
+ * Return:      Success:        Non-negative
+ *              Failure:        Negative
+ *
+ * Programmer:  Neil Fortner
+ *              July 7 2010
  *
  *-------------------------------------------------------------------------
  */
 herr_t
-H5Oget_info(hid_t loc_id, H5O_info_t *oinfo)
+H5Oget_info2(hid_t loc_id, H5O_info_t *oinfo, unsigned fields)
 {
-    H5G_loc_t	loc;                    /* Location of group */
+    H5G_loc_t   loc;                    /* Location of group */
     herr_t      ret_value = SUCCEED;    /* Return value */
 
     FUNC_ENTER_API(FAIL)
-    H5TRACE2("e", "i*x", loc_id, oinfo);
+    H5TRACE3("e", "i*xIu", loc_id, oinfo, fields);
 
     /* Check args */
     if(H5G_loc(loc_id, &loc) < 0)
         HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location")
     if(!oinfo)
         HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no info struct")
+    if(fields & ~H5O_INFO_ALL)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid fields")
 
     /* Retrieve the object's information */
-    if(H5O__get_info_by_name(&loc, ".", oinfo/*out*/) < 0)
+    if(H5O__get_info_by_name(&loc, ".", oinfo/*out*/, fields) < 0)
         HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't get info for object")
 
 done:
     FUNC_LEAVE_API(ret_value)
-} /* end H5Oget_info() */
+} /* end H5Oget_info2() */
 
 
-/*-------------------------------------------------------------------------
- * Function:	H5Oget_info_by_name
- *
- * Purpose:	Retrieve information about an object.
- *
- * Return:	Success:	Non-negative
- *		Failure:	Negative
- *
- * Programmer:	Quincey Koziol
- *		November 21 2006
- *
- *-------------------------------------------------------------------------
- */
+ /*-------------------------------------------------------------------------
+  * Function:   H5Oget_info_by_name2
+  *
+  * Purpose:    Retrieve information about an object.
+  *
+  *             NOTE: Add a parameter "fields" to indicate selection of object info.
+  *
+  * Return:     Success:        Non-negative
+  *             Failure:        Negative
+  *
+  * Programmer:  Neil Fortner
+  *              July 7 2010
+  *
+  *-------------------------------------------------------------------------
+  */
 herr_t
-H5Oget_info_by_name(hid_t loc_id, const char *name, H5O_info_t *oinfo, hid_t lapl_id)
+H5Oget_info_by_name2(hid_t loc_id, const char *name, H5O_info_t *oinfo,
+    unsigned fields, hid_t lapl_id)
 {
     H5G_loc_t	loc;                    /* Location of group */
     herr_t      ret_value = SUCCEED;    /* Return value */
 
     FUNC_ENTER_API(FAIL)
-    H5TRACE4("e", "i*s*xi", loc_id, name, oinfo, lapl_id);
+    H5TRACE5("e", "i*s*xIui", loc_id, name, oinfo, fields, lapl_id);
 
     /* Check args */
     if(H5G_loc(loc_id, &loc) < 0)
@@ -500,44 +507,48 @@ H5Oget_info_by_name(hid_t loc_id, const char *name, H5O_info_t *oinfo, hid_t lap
         HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no name")
     if(!oinfo)
         HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no info struct")
+    if(fields & ~H5O_INFO_ALL)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid fields")
 
     /* Verify access property list and set up collective metadata if appropriate */
     if(H5CX_set_apl(&lapl_id, H5P_CLS_LACC, loc_id, FALSE) < 0)
         HGOTO_ERROR(H5E_OHDR, H5E_CANTSET, FAIL, "can't set access property list info")
 
     /* Retrieve the object's information */
-    if(H5O__get_info_by_name(&loc, name, oinfo/*out*/) < 0)
+    if(H5O__get_info_by_name(&loc, name, oinfo/*out*/, fields) < 0)
         HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't get info for object: '%s'", name)
 
 done:
     FUNC_LEAVE_API(ret_value)
-} /* end H5Oget_info_by_name() */
+} /* end H5Oget_info_by_name2() */
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Oget_info_by_idx
+ * Function:    H5Oget_info_by_idx2
  *
- * Purpose:	Retrieve information about an object, according to the order
+ * Purpose:     Retrieve information about an object, according to the order
  *              of an index.
  *
- * Return:	Success:	Non-negative
- *		Failure:	Negative
+ *              NOTE: Add a parameter "fields" to indicate selection of object info.
+ *
+ * Return:      Success:	Non-negative
+ *              Failure:	Negative
  *
  * Programmer:	Quincey Koziol
- *		November 26 2006
+ *              November 26 2006
  *
  *-------------------------------------------------------------------------
  */
 herr_t
-H5Oget_info_by_idx(hid_t loc_id, const char *group_name, H5_index_t idx_type,
-    H5_iter_order_t order, hsize_t n, H5O_info_t *oinfo, hid_t lapl_id)
+H5Oget_info_by_idx2(hid_t loc_id, const char *group_name, H5_index_t idx_type,
+    H5_iter_order_t order, hsize_t n, H5O_info_t *oinfo, unsigned fields, hid_t lapl_id)
 {
     H5G_loc_t	loc;                    /* Location of group */
     herr_t      ret_value = SUCCEED;    /* Return value */
 
     FUNC_ENTER_API(FAIL)
-    H5TRACE7("e", "i*sIiIoh*xi", loc_id, group_name, idx_type, order, n, oinfo,
-             lapl_id);
+    H5TRACE8("e", "i*sIiIoh*xIui", loc_id, group_name, idx_type, order, n, oinfo,
+             fields, lapl_id);
 
     /* Check args */
     if(H5G_loc(loc_id, &loc) < 0)
@@ -550,18 +561,20 @@ H5Oget_info_by_idx(hid_t loc_id, const char *group_name, H5_index_t idx_type,
         HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid iteration order specified")
     if(!oinfo)
         HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no info struct")
+    if(fields & ~H5O_INFO_ALL)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid fields")
 
     /* Verify access property list and set up collective metadata if appropriate */
     if(H5CX_set_apl(&lapl_id, H5P_CLS_LACC, loc_id, FALSE) < 0)
         HGOTO_ERROR(H5E_OHDR, H5E_CANTSET, FAIL, "can't set access property list info")
 
     /* Retrieve the object's information */
-    if(H5O__get_info_by_idx(&loc, group_name, idx_type, order, n, oinfo) < 0)
+    if(H5O__get_info_by_idx(&loc, group_name, idx_type, order, n, oinfo, fields) < 0)
         HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't get info for object")
 
 done:
     FUNC_LEAVE_API(ret_value)
-} /* end H5Oget_info_by_idx() */
+} /* end H5Oget_info_by_idx2() */
 
 
 /*-------------------------------------------------------------------------
@@ -737,9 +750,9 @@ done:
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Ovisit
+ * Function:	H5Ovisit2
  *
- * Purpose:	Recursively visit an object and all the objects reachable
+ * Purpose:	    Recursively visit an object and all the objects reachable
  *              from it.  If the starting object is a group, all the objects
  *              linked to from that group will be visited.  Links within
  *              each group are visited according to the order within the
@@ -755,27 +768,30 @@ done:
  *              iteration index and iteration order given) will be used to in
  *              the callback about the object.
  *
- * Return:	Success:	The return value of the first operator that
+ *              NOTE: Add a a parameter "fields" to indicate selection of
+ *              object info to be retrieved to the callback "op".
+ *
+ * Return:      Success:    The return value of the first operator that
  *				returns non-zero, or zero if all members were
  *				processed with no operator returning non-zero.
  *
- *		Failure:	Negative if something goes wrong within the
+ *              Failure:    Negative if something goes wrong within the
  *				library, or the negative value returned by one
  *				of the operators.
  *
  * Programmer:	Quincey Koziol
- *		November 25 2007
+ *              November 25 2007
  *
  *-------------------------------------------------------------------------
  */
 herr_t
-H5Ovisit(hid_t obj_id, H5_index_t idx_type, H5_iter_order_t order,
-    H5O_iterate_t op, void *op_data)
+H5Ovisit2(hid_t obj_id, H5_index_t idx_type, H5_iter_order_t order,
+    H5O_iterate_t op, void *op_data, unsigned fields)
 {
     herr_t      ret_value;              /* Return value */
 
     FUNC_ENTER_API(FAIL)
-    H5TRACE5("e", "iIiIox*x", obj_id, idx_type, order, op, op_data);
+    H5TRACE6("e", "iIiIox*xIu", obj_id, idx_type, order, op, op_data, fields);
 
     /* Check args */
     if(idx_type <= H5_INDEX_UNKNOWN || idx_type >= H5_INDEX_N)
@@ -784,20 +800,22 @@ H5Ovisit(hid_t obj_id, H5_index_t idx_type, H5_iter_order_t order,
         HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid iteration order specified")
     if(!op)
         HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no callback operator specified")
+    if(fields & ~H5O_INFO_ALL)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid fields")
 
     /* Call internal object visitation routine */
-    if((ret_value = H5O__visit(obj_id, ".", idx_type, order, op, op_data)) < 0)
+    if((ret_value = H5O__visit(obj_id, ".", idx_type, order, op, op_data, fields)) < 0)
         HGOTO_ERROR(H5E_OHDR, H5E_BADITER, FAIL, "object visitation failed")
 
 done:
     FUNC_LEAVE_API(ret_value)
-} /* end H5Ovisit() */
+} /* end H5Ovisit2() */
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5Ovisit_by_name
+ * Function:	H5Ovisit_by_name2
  *
- * Purpose:	Recursively visit an object and all the objects reachable
+ * Purpose:     Recursively visit an object and all the objects reachable
  *              from it.  If the starting object is a group, all the objects
  *              linked to from that group will be visited.  Links within
  *              each group are visited according to the order within the
@@ -813,28 +831,31 @@ done:
  *              iteration index and iteration order given) will be used to in
  *              the callback about the object.
  *
- * Return:	Success:	The return value of the first operator that
+ *              NOTE: Add a a parameter "fields" to indicate selection of
+ *              object info to be retrieved to the callback "op".
+ *
+ * Return:      Success:    The return value of the first operator that
  *				returns non-zero, or zero if all members were
  *				processed with no operator returning non-zero.
  *
- *		Failure:	Negative if something goes wrong within the
+ *	            Failure:    Negative if something goes wrong within the
  *				library, or the negative value returned by one
  *				of the operators.
  *
  * Programmer:	Quincey Koziol
- *		November 24 2007
+ *              November 24 2007
  *
  *-------------------------------------------------------------------------
  */
 herr_t
-H5Ovisit_by_name(hid_t loc_id, const char *obj_name, H5_index_t idx_type,
-    H5_iter_order_t order, H5O_iterate_t op, void *op_data, hid_t lapl_id)
+H5Ovisit_by_name2(hid_t loc_id, const char *obj_name, H5_index_t idx_type,
+    H5_iter_order_t order, H5O_iterate_t op, void *op_data, unsigned fields, hid_t lapl_id)
 {
     herr_t      ret_value;              /* Return value */
 
     FUNC_ENTER_API(FAIL)
-    H5TRACE7("e", "i*sIiIox*xi", loc_id, obj_name, idx_type, order, op, op_data,
-             lapl_id);
+    H5TRACE8("e", "i*sIiIox*xIui", loc_id, obj_name, idx_type, order, op, op_data,
+             fields, lapl_id);
 
     /* Check args */
     if(!obj_name || !*obj_name)
@@ -845,18 +866,20 @@ H5Ovisit_by_name(hid_t loc_id, const char *obj_name, H5_index_t idx_type,
         HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid iteration order specified")
     if(!op)
         HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no callback operator specified")
+    if(fields & ~H5O_INFO_ALL)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid fields")
 
     /* Verify access property list and set up collective metadata if appropriate */
     if(H5CX_set_apl(&lapl_id, H5P_CLS_LACC, loc_id, FALSE) < 0)
         HGOTO_ERROR(H5E_OHDR, H5E_CANTSET, FAIL, "can't set access property list info")
 
     /* Call internal object visitation routine */
-    if((ret_value = H5O__visit(loc_id, obj_name, idx_type, order, op, op_data)) < 0)
+    if((ret_value = H5O__visit(loc_id, obj_name, idx_type, order, op, op_data, fields)) < 0)
         HGOTO_ERROR(H5E_OHDR, H5E_BADITER, FAIL, "object visitation failed")
 
 done:
     FUNC_LEAVE_API(ret_value)
-} /* end H5Ovisit_by_name() */
+} /* end H5Ovisit_by_name2() */
 
 
 /*-------------------------------------------------------------------------
diff --git a/src/H5Odeprec.c b/src/H5Odeprec.c
new file mode 100644
index 0000000..876579d
--- /dev/null
+++ b/src/H5Odeprec.c
@@ -0,0 +1,332 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * Copyright by the Board of Trustees of the University of Illinois.         *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the COPYING file, which can be found at the root of the source code       *
+ * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.  *
+ * If you do not have access to either file, you may request a copy from     *
+ * help@hdfgroup.org.                                                        *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*-------------------------------------------------------------------------
+ *
+ * Purpose:	Deprecated functions from the H5O interface.  These
+ *              functions are here for compatibility purposes and may be
+ *              removed in the future.  Applications should switch to the
+ *              newer APIs.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+/****************/
+/* Module Setup */
+/****************/
+
+#include "H5Omodule.h"          /* This source code file is part of the H5O module */
+
+
+/***********/
+/* Headers */
+/***********/
+#include "H5private.h"      /* Generic Functions    */
+#include "H5Eprivate.h"     /* Error handling       */
+#include "H5Opkg.h"         /* Object headers       */
+
+
+/****************/
+/* Local Macros */
+/****************/
+
+
+/******************/
+/* Local Typedefs */
+/******************/
+
+
+/********************/
+/* Package Typedefs */
+/********************/
+
+
+/********************/
+/* Local Prototypes */
+/********************/
+
+
+/*********************/
+/* Package Variables */
+/*********************/
+
+
+/*****************************/
+/* Library Private Variables */
+/*****************************/
+
+
+/*******************/
+/* Local Variables */
+/*******************/
+
+
+#ifndef H5_NO_DEPRECATED_SYMBOLS
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5Oget_info1
+ *
+ * Purpose:     Retrieve information about an object.
+ *
+ * Return:      Success:    Non-negative
+ *              Failure:    Negative
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5Oget_info1(hid_t loc_id, H5O_info_t *oinfo)
+{
+    H5G_loc_t   loc;                    /* Location of group */
+    herr_t      ret_value = SUCCEED;    /* Return value */
+
+    FUNC_ENTER_API(FAIL)
+    H5TRACE2("e", "i*x", loc_id, oinfo);
+
+    /* Check args */
+    if(H5G_loc(loc_id, &loc) < 0)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location")
+    if(!oinfo)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no info struct")
+
+    /* Retrieve the object's information */
+    if(H5O__get_info_by_name(&loc, ".", oinfo/*out*/, H5O_INFO_ALL) < 0)
+        HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't get info for object")
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5Oget_info1() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5Oget_info_by_name1
+ *
+ * Purpose:     Retrieve information about an object.
+ *
+ * Return:      Success:    Non-negative
+ *              Failure:    Negative
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5Oget_info_by_name1(hid_t loc_id, const char *name, H5O_info_t *oinfo, hid_t lapl_id)
+{
+    H5G_loc_t   loc;                    /* Location of group */
+    herr_t      ret_value = SUCCEED;    /* Return value */
+
+    FUNC_ENTER_API(FAIL)
+    H5TRACE4("e", "i*s*xi", loc_id, name, oinfo, lapl_id);
+
+    /* Check args */
+    if(H5G_loc(loc_id, &loc) < 0)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location")
+    if(!name || !*name)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no name")
+    if(!oinfo)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no info struct")
+
+     /* Verify access property list and set up collective metadata if appropriate */
+    if(H5CX_set_apl(&lapl_id, H5P_CLS_LACC, loc_id, FALSE) < 0)
+        HGOTO_ERROR(H5E_OHDR, H5E_CANTSET, FAIL, "can't set access property list info")
+
+    /* Retrieve the object's information */
+    if(H5O__get_info_by_name(&loc, name, oinfo/*out*/, H5O_INFO_ALL) < 0)
+        HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't get info for object: '%s'", name)
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5Oget_info_by_name1() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5Oget_info_by_idx1
+ *
+ * Purpose:     Retrieve information about an object, according to the order
+ *              of an index.
+ *
+ * Return:      Success:    Non-negative
+ *              Failure:    Negative
+ *
+ * Programmer:  Quincey Koziol
+ *              November 26 2006
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5Oget_info_by_idx1(hid_t loc_id, const char *group_name, H5_index_t idx_type,
+    H5_iter_order_t order, hsize_t n, H5O_info_t *oinfo, hid_t lapl_id)
+{
+    H5G_loc_t   loc;                    /* Location of group */
+    H5G_loc_t   obj_loc;                /* Location used to open group */
+    H5G_name_t  obj_path;               /* Opened object group hier. path */
+    H5O_loc_t   obj_oloc;               /* Opened object object location */
+    hbool_t     loc_found = FALSE;      /* Entry at 'name' found */
+    herr_t      ret_value = SUCCEED;    /* Return value */
+
+    FUNC_ENTER_API(FAIL)
+    H5TRACE7("e", "i*sIiIoh*xi", loc_id, group_name, idx_type, order, n, oinfo,
+             lapl_id);
+
+    /* Check args */
+    if(H5G_loc(loc_id, &loc) < 0)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location")
+    if(!group_name || !*group_name)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no name specified")
+    if(idx_type <= H5_INDEX_UNKNOWN || idx_type >= H5_INDEX_N)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid index type specified")
+    if(order <= H5_ITER_UNKNOWN || order >= H5_ITER_N)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid iteration order specified")
+    if(!oinfo)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no info struct")
+
+    /* Verify access property list and set up collective metadata if appropriate */
+    if(H5CX_set_apl(&lapl_id, H5P_CLS_LACC, loc_id, FALSE) < 0)
+        HGOTO_ERROR(H5E_OHDR, H5E_CANTSET, FAIL, "can't set access property list info")
+
+    /* Retrieve the object's information */
+    if(H5O__get_info_by_idx(&loc, group_name, idx_type, order, n, oinfo, H5O_INFO_ALL) < 0)
+        HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't get info for object")
+
+done:
+    /* Release the object location */
+    if(loc_found && H5G_loc_free(&obj_loc) < 0)
+        HDONE_ERROR(H5E_OHDR, H5E_CANTRELEASE, FAIL, "can't free location")
+
+    FUNC_LEAVE_API(ret_value)
+} /* end H5Oget_info_by_idx1() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5Ovisit1
+ *
+ * Purpose:     Recursively visit an object and all the objects reachable
+ *              from it.  If the starting object is a group, all the objects
+ *              linked to from that group will be visited.  Links within
+ *              each group are visited according to the order within the
+ *              specified index (unless the specified index does not exist for
+ *              a particular group, then the "name" index is used).
+ *
+ *              NOTE: Soft links and user-defined links are ignored during
+ *              this operation.
+ *
+ *              NOTE: Each _object_ reachable from the initial group will only
+ *              be visited once.  If multiple hard links point to the same
+ *              object, the first link to the object's path (according to the
+ *              iteration index and iteration order given) will be used to in
+ *              the callback about the object.
+ *
+ * Return:      Success:    The return value of the first operator that
+ *				returns non-zero, or zero if all members were
+ *				processed with no operator returning non-zero.
+ *
+ *              Failure:    Negative if something goes wrong within the
+ *				library, or the negative value returned by one
+ *				of the operators.
+ *
+ * Programmer:	Quincey Koziol
+ *              November 25 2007
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5Ovisit1(hid_t obj_id, H5_index_t idx_type, H5_iter_order_t order,
+    H5O_iterate_t op, void *op_data)
+{
+    herr_t      ret_value;              /* Return value */
+
+    FUNC_ENTER_API(FAIL)
+    H5TRACE5("e", "iIiIox*x", obj_id, idx_type, order, op, op_data);
+
+    /* Check args */
+    if(idx_type <= H5_INDEX_UNKNOWN || idx_type >= H5_INDEX_N)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid index type specified")
+    if(order <= H5_ITER_UNKNOWN || order >= H5_ITER_N)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid iteration order specified")
+    if(!op)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no callback operator specified")
+
+    /* Call internal object visitation routine */
+    if((ret_value = H5O__visit(obj_id, ".", idx_type, order, op, op_data, H5O_INFO_ALL)) < 0)
+        HGOTO_ERROR(H5E_OHDR, H5E_BADITER, FAIL, "object visitation failed")
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5Ovisit1() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5Ovisit_by_name1
+ *
+ * Purpose:     Recursively visit an object and all the objects reachable
+ *              from it.  If the starting object is a group, all the objects
+ *              linked to from that group will be visited.  Links within
+ *              each group are visited according to the order within the
+ *              specified index (unless the specified index does not exist for
+ *              a particular group, then the "name" index is used).
+ *
+ *              NOTE: Soft links and user-defined links are ignored during
+ *              this operation.
+ *
+ *              NOTE: Each _object_ reachable from the initial group will only
+ *              be visited once.  If multiple hard links point to the same
+ *              object, the first link to the object's path (according to the
+ *              iteration index and iteration order given) will be used to in
+ *              the callback about the object.
+ *
+ * Return:      Success:    The return value of the first operator that
+ *				returns non-zero, or zero if all members were
+ *				processed with no operator returning non-zero.
+ *
+ *              Failure:    Negative if something goes wrong within the
+ *				library, or the negative value returned by one
+ *				of the operators.
+ *
+ * Programmer:	Quincey Koziol
+ *              November 24 2007
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5Ovisit_by_name1(hid_t loc_id, const char *obj_name, H5_index_t idx_type,
+    H5_iter_order_t order, H5O_iterate_t op, void *op_data, hid_t lapl_id)
+{
+    herr_t      ret_value;              /* Return value */
+
+    FUNC_ENTER_API(FAIL)
+    H5TRACE7("e", "i*sIiIox*xi", loc_id, obj_name, idx_type, order, op, op_data,
+             lapl_id);
+
+    /* Check args */
+    if(!obj_name || !*obj_name)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no name")
+    if(idx_type <= H5_INDEX_UNKNOWN || idx_type >= H5_INDEX_N)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid index type specified")
+    if(order <= H5_ITER_UNKNOWN || order >= H5_ITER_N)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid iteration order specified")
+    if(!op)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no callback operator specified")
+
+    /* Verify access property list and set up collective metadata if appropriate */
+    if(H5CX_set_apl(&lapl_id, H5P_CLS_LACC, loc_id, FALSE) < 0)
+        HGOTO_ERROR(H5E_OHDR, H5E_CANTSET, FAIL, "can't set access property list info")
+
+    /* Call internal object visitation routine */
+    if((ret_value = H5O__visit(loc_id, obj_name, idx_type, order, op, op_data, H5O_INFO_ALL)) < 0)
+        HGOTO_ERROR(H5E_OHDR, H5E_BADITER, FAIL, "object visitation failed")
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5Ovisit_by_name1() */
+
+#endif /* H5_NO_DEPRECATED_SYMBOLS */
+
diff --git a/src/H5Oint.c b/src/H5Oint.c
index c9e82c0..2752a25 100644
--- a/src/H5Oint.c
+++ b/src/H5Oint.c
@@ -61,6 +61,7 @@ typedef struct {
     H5SL_t     *visited;        /* Skip list for tracking visited nodes */
     H5O_iterate_t op;           /* Application callback */
     void       *op_data;        /* Application's op data */
+    unsigned    fields;         /* Selection of object info */
 } H5O_iter_visit_ud_t;
 
 
@@ -2211,20 +2212,22 @@ H5O__get_hdr_info_real(const H5O_t *oh, H5O_hdr_info_t *hdr)
 
 
 /*-------------------------------------------------------------------------
- * Function:	H5O_get_info
+ * Function:    H5O_get_info
  *
- * Purpose:	Retrieve the information for an object
+ * Purpose:     Retrieve the information for an object
  *
- * Return:	Success:	Non-negative
- *		Failure:	Negative
+ * Note:        Add a parameter "fields" to indicate selection of object info.
+ *  
+ * Return:      Success:	Non-negative
+ *              Failure:	Negative
  *
- * Programmer:	Quincey Koziol
- *		November 21 2006
+ * Programmer:  Quincey Koziol
+ *              November 21 2006
  *
  *-------------------------------------------------------------------------
  */
 herr_t
-H5O_get_info(const H5O_loc_t *loc, hbool_t want_ih_info, H5O_info_t *oinfo)
+H5O_get_info(const H5O_loc_t *loc, H5O_info_t *oinfo, unsigned fields)
 {
     const H5O_obj_class_t *obj_class;   /* Class of object for header */
     H5O_t *oh = NULL;                   /* Object header */
@@ -2240,76 +2243,83 @@ H5O_get_info(const H5O_loc_t *loc, hbool_t want_ih_info, H5O_info_t *oinfo)
     if(NULL == (oh = H5O_protect(loc, H5AC__READ_ONLY_FLAG, FALSE)))
         HGOTO_ERROR(H5E_OHDR, H5E_CANTPROTECT, FAIL, "unable to load object header")
 
-    /* Reset the object info structure */
-    HDmemset(oinfo, 0, sizeof(*oinfo));
-
-    /* Retrieve the file's fileno */
-    H5F_GET_FILENO(loc->file, oinfo->fileno);
-
-    /* Set the object's address */
-    oinfo->addr = loc->addr;
-
     /* Get class for object */
     if(NULL == (obj_class = H5O__obj_class_real(oh)))
         HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "unable to determine object class")
 
-    /* Retrieve the type of the object */
-    oinfo->type = obj_class->type;
+    /* Reset the object info structure */
+    HDmemset(oinfo, 0, sizeof(*oinfo));
 
-    /* Set the object's reference count */
-    oinfo->rc = oh->nlink;
+    /* Get basic information, if requested */
+    if(fields & H5O_INFO_BASIC) {
+        /* Retrieve the file's fileno */
+        H5F_GET_FILENO(loc->file, oinfo->fileno);
 
-    /* Get modification time for object */
-    if(oh->version > H5O_VERSION_1) {
-        oinfo->atime = oh->atime;
-        oinfo->mtime = oh->mtime;
-        oinfo->ctime = oh->ctime;
-        oinfo->btime = oh->btime;
-    } /* end if */
-    else {
-        htri_t	exists;                 /* Flag if header message of interest exists */
+        /* Set the object's address */
+        oinfo->addr = loc->addr;
 
-        /* No information for access & modification fields */
-        /* (we stopped updating the "modification time" header message for
-         *      raw data changes, so the "modification time" header message
-         *      is closest to the 'change time', in POSIX terms - QAK)
-         */
-        oinfo->atime = 0;
-        oinfo->mtime = 0;
-        oinfo->btime = 0;
-
-        /* Might be information for modification time */
-        if((exists = H5O_msg_exists_oh(oh, H5O_MTIME_ID)) < 0)
-            HGOTO_ERROR(H5E_OHDR, H5E_NOTFOUND, FAIL, "unable to check for MTIME message")
-        if(exists > 0) {
-            /* Get "old style" modification time info */
-            if(NULL == H5O_msg_read_oh(loc->file, oh, H5O_MTIME_ID, &oinfo->ctime))
-                HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't read MTIME message")
+        /* Retrieve the type of the object */
+        oinfo->type = obj_class->type;
+
+        /* Set the object's reference count */
+        oinfo->rc = oh->nlink;
+    } 
+
+    /* Get time information, if requested */
+    if(fields & H5O_INFO_TIME) {
+        if(oh->version > H5O_VERSION_1) {
+            oinfo->atime = oh->atime;
+            oinfo->mtime = oh->mtime;
+            oinfo->ctime = oh->ctime;
+            oinfo->btime = oh->btime;
         } /* end if */
         else {
-            /* Check for "new style" modification time info */
-            if((exists = H5O_msg_exists_oh(oh, H5O_MTIME_NEW_ID)) < 0)
-                HGOTO_ERROR(H5E_OHDR, H5E_NOTFOUND, FAIL, "unable to check for MTIME_NEW message")
-            if(exists > 0) {
-                /* Get "new style" modification time info */
-                if(NULL == H5O_msg_read_oh(loc->file, oh, H5O_MTIME_NEW_ID, &oinfo->ctime))
-                    HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't read MTIME_NEW message")
+            htri_t exists;                 /* Flag if header message of interest exists */
+
+            /* No information for access & modification fields */
+            /* (we stopped updating the "modification time" header message for
+             *      raw data changes, so the "modification time" header message
+             *      is closest to the 'change time', in POSIX terms - QAK)
+             */
+            oinfo->atime = 0;
+            oinfo->mtime = 0;
+            oinfo->btime = 0;
+
+            /* Might be information for modification time */
+            if((exists = H5O_msg_exists_oh(oh, H5O_MTIME_ID)) < 0)
+                HGOTO_ERROR(H5E_OHDR, H5E_NOTFOUND, FAIL, "unable to check for MTIME message")
+           if(exists > 0) {
+                /* Get "old style" modification time info */
+                if(NULL == H5O_msg_read_oh(loc->file, oh, H5O_MTIME_ID, &oinfo->ctime))
+                    HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't read MTIME message")
             } /* end if */
-            else
-                oinfo->ctime = 0;
-        } /* end else */
-    } /* end else */
+            else {
+                /* Check for "new style" modification time info */
+                if((exists = H5O_msg_exists_oh(oh, H5O_MTIME_NEW_ID)) < 0)
+                    HGOTO_ERROR(H5E_OHDR, H5E_NOTFOUND, FAIL, "unable to check for MTIME_NEW message")
+                if(exists > 0) {
+                    /* Get "new style" modification time info */
+                    if(NULL == H5O_msg_read_oh(loc->file, oh, H5O_MTIME_NEW_ID, &oinfo->ctime))
+                        HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't read MTIME_NEW message")
+                } /* end if */
+                else
+                    oinfo->ctime = 0;
+            } /* end else */
+         } /* end else */
+    } /* end if */
 
-    /* Get the information for the object header */
-    if(H5O__get_hdr_info_real(oh, &oinfo->hdr) < 0)
-        HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't retrieve object header info")
+    /* Get the information for the object header, if requested */
+    if(fields & H5O_INFO_HDR)
+        if(H5O__get_hdr_info_real(oh, &oinfo->hdr) < 0)
+            HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't retrieve object header info")
 
     /* Retrieve # of attributes */
-    if(H5O_attr_count_real(loc->file, oh, &oinfo->num_attrs) < 0)
-        HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't retrieve attribute count")
+    if(fields & H5O_INFO_NUM_ATTRS)
+        if(H5O_attr_count_real(loc->file, oh, &oinfo->num_attrs) < 0)
+            HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't retrieve attribute count")
 
     /* Get B-tree & heap metadata storage size, if requested */
-    if(want_ih_info) {
+    if(fields & H5O_INFO_META_SIZE) {
         /* Check for 'bh_info' callback for this type of object */
         if(obj_class->bh_info)
             /* Call the object's class 'bh_info' routine */
@@ -2317,9 +2327,10 @@ H5O_get_info(const H5O_loc_t *loc, hbool_t want_ih_info, H5O_info_t *oinfo)
                 HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't retrieve object's btree & heap info")
 
         /* Get B-tree & heap info for any attributes */
-        if(oinfo->num_attrs > 0)
+        if(!(fields & H5O_INFO_NUM_ATTRS) || oinfo->num_attrs > 0) {
             if(H5O__attr_bh_info(loc->file, oh, &oinfo->meta_size.attr) < 0)
                 HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't retrieve attribute btree & heap info")
+        } /* end if */
     } /* end if */
 
 done:
@@ -2338,16 +2349,18 @@ done:
  * Note:        This routine is needed so that there's a non-API routine
  *              that can set up VOL / SWMR info (which need a DXPL).
  *
- * Return:	Success:	Non-negative
- *		Failure:	Negative
+ * Note:        Add a parameter "fields" to indicate selection of object info.
+ *
+ * Return:      Success:	Non-negative
+ *              Failure:	Negative
  *
  * Programmer:	Quincey Koziol
- *		December 28, 2017
+ *              December 28, 2017
  *
  *-------------------------------------------------------------------------
  */
 herr_t
-H5O__get_info_by_name(const H5G_loc_t *loc, const char *name, H5O_info_t *oinfo)
+H5O__get_info_by_name(const H5G_loc_t *loc, const char *name, H5O_info_t *oinfo, unsigned fields)
 {
     herr_t ret_value = SUCCEED;		/* Return value */
 
@@ -2359,7 +2372,7 @@ H5O__get_info_by_name(const H5G_loc_t *loc, const char *name, H5O_info_t *oinfo)
     HDassert(oinfo);
 
     /* Retrieve the object's information */
-    if(H5G_loc_info(loc, name, TRUE, oinfo/*out*/) < 0)
+    if(H5G_loc_info(loc, name, oinfo/*out*/, fields) < 0)
         HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't retrieve object info")
 
 done:
@@ -2376,17 +2389,19 @@ done:
  * Note:        This routine is needed so that there's a non-API routine
  *              that can set up VOL / SWMR info (which need a DXPL).
  *
- * Return:	Success:	Non-negative
- *		Failure:	Negative
+ * Note:        Add a parameter "fields" to indicate selection of object info.
  *
- * Programmer:	Quincey Koziol
- *		December 28, 2017
+ * Return:      Success:	Non-negative
+ *              Failure:	Negative
+ *
+ * Programmer:  Quincey Koziol
+ *              December 28, 2017
  *
  *-------------------------------------------------------------------------
  */
 herr_t
 H5O__get_info_by_idx(const H5G_loc_t *loc, const char *group_name, H5_index_t idx_type,
-    H5_iter_order_t order, hsize_t n, H5O_info_t *oinfo)
+    H5_iter_order_t order, hsize_t n, H5O_info_t *oinfo, unsigned fields)
 {
     H5G_loc_t   obj_loc;                /* Location used to open group */
     H5G_name_t  obj_path;            	/* Opened object group hier. path */
@@ -2412,7 +2427,7 @@ H5O__get_info_by_idx(const H5G_loc_t *loc, const char *group_name, H5_index_t id
     loc_found = TRUE;
 
     /* Retrieve the object's information */
-    if(H5O_get_info(obj_loc.oloc, TRUE, oinfo) < 0)
+    if(H5O_get_info(obj_loc.oloc, oinfo, fields) < 0)
         HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "can't retrieve object info")
 
 done:
@@ -2793,7 +2808,7 @@ H5O__visit_cb(hid_t H5_ATTR_UNUSED group, const char *name, const H5L_info_t *li
             H5O_info_t oinfo;           /* Object info */
 
             /* Get the object's info */
-            if(H5O_get_info(&obj_oloc, TRUE, &oinfo) < 0)
+            if(H5O_get_info(&obj_oloc, &oinfo, udata->fields) < 0)
                 HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, H5_ITER_ERROR, "unable to get object info")
 
             /* Make the application callback */
@@ -2833,7 +2848,7 @@ done:
 /*-------------------------------------------------------------------------
  * Function:	H5O__visit
  *
- * Purpose:	Recursively visit an object and all the objects reachable
+ * Purpose:     Recursively visit an object and all the objects reachable
  *              from it.  If the starting object is a group, all the objects
  *              linked to from that group will be visited.  Links within
  *              each group are visited according to the order within the
@@ -2849,22 +2864,24 @@ done:
  *              iteration index and iteration order given) will be used to in
  *              the callback about the object.
  *
- * Return:	Success:	The return value of the first operator that
+ * Note:        Add a parameter "fields" to indicate selection of object info.
+ *
+ * Return:      Success:    The return value of the first operator that
  *				returns non-zero, or zero if all members were
  *				processed with no operator returning non-zero.
  *
- *		Failure:	Negative if something goes wrong within the
+ *              Failure:    Negative if something goes wrong within the
  *				library, or the negative value returned by one
  *				of the operators.
  *
  * Programmer:	Quincey Koziol
- *		November 24 2007
+ *              November 24 2007
  *
  *-------------------------------------------------------------------------
  */
 herr_t
 H5O__visit(hid_t loc_id, const char *obj_name, H5_index_t idx_type,
-    H5_iter_order_t order, H5O_iterate_t op, void *op_data)
+    H5_iter_order_t order, H5O_iterate_t op, void *op_data, unsigned fields)
 {
     H5O_iter_visit_ud_t udata;  /* User data for callback */
     H5G_loc_t	loc;            /* Location of reference object */
@@ -2896,7 +2913,7 @@ H5O__visit(hid_t loc_id, const char *obj_name, H5_index_t idx_type,
     loc_found = TRUE;
 
     /* Get the object's info */
-    if(H5O_get_info(&obj_oloc, TRUE, &oinfo) < 0)
+    if(H5O_get_info(&obj_oloc, &oinfo, fields) < 0)
         HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "unable to get object info")
 
     /* Open the object */
@@ -2925,6 +2942,7 @@ H5O__visit(hid_t loc_id, const char *obj_name, H5_index_t idx_type,
         udata.start_loc = &start_loc;
         udata.op = op;
         udata.op_data = op_data;
+        udata.fields = fields;
 
         /* Create skip list to store visited object information */
         if((udata.visited = H5SL_create(H5SL_TYPE_OBJ, NULL)) == NULL)
diff --git a/src/H5Opkg.h b/src/H5Opkg.h
index f535e50..616f96b 100644
--- a/src/H5Opkg.h
+++ b/src/H5Opkg.h
@@ -567,15 +567,15 @@ H5_DLL int H5O__link_oh(H5F_t *f, int adjust, H5O_t *oh, hbool_t *deleted);
 H5_DLL herr_t H5O__link(const H5O_loc_t *loc, int adjust);
 H5_DLL htri_t H5O__exists_by_name(const H5G_loc_t *loc, const char *name);
 H5_DLL herr_t H5O__get_info_by_name(const H5G_loc_t *loc, const char *name,
-    H5O_info_t *oinfo);
+    H5O_info_t *oinfo, unsigned fields);
 H5_DLL herr_t H5O__get_info_by_idx(const H5G_loc_t *loc, const char *group_name,
-    H5_index_t idx_type, H5_iter_order_t order, hsize_t n, H5O_info_t *oinfo);
+    H5_index_t idx_type, H5_iter_order_t order, hsize_t n, H5O_info_t *oinfo, unsigned fields);
 H5_DLL herr_t H5O__set_comment_by_name(const H5G_loc_t *loc, const char *name,
     const char *comment);
 H5_DLL ssize_t H5O__get_comment_by_name(const H5G_loc_t *loc, const char *name,
     char *comment, size_t bufsize);
 H5_DLL herr_t H5O__visit(hid_t loc_id, const char *obj_name, H5_index_t idx_type,
-    H5_iter_order_t order, H5O_iterate_t op, void *op_data);
+    H5_iter_order_t order, H5O_iterate_t op, void *op_data, unsigned fields);
 H5_DLL herr_t H5O__inc_rc(H5O_t *oh);
 H5_DLL herr_t H5O__dec_rc(H5O_t *oh);
 H5_DLL herr_t H5O__free(H5O_t *oh);
diff --git a/src/H5Oprivate.h b/src/H5Oprivate.h
index 696fd38..10063d5 100644
--- a/src/H5Oprivate.h
+++ b/src/H5Oprivate.h
@@ -881,8 +881,7 @@ H5_DLL herr_t H5O_bogus_oh(H5F_t *f, H5O_t *oh, unsigned mesg_id, unsigned mesg_
 #endif /* H5O_ENABLE_BOGUS */
 H5_DLL herr_t H5O_delete(H5F_t *f, haddr_t addr);
 H5_DLL herr_t H5O_get_hdr_info(const H5O_loc_t *oloc, H5O_hdr_info_t *hdr);
-H5_DLL herr_t H5O_get_info(const H5O_loc_t *oloc, hbool_t want_ih_info,
-    H5O_info_t *oinfo);
+H5_DLL herr_t H5O_get_info(const H5O_loc_t *oloc, H5O_info_t *oinfo, unsigned fields);
 H5_DLL herr_t H5O_obj_type(const H5O_loc_t *loc, H5O_type_t *obj_type);
 H5_DLL herr_t H5O_get_create_plist(const H5O_loc_t *loc, struct H5P_genplist_t *oc_plist);
 H5_DLL hid_t H5O_open_name(const H5G_loc_t *loc, const char *name, hbool_t app_ref);
diff --git a/src/H5Opublic.h b/src/H5Opublic.h
index 8d6dda4..da2910d 100644
--- a/src/H5Opublic.h
+++ b/src/H5Opublic.h
@@ -73,6 +73,17 @@
 #define H5O_SHMESG_MAX_NINDEXES 8
 #define H5O_SHMESG_MAX_LIST_SIZE 5000
 
+/* Flags for H5Oget_info.
+ * Theses flags determine which fields will be filled in in the H5O_info_t
+ * struct.  
+ */
+#define H5O_INFO_BASIC          0x0001u         /* Fill in the fileno, addr, type, and rc fields */
+#define H5O_INFO_TIME           0x0002u         /* Fill in the atime, mtime, ctime, and btime fields */
+#define H5O_INFO_NUM_ATTRS      0x0004u         /* Fill in the num_attrs field */
+#define H5O_INFO_HDR            0x0008u         /* Fill in the hdr field */
+#define H5O_INFO_META_SIZE      0x0010u         /* Fill in the meta_size field */
+#define H5O_INFO_ALL            (H5O_INFO_BASIC | H5O_INFO_TIME | H5O_INFO_NUM_ATTRS | H5O_INFO_HDR | H5O_INFO_META_SIZE)
+
 /*******************/
 /* Public Typedefs */
 /*******************/
@@ -156,12 +167,12 @@ H5_DLL hid_t H5Oopen_by_addr(hid_t loc_id, haddr_t addr);
 H5_DLL hid_t H5Oopen_by_idx(hid_t loc_id, const char *group_name,
     H5_index_t idx_type, H5_iter_order_t order, hsize_t n, hid_t lapl_id);
 H5_DLL htri_t H5Oexists_by_name(hid_t loc_id, const char *name, hid_t lapl_id);
-H5_DLL herr_t H5Oget_info(hid_t loc_id, H5O_info_t *oinfo);
-H5_DLL herr_t H5Oget_info_by_name(hid_t loc_id, const char *name, H5O_info_t *oinfo,
-    hid_t lapl_id);
-H5_DLL herr_t H5Oget_info_by_idx(hid_t loc_id, const char *group_name,
+H5_DLL herr_t H5Oget_info2(hid_t loc_id, H5O_info_t *oinfo, unsigned fields);
+H5_DLL herr_t H5Oget_info_by_name2(hid_t loc_id, const char *name, H5O_info_t *oinfo,
+    unsigned fields, hid_t lapl_id);
+H5_DLL herr_t H5Oget_info_by_idx2(hid_t loc_id, const char *group_name,
     H5_index_t idx_type, H5_iter_order_t order, hsize_t n, H5O_info_t *oinfo,
-    hid_t lapl_id);
+    unsigned fields, hid_t lapl_id);
 H5_DLL herr_t H5Olink(hid_t obj_id, hid_t new_loc_id, const char *new_name,
     hid_t lcpl_id, hid_t lapl_id);
 H5_DLL herr_t H5Oincr_refcount(hid_t object_id);
@@ -174,11 +185,11 @@ H5_DLL herr_t H5Oset_comment_by_name(hid_t loc_id, const char *name,
 H5_DLL ssize_t H5Oget_comment(hid_t obj_id, char *comment, size_t bufsize);
 H5_DLL ssize_t H5Oget_comment_by_name(hid_t loc_id, const char *name,
     char *comment, size_t bufsize, hid_t lapl_id);
-H5_DLL herr_t H5Ovisit(hid_t obj_id, H5_index_t idx_type, H5_iter_order_t order,
-    H5O_iterate_t op, void *op_data);
-H5_DLL herr_t H5Ovisit_by_name(hid_t loc_id, const char *obj_name,
+H5_DLL herr_t H5Ovisit2(hid_t obj_id, H5_index_t idx_type, H5_iter_order_t order,
+    H5O_iterate_t op, void *op_data, unsigned fields);
+H5_DLL herr_t H5Ovisit_by_name2(hid_t loc_id, const char *obj_name,
     H5_index_t idx_type, H5_iter_order_t order, H5O_iterate_t op,
-    void *op_data, hid_t lapl_id);
+    void *op_data, unsigned fields, hid_t lapl_id);
 H5_DLL herr_t H5Oclose(hid_t object_id);
 H5_DLL herr_t H5Oflush(hid_t obj_id);
 H5_DLL herr_t H5Orefresh(hid_t oid);
@@ -205,7 +216,18 @@ typedef struct H5O_stat_t {
 } H5O_stat_t;
 
 /* Function prototypes */
+H5_DLL herr_t H5Oget_info1(hid_t loc_id, H5O_info_t *oinfo);
+H5_DLL herr_t H5Oget_info_by_name1(hid_t loc_id, const char *name, H5O_info_t *oinfo,
+    hid_t lapl_id);
+H5_DLL herr_t H5Oget_info_by_idx1(hid_t loc_id, const char *group_name,
+    H5_index_t idx_type, H5_iter_order_t order, hsize_t n, H5O_info_t *oinfo,
+    hid_t lapl_id);
 
+H5_DLL herr_t H5Ovisit1(hid_t obj_id, H5_index_t idx_type, H5_iter_order_t order,
+    H5O_iterate_t op, void *op_data);
+H5_DLL herr_t H5Ovisit_by_name1(hid_t loc_id, const char *obj_name,
+    H5_index_t idx_type, H5_iter_order_t order, H5O_iterate_t op,
+    void *op_data, hid_t lapl_id);
 #endif /* H5_NO_DEPRECATED_SYMBOLS */
 
 #ifdef __cplusplus
diff --git a/src/H5PB.c b/src/H5PB.c
index dab69f4..a325ad1 100644
--- a/src/H5PB.c
+++ b/src/H5PB.c
@@ -254,23 +254,23 @@ H5PB_print_stats(const H5PB_t *page_buf)
 
     printf("PAGE BUFFER STATISTICS:\n");
 
-    printf("******* METADATA\n");
-    printf("\t Total Accesses: %u\n", page_buf->accesses[0]);
-    printf("\t Hits: %u\n", page_buf->hits[0]);
-    printf("\t Misses: %u\n", page_buf->misses[0]);
-    printf("\t Evictions: %u\n", page_buf->evictions[0]);
-    printf("\t Bypasses: %u\n", page_buf->bypasses[0]);
-    printf("\t Hit Rate = %f%%\n", ((double)page_buf->hits[0]/(page_buf->accesses[0] - page_buf->bypasses[0]))*100);
-    printf("*****************\n\n");
-
-    printf("******* RAWDATA\n");
-    printf("\t Total Accesses: %u\n", page_buf->accesses[1]);
-    printf("\t Hits: %u\n", page_buf->hits[1]);
-    printf("\t Misses: %u\n", page_buf->misses[1]);
-    printf("\t Evictions: %u\n", page_buf->evictions[1]);
-    printf("\t Bypasses: %u\n", page_buf->bypasses[1]);
-    printf("\t Hit Rate = %f%%\n", ((double)page_buf->hits[1]/(page_buf->accesses[1]-page_buf->bypasses[0]))*100);
-    printf("*****************\n\n");
+    HDprintf("******* METADATA\n");
+    HDprintf("\t Total Accesses: %u\n", page_buf->accesses[0]);
+    HDprintf("\t Hits: %u\n", page_buf->hits[0]);
+    HDprintf("\t Misses: %u\n", page_buf->misses[0]);
+    HDprintf("\t Evictions: %u\n", page_buf->evictions[0]);
+    HDprintf("\t Bypasses: %u\n", page_buf->bypasses[0]);
+    HDprintf("\t Hit Rate = %f%%\n", ((double)page_buf->hits[0]/(page_buf->accesses[0] - page_buf->bypasses[0]))*100);
+    HDprintf("*****************\n\n");
+
+    HDprintf("******* RAWDATA\n");
+    HDprintf("\t Total Accesses: %u\n", page_buf->accesses[1]);
+    HDprintf("\t Hits: %u\n", page_buf->hits[1]);
+    HDprintf("\t Misses: %u\n", page_buf->misses[1]);
+    HDprintf("\t Evictions: %u\n", page_buf->evictions[1]);
+    HDprintf("\t Bypasses: %u\n", page_buf->bypasses[1]);
+    HDprintf("\t Hit Rate = %f%%\n", ((double)page_buf->hits[1]/(page_buf->accesses[1]-page_buf->bypasses[0]))*100);
+    HDprintf("*****************\n\n");
 
     FUNC_LEAVE_NOAPI(SUCCEED)
 } /* H5PB_print_stats */
diff --git a/src/H5Pdxpl.c b/src/H5Pdxpl.c
index a527510..0daed29 100644
--- a/src/H5Pdxpl.c
+++ b/src/H5Pdxpl.c
@@ -152,22 +152,6 @@
 #define H5D_XFER_XFORM_COPY         H5P__dxfr_xform_copy
 #define H5D_XFER_XFORM_CMP          H5P__dxfr_xform_cmp
 #define H5D_XFER_XFORM_CLOSE        H5P__dxfr_xform_close
-/* Definitions for properties of direct chunk write */
-#define H5D_XFER_DIRECT_CHUNK_WRITE_FLAG_SIZE		sizeof(hbool_t)
-#define H5D_XFER_DIRECT_CHUNK_WRITE_FLAG_DEF		FALSE
-#define H5D_XFER_DIRECT_CHUNK_WRITE_FILTERS_SIZE	sizeof(uint32_t)
-#define H5D_XFER_DIRECT_CHUNK_WRITE_FILTERS_DEF		0
-#define H5D_XFER_DIRECT_CHUNK_WRITE_OFFSET_SIZE		sizeof(hsize_t *)
-#define H5D_XFER_DIRECT_CHUNK_WRITE_OFFSET_DEF		NULL
-#define H5D_XFER_DIRECT_CHUNK_WRITE_DATASIZE_SIZE	sizeof(uint32_t)
-#define H5D_XFER_DIRECT_CHUNK_WRITE_DATASIZE_DEF	0
-/* Definitions for properties of direct chunk read */
-#define H5D_XFER_DIRECT_CHUNK_READ_FLAG_SIZE        sizeof(hbool_t)
-#define H5D_XFER_DIRECT_CHUNK_READ_FLAG_DEF         FALSE
-#define H5D_XFER_DIRECT_CHUNK_READ_FILTERS_SIZE     sizeof(uint32_t)
-#define H5D_XFER_DIRECT_CHUNK_READ_FILTERS_DEF      0
-#define H5D_XFER_DIRECT_CHUNK_READ_OFFSET_SIZE      sizeof(hsize_t *)
-#define H5D_XFER_DIRECT_CHUNK_READ_OFFSET_DEF       NULL
 
 
 /******************/
@@ -266,13 +250,6 @@ static const H5Z_EDC_t H5D_def_enable_edc_g = H5D_XFER_EDC_DEF;            /* De
 static const H5Z_cb_t H5D_def_filter_cb_g = H5D_XFER_FILTER_CB_DEF;        /* Default value for filter callback */
 static const H5T_conv_cb_t H5D_def_conv_cb_g = H5D_XFER_CONV_CB_DEF;       /* Default value for datatype conversion callback */
 static const void *H5D_def_xfer_xform_g = H5D_XFER_XFORM_DEF;          /* Default value for data transform */
-static const hbool_t H5D_def_direct_chunk_flag_g = H5D_XFER_DIRECT_CHUNK_WRITE_FLAG_DEF; 	/* Default value for the flag of direct chunk write */
-static const uint32_t H5D_def_direct_chunk_filters_g = H5D_XFER_DIRECT_CHUNK_WRITE_FILTERS_DEF;	/* Default value for the filters of direct chunk write */
-static const hsize_t *H5D_def_direct_chunk_offset_g = H5D_XFER_DIRECT_CHUNK_WRITE_OFFSET_DEF; 	/* Default value for the offset of direct chunk write */
-static const uint32_t H5D_def_direct_chunk_datasize_g = H5D_XFER_DIRECT_CHUNK_WRITE_DATASIZE_DEF; /* Default value for the datasize of direct chunk write */
-static const hbool_t direct_chunk_read_flag = H5D_XFER_DIRECT_CHUNK_READ_FLAG_DEF;         /* Default value for the flag of direct chunk read */
-static const hsize_t *direct_chunk_read_offset = H5D_XFER_DIRECT_CHUNK_READ_OFFSET_DEF;    /* Default value for the offset of direct chunk read */
-static const uint32_t direct_chunk_read_filters = H5D_XFER_DIRECT_CHUNK_READ_FILTERS_DEF;    /* Default value for the filters of direct chunk read */
 
 
 /*-------------------------------------------------------------------------
@@ -423,48 +400,6 @@ H5P__dxfr_reg_prop(H5P_genclass_t *pclass)
             H5D_XFER_XFORM_DEL, H5D_XFER_XFORM_COPY, H5D_XFER_XFORM_CMP, H5D_XFER_XFORM_CLOSE) < 0)
         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
 
-    /* Register the property of flag for direct chunk write */
-    /* (Note: this property should not have an encode/decode callback -QAK) */
-    if(H5P_register_real(pclass, H5D_XFER_DIRECT_CHUNK_WRITE_FLAG_NAME, H5D_XFER_DIRECT_CHUNK_WRITE_FLAG_SIZE, &H5D_def_direct_chunk_flag_g,
-            NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
-        HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
-
-    /* Register the property of filter for direct chunk write */
-    /* (Note: this property should not have an encode/decode callback -QAK) */
-    if(H5P_register_real(pclass, H5D_XFER_DIRECT_CHUNK_WRITE_FILTERS_NAME, H5D_XFER_DIRECT_CHUNK_WRITE_FILTERS_SIZE, &H5D_def_direct_chunk_filters_g,
-            NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
-        HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
-
-    /* Register the property of offset for direct chunk write */
-    /* (Note: this property should not have an encode/decode callback -QAK) */
-    if(H5P_register_real(pclass, H5D_XFER_DIRECT_CHUNK_WRITE_OFFSET_NAME, H5D_XFER_DIRECT_CHUNK_WRITE_OFFSET_SIZE, &H5D_def_direct_chunk_offset_g,
-            NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
-        HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
-
-    /* Register the property of datasize for direct chunk write */
-    /* (Note: this property should not have an encode/decode callback -QAK) */
-    if(H5P_register_real(pclass, H5D_XFER_DIRECT_CHUNK_WRITE_DATASIZE_NAME, H5D_XFER_DIRECT_CHUNK_WRITE_DATASIZE_SIZE, &H5D_def_direct_chunk_datasize_g,
-            NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
-        HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
-
-    /* Register the property of flag for direct chunk read */
-    /* (Note: this property should not have an encode/decode callback) */
-    if(H5P_register_real(pclass, H5D_XFER_DIRECT_CHUNK_READ_FLAG_NAME, H5D_XFER_DIRECT_CHUNK_READ_FLAG_SIZE, &direct_chunk_read_flag,
-            NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
-        HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
-
-    /* Register the property of filter for direct chunk read */
-    /* (Note: this property should not have an encode/decode callback) */
-    if(H5P_register_real(pclass, H5D_XFER_DIRECT_CHUNK_READ_FILTERS_NAME, H5D_XFER_DIRECT_CHUNK_READ_FILTERS_SIZE, &direct_chunk_read_filters,
-            NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
-        HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
-
-    /* Register the property of offset for direct chunk read */
-    /* (Note: this property should not have an encode/decode callback) */
-    if(H5P_register_real(pclass, H5D_XFER_DIRECT_CHUNK_READ_OFFSET_NAME, H5D_XFER_DIRECT_CHUNK_READ_OFFSET_SIZE, &direct_chunk_read_offset,
-            NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0)
-        HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
-
 done:
     FUNC_LEAVE_NOAPI(ret_value)
 } /* end H5P__dxfr_reg_prop() */
diff --git a/src/H5R.c b/src/H5R.c
index ab73b59..95abc32 100644
--- a/src/H5R.c
+++ b/src/H5R.c
@@ -141,7 +141,7 @@ done:
         void *ref;      IN: Reference to open.
 
  RETURNS
-    Valid ID on success, Negative on failure
+    Valid ID on success, H5I_INVALID_HID on failure
  DESCRIPTION
     Given a reference to some object, open that object and return an ID for
     that object.
@@ -203,7 +203,7 @@ done:
         void *ref;        IN: Reference to open.
 
  RETURNS
-    Valid ID on success, Negative on failure
+    Valid ID on success, H5I_INVALID_HID on failure
  DESCRIPTION
     Given a reference to some object, creates a copy of the dataset pointed
     to's dataspace and defines a selection in the copy which is the region
@@ -311,7 +311,7 @@ done:
                             when passing in the size)
 
  RETURNS
-    Non-negative length of the path on success, Negative on failure
+    Non-negative length of the path on success, -1 on failure
  DESCRIPTION
     Given a reference to some object, determine a path to the object
     referenced in the file.
@@ -335,23 +335,23 @@ H5Rget_name(hid_t id, H5R_type_t ref_type, const void *_ref, char *name,
     H5F_t *file;        /* File object */
     ssize_t ret_value;  /* Return value */
 
-    FUNC_ENTER_API(FAIL)
+    FUNC_ENTER_API((-1))
     H5TRACE5("Zs", "iRt*x*sz", id, ref_type, _ref, name, size);
 
     /* Check args */
     if (H5G_loc(id, &loc) < 0)
-        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location")
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, (-1), "not a location")
     if (ref_type <= H5R_BADTYPE || ref_type >= H5R_MAXTYPE)
-        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference type")
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, (-1), "invalid reference type")
     if (_ref == NULL)
-        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid reference pointer")
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, (-1), "invalid reference pointer")
 
     /* Get the file pointer from the entry */
     file = loc.oloc->file;
 
     /* Get name */
     if((ret_value = H5R__get_name(file, id, ref_type, _ref, name, size)) < 0)
-        HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "unable to determine object path")
+        HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, (-1), "unable to determine object path")
 
 done:
     FUNC_LEAVE_API(ret_value)
diff --git a/src/H5Rdeprec.c b/src/H5Rdeprec.c
index 2f41f7d..fb62430 100644
--- a/src/H5Rdeprec.c
+++ b/src/H5Rdeprec.c
@@ -141,7 +141,7 @@ done:
  *      ref         IN: Reference to open
  *
  * Return:      Success:	Valid HDF5 ID
- *              Failure:    Negative
+ *              Failure:    H5I_INVALID_HID
  *
  *-------------------------------------------------------------------------
  */
diff --git a/src/H5Rint.c b/src/H5Rint.c
index df9037728..e3b11c0 100644
--- a/src/H5Rint.c
+++ b/src/H5Rint.c
@@ -587,7 +587,7 @@ done:
         H5F_t *file;        IN: File the object being dereferenced is within
         H5R_type_t ref_type;    IN: Type of reference to query
         void *ref;          IN: Reference to query.
-	H5O_type_t *obj_type;	OUT: The type of the object, set on success
+        H5O_type_t *obj_type;	OUT: The type of the object, set on success
 
  RETURNS
     Non-negative on success/Negative on failure
@@ -678,12 +678,12 @@ done:
         hid_t lapl_id;  IN: LAPL to use for operation
         hid_t id;       IN: Location ID given for reference
         H5R_type_t ref_type;    IN: Type of reference
-        void *ref;      IN: Reference to query.
+        void *_ref;     IN: Reference to query.
         char *name;     OUT: Buffer to place name of object referenced
         size_t size;    IN: Size of name buffer
 
  RETURNS
-    Non-negative length of the path on success, Negative on failure
+    Non-negative length of the path on success, -1 on failure
  DESCRIPTION
     Given a reference to some object, determine a path to the object
     referenced in the file.
@@ -732,7 +732,7 @@ H5R__get_name(H5F_t *f, hid_t id, H5R_type_t ref_type, const void *_ref,
 
             /* Get the dataset region from the heap (allocate inside routine) */
             if ((buf = (uint8_t *)H5HG_read(oloc.file, &hobjid, NULL, NULL)) == NULL)
-                HGOTO_ERROR(H5E_REFERENCE, H5E_READERROR, FAIL, "Unable to read dataset region information")
+                HGOTO_ERROR(H5E_REFERENCE, H5E_READERROR, (-1), "Unable to read dataset region information")
 
             /* Get the object oid for the dataset */
             p = buf;
@@ -747,22 +747,21 @@ H5R__get_name(H5F_t *f, hid_t id, H5R_type_t ref_type, const void *_ref,
         case H5R_BADTYPE:
         case H5R_MAXTYPE:
         default:
-            HDassert("unknown reference type" && 0);
-            HGOTO_ERROR(H5E_REFERENCE, H5E_UNSUPPORTED, FAIL, "internal error (unknown reference type)")
+            HGOTO_ERROR(H5E_REFERENCE, H5E_UNSUPPORTED, (-1), "internal error (unknown reference type)")
     } /* end switch */
 
     /* Retrieve file ID for name search */
     if ((file_id = H5I_get_file_id(id, FALSE)) < 0)
-        HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't retrieve file ID")
+        HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, (-1), "can't retrieve file ID")
 
     /* Get name, length, etc. */
     if ((ret_value = H5G_get_name_by_addr(file_id, &oloc, name, size)) < 0)
-        HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't determine name")
+        HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, (-1), "can't determine name")
 
 done:
     /* Close file ID used for search */
     if (file_id > 0 && H5I_dec_ref(file_id) < 0)
-        HDONE_ERROR(H5E_REFERENCE, H5E_CANTDEC, FAIL, "can't decrement ref count of temp ID")
+        HDONE_ERROR(H5E_REFERENCE, H5E_CANTDEC, (-1), "can't decrement ref count of temp ID")
 
     FUNC_LEAVE_NOAPI_VOL(ret_value)
 } /* end H5R__get_name() */
diff --git a/src/H5Rpkg.h b/src/H5Rpkg.h
index 49261eb..fbbff50 100644
--- a/src/H5Rpkg.h
+++ b/src/H5Rpkg.h
@@ -26,6 +26,11 @@
 #include "H5Rprivate.h"
 
 /* Other private headers needed by this file */
+#include "H5Fprivate.h"         /* Files                                    */
+#include "H5Gprivate.h"         /* Groups                                   */
+#include "H5Oprivate.h"         /* Object headers                           */
+#include "H5Sprivate.h"         /* Dataspaces                               */
+
 
 /**************************/
 /* Package Private Macros */
diff --git a/src/H5S.c b/src/H5S.c
index b490b36..bd21caf 100644
--- a/src/H5S.c
+++ b/src/H5S.c
@@ -26,7 +26,6 @@
 #include "H5Fprivate.h"		/* Files				*/
 #include "H5FLprivate.h"	/* Free lists                           */
 #include "H5Iprivate.h"		/* IDs			  		*/
-#include "H5MMprivate.h"	/* Memory management			*/
 #include "H5Oprivate.h"		/* Object headers		  	*/
 #include "H5Spkg.h"		/* Dataspaces 				*/
 
@@ -208,6 +207,58 @@ H5S_term_package(void)
     FUNC_LEAVE_NOAPI(n)
 } /* end H5S_term_package() */
 
+
+
+/*--------------------------------------------------------------------------
+ NAME
+    H5S_get_validiated_dataspace
+ PURPOSE
+    Get a pointer to a validated H5S_t pointer
+ USAGE
+   H5S_t *H5S_get_validated_space(dataspace_id, space)
+    hid_t           space_id;       IN: The ID of the dataspace
+    const H5S_t *   space;          OUT: A pointer to the dataspace
+ RETURNS
+    SUCCEED/FAIL
+ DESCRIPTION
+    Gets a pointer to a dataspace struct after validating it. The pointer
+    can be NULL (if the ID is H5S_ALL, for example).
+ GLOBAL VARIABLES
+ COMMENTS, BUGS, ASSUMPTIONS
+ EXAMPLES
+ REVISION LOG
+--------------------------------------------------------------------------*/
+herr_t
+H5S_get_validated_dataspace(hid_t space_id, const H5S_t **space)
+{
+    herr_t ret_value = SUCCEED;     /* Return value */
+
+    FUNC_ENTER_NOAPI(FAIL)
+
+    HDassert(space);
+
+    if (space_id < 0)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid space_id (ID cannot be a negative number)")
+ 
+    if (H5S_ALL == space_id) {
+        /* No special dataspace struct for H5S_ALL */
+        *space = NULL;
+    }
+    else {
+        /* Get the dataspace pointer */
+        if (NULL == (*space = (const H5S_t *)H5I_object_verify(space_id, H5I_DATASPACE)))
+            HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "space_id is not a dataspace ID")
+
+        /* Check for valid selection */
+        if (H5S_SELECT_VALID(*space) != TRUE)
+            HGOTO_ERROR(H5E_DATASPACE, H5E_BADRANGE, FAIL, "selection + offset not within extent")
+    }
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value)
+
+} /* end H5S_get_validated_dataspace() */
+
 
 /*--------------------------------------------------------------------------
  NAME
diff --git a/src/H5Sprivate.h b/src/H5Sprivate.h
index f387fe3..e46c43b 100644
--- a/src/H5Sprivate.h
+++ b/src/H5Sprivate.h
@@ -216,6 +216,7 @@ H5_DLL herr_t H5S_set_extent_real(H5S_t *space, const hsize_t *size);
 H5_DLL herr_t H5S_set_extent_simple(H5S_t *space, unsigned rank,
     const hsize_t *dims, const hsize_t *max);
 H5_DLL H5S_t *H5S_create(H5S_class_t type);
+H5_DLL herr_t H5S_get_validated_dataspace(hid_t space_id, const H5S_t **space/*out*/);
 H5_DLL H5S_t *H5S_create_simple(unsigned rank, const hsize_t dims[/*rank*/],
     const hsize_t maxdims[/*rank*/]);
 H5_DLL herr_t H5S_set_version(H5F_t *f, H5S_t *ds);
diff --git a/src/H5vers.txt b/src/H5vers.txt
index 0303bf5..914c30e 100644
--- a/src/H5vers.txt
+++ b/src/H5vers.txt
@@ -56,6 +56,11 @@ FUNCTION: H5Ewalk; H5E_walk, H5E_error; v10, v18
 FUNCTION: H5Fget_info; H5F_info; v18, v110
 FUNCTION: H5Gcreate; ; v10, v18
 FUNCTION: H5Gopen; ; v10, v18
+FUNCTION: H5Oget_info; ; v18, v112
+FUNCTION: H5Oget_info_by_name; ; v18, v112
+FUNCTION: H5Oget_info_by_idx; ; v18, v112
+FUNCTION: H5Ovisit; ; v18, v112
+FUNCTION: H5Ovisit_by_name; ; v18, v112
 FUNCTION: H5Pget_filter; ; v10, v18
 FUNCTION: H5Pget_filter_by_id; ; v16, v18
 FUNCTION: H5Pinsert; ; v14, v18
diff --git a/src/Makefile.am b/src/Makefile.am
index 21f3966..a0defad 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -80,7 +80,7 @@ libhdf5_la_SOURCES= H5.c H5checksum.c H5dbg.c H5system.c H5timer.c H5trace.c \
         H5HP.c H5I.c H5Itest.c H5L.c H5Lexternal.c H5lib_settings.c \
         H5MF.c H5MFaggr.c H5MFdbg.c H5MFsection.c \
         H5MM.c H5MP.c H5MPtest.c \
-        H5O.c H5Oainfo.c H5Oalloc.c H5Oattr.c \
+        H5O.c H5Odeprec.c H5Oainfo.c H5Oalloc.c H5Oattr.c \
         H5Oattribute.c H5Obogus.c H5Obtreek.c H5Ocache.c H5Ocache_image.c \
         H5Ochunk.c \
         H5Ocont.c H5Ocopy.c H5Odbg.c H5Odrvinfo.c H5Odtype.c H5Oefl.c \
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 1ab7b5a..517a620 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -200,6 +200,7 @@ set (H5_TESTS
     cmpd_dset
     filter_fail
     extend
+    direct_chunk # compression lib link
     external
     efc
     objcopy
@@ -251,6 +252,7 @@ macro (ADD_H5_EXE file)
 endmacro ()
 
 set (H5_TESTS_MULTIPLE
+    direct_chunk
     testhdf5
     cache_image
     ttsafe
@@ -265,7 +267,23 @@ endforeach ()
 ##############################################################################
 ###           M U L T I P L E  S O U R C E   T E S T S                     ###
 ##############################################################################
+######### Also special handling of link libs #############
+#-- Adding test for direct_chunk
+add_executable (direct_chunk ${HDF5_TEST_SOURCE_DIR}/direct_chunk.c)
+target_include_directories(direct_chunk PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};${HDF5_TEST_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
+TARGET_C_PROPERTIES (direct_chunk STATIC)
+target_link_libraries (direct_chunk PRIVATE ${HDF5_TEST_LIB_TARGET} ${LINK_COMP_LIBS})
+set_target_properties (direct_chunk PROPERTIES FOLDER test)
+if (BUILD_SHARED_LIBS)
+  add_executable (direct_chunk-shared ${HDF5_TEST_SOURCE_DIR}/direct_chunk.c)
+  target_include_directories(direct_chunk-shared PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};${HDF5_TEST_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
+  TARGET_C_PROPERTIES (direct_chunk-shared SHARED)
+  target_link_libraries (direct_chunk-shared PRIVATE ${HDF5_TEST_LIBSH_TARGET} ${LINK_COMP_LIBS})
+  set_target_properties (direct_chunk-shared PROPERTIES FOLDER test)
+endif ()
+
 
+######### Special handling for multiple sources #############
 #-- Adding test for testhdf5
 add_executable (testhdf5 ${testhdf5_SOURCES})
 target_include_directories(testhdf5 PRIVATE "${HDF5_SRC_DIR};${HDF5_BINARY_DIR};$<$<BOOL:${HDF5_ENABLE_PARALLEL}>:${MPI_C_INCLUDE_DIRS}>")
diff --git a/test/CMakeTests.cmake b/test/CMakeTests.cmake
index 2de0f0d..39d9d0d 100644
--- a/test/CMakeTests.cmake
+++ b/test/CMakeTests.cmake
@@ -532,6 +532,7 @@ set (test_CLEANFILES
     vds_swmr.h5
     vds_swmr_src_*.h5
     tmp/vds_src_2.h5
+    direct_chunk.h5
 )
 
 # Remove any output file left over from previous test run
diff --git a/test/Makefile.am b/test/Makefile.am
index bb80fed..dcc002c 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -55,11 +55,12 @@ TEST_PROG= testhdf5 \
            cache cache_api cache_image cache_tagging lheap ohdr stab gheap \
            evict_on_close farray earray btree2 fheap \
            pool accum hyperslab istore bittests dt_arith page_buffer \
-           dtypes dsets cmpd_dset filter_fail extend external efc objcopy links unlink \
-           twriteorder big mtime fillval mount flush1 flush2 app_ref enum \
-           set_extent ttsafe enc_dec_plist enc_dec_plist_cross_platform\
-           getname vfd ntypes dangle dtransform reserved cross_read \
-           freespace mf vds file_image unregister cache_logging cork swmr
+           dtypes dsets cmpd_dset filter_fail extend direct_chunk external efc \
+		   objcopy links unlink twriteorder big mtime fillval mount \
+		   flush1 flush2 app_ref enum set_extent ttsafe enc_dec_plist \
+		   enc_dec_plist_cross_platform getname vfd ntypes dangle dtransform \
+		   reserved cross_read freespace mf vds file_image unregister \
+		   cache_logging cork swmr
 
 # List programs to be built when testing here.
 # error_test and err_compat are built at the same time as the other tests, but executed by testerror.sh.
@@ -190,7 +191,7 @@ CHECK_CLEANFILES+=accum.h5 cmpd_dset.h5 compact_dataset.h5 dataset.h5 dset_offse
     flushrefresh_VERIFICATION_DONE atomic_data accum_swmr_big.h5 ohdr_swmr.h5 \
     test_swmr*.h5 cache_logging.h5 cache_logging.out vds_swmr.h5 vds_swmr_src_*.h5 \
     swmr[0-2].h5 swmr_writer.out swmr_writer.log.* swmr_reader.out.* swmr_reader.log.* \
-    tbogus.h5.copy cache_image_test.h5
+    tbogus.h5.copy cache_image_test.h5 direct_chunk.h5
 
 # Sources for testhdf5 executable
 testhdf5_SOURCES=testhdf5.c tarray.c tattr.c tchecksum.c tconfig.c tfile.c \
diff --git a/test/btree2.c b/test/btree2.c
index e2874b7..d26fed5 100644
--- a/test/btree2.c
+++ b/test/btree2.c
@@ -5259,7 +5259,7 @@ test_remove_basic(hid_t fapl, const H5B2_create_t *cparam,
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -5269,7 +5269,7 @@ test_remove_basic(hid_t fapl, const H5B2_create_t *cparam,
     /* Attempt to remove a non-existant record from a B-tree with 1 record */
     record = 0;
     H5E_BEGIN_TRY {
-	ret = H5B2_remove(bt2, &record, NULL, NULL);
+        ret = H5B2_remove(bt2, &record, NULL, NULL);
     } H5E_END_TRY;
     /* Should fail */
     if(ret != FAIL)
@@ -5302,7 +5302,7 @@ test_remove_basic(hid_t fapl, const H5B2_create_t *cparam,
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the root node has been freed */
@@ -5384,7 +5384,7 @@ test_remove_basic(hid_t fapl, const H5B2_create_t *cparam,
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the root node has not been freed */
@@ -5409,7 +5409,7 @@ test_remove_basic(hid_t fapl, const H5B2_create_t *cparam,
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the root node has not been freed */
@@ -5434,7 +5434,7 @@ test_remove_basic(hid_t fapl, const H5B2_create_t *cparam,
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the root node has not been freed */
@@ -5459,7 +5459,7 @@ test_remove_basic(hid_t fapl, const H5B2_create_t *cparam,
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the root node has been freed */
@@ -5544,7 +5544,7 @@ test_remove_level1_noredistrib(hid_t fapl, const H5B2_create_t *cparam,
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -5773,7 +5773,7 @@ test_remove_level1_redistrib(hid_t fapl, const H5B2_create_t *cparam,
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -5971,7 +5971,7 @@ test_remove_level1_2leaf_merge(hid_t fapl, const H5B2_create_t *cparam,
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -6149,7 +6149,7 @@ test_remove_level1_3leaf_merge(hid_t fapl, const H5B2_create_t *cparam,
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -6280,7 +6280,7 @@ test_remove_level1_promote(hid_t fapl, const H5B2_create_t *cparam,
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -6500,7 +6500,7 @@ test_remove_level1_promote_2leaf_redistrib(hid_t fapl, const H5B2_create_t *cpar
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -6647,7 +6647,7 @@ test_remove_level1_promote_3leaf_redistrib(hid_t fapl, const H5B2_create_t *cpar
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -6794,7 +6794,7 @@ test_remove_level1_promote_2leaf_merge(hid_t fapl, const H5B2_create_t *cparam,
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -6938,7 +6938,7 @@ test_remove_level1_promote_3leaf_merge(hid_t fapl, const H5B2_create_t *cparam,
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -7079,7 +7079,7 @@ test_remove_level1_collapse(hid_t fapl, const H5B2_create_t *cparam,
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -7126,7 +7126,7 @@ test_remove_level1_collapse(hid_t fapl, const H5B2_create_t *cparam,
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -7220,7 +7220,7 @@ test_remove_level2_promote(hid_t fapl, const H5B2_create_t *cparam,
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -7505,7 +7505,7 @@ test_remove_level2_promote_2internal_redistrib(hid_t fapl, const H5B2_create_t *
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -7654,7 +7654,7 @@ test_remove_level2_promote_3internal_redistrib(hid_t fapl, const H5B2_create_t *
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -7803,7 +7803,7 @@ test_remove_level2_promote_2internal_merge(hid_t fapl, const H5B2_create_t *cpar
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -7953,7 +7953,7 @@ test_remove_level2_promote_3internal_merge(hid_t fapl, const H5B2_create_t *cpar
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -8103,7 +8103,7 @@ test_remove_level2_2internal_merge_left(hid_t fapl, const H5B2_create_t *cparam,
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -8228,7 +8228,7 @@ test_remove_level2_2internal_merge_right(hid_t fapl, const H5B2_create_t *cparam
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -8353,7 +8353,7 @@ test_remove_level2_3internal_merge(hid_t fapl, const H5B2_create_t *cparam,
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -8479,7 +8479,7 @@ test_remove_level2_collapse_right(hid_t fapl, const H5B2_create_t *cparam,
         TEST_ERROR
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -8765,7 +8765,7 @@ HDfprintf(stderr, "curr_time = %lu\n", (unsigned long)curr_time);
     } /* end for */
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -8852,7 +8852,7 @@ HDfprintf(stderr, "curr_time = %lu\n", (unsigned long)curr_time);
     } /* end for */
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -8937,7 +8937,7 @@ HDfprintf(stderr, "curr_time = %lu\n", (unsigned long)curr_time);
     } /* end for */
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
@@ -9022,7 +9022,7 @@ HDfprintf(stderr, "curr_time = %lu\n", (unsigned long)curr_time);
     } /* end for */
 
     /* Query the address of the root node in the B-tree */
-    if(H5B2_get_root_addr_test(bt2, &root_addr) < 0)
+    if(H5B2__get_root_addr_test(bt2, &root_addr) < 0)
         FAIL_STACK_ERROR
 
     /* Make certain that the address of the root node is defined */
diff --git a/test/cache_tagging.c b/test/cache_tagging.c
index 7a2bb49..d34cad3 100644
--- a/test/cache_tagging.c
+++ b/test/cache_tagging.c
@@ -377,7 +377,7 @@ get_object_header_tag(hid_t loc_id, haddr_t *tag)
     H5O_info_t oinfo;           /* Object info */
 
     /* Retrieve the info for the object */
-    if(H5Oget_info(loc_id, &oinfo) < 0)
+    if(H5Oget_info2(loc_id, &oinfo, H5O_INFO_ALL) < 0)
         TEST_ERROR;
 
     /* Set the tag to return */
@@ -2937,7 +2937,7 @@ check_object_info_tags(void)
     /* Get information on an object by name  */
     /* ===================================== */
 
-    if ( H5Oget_info_by_name(fid, GROUPNAME, &oinfo, H5P_DEFAULT) < 0 ) TEST_ERROR;
+    if ( H5Oget_info_by_name2(fid, GROUPNAME, &oinfo, H5O_INFO_ALL, H5P_DEFAULT) < 0 ) TEST_ERROR;
 
     /* =================================== */
     /* Verification of Metadata Tag Values */
diff --git a/test/cork.c b/test/cork.c
index 8c685ee..dceaf5a 100644
--- a/test/cork.c
+++ b/test/cork.c
@@ -126,7 +126,7 @@ verify_old_dset_cork(void)
         TEST_ERROR
     
     /* Get dataset object header address: DSET_BT1 */
-    if(H5Oget_info(did, &oinfo) < 0)
+    if(H5Oget_info2(did, &oinfo, H5O_INFO_BASIC) < 0)
         TEST_ERROR
     
     /* Cork the dataset: DSET_BT1 */
@@ -163,7 +163,7 @@ verify_old_dset_cork(void)
         FAIL_STACK_ERROR
 
     /* Get dataset object address */
-    if(H5Oget_info(did2, &oinfo2) < 0)
+    if(H5Oget_info2(did2, &oinfo2, H5O_INFO_BASIC) < 0)
         TEST_ERROR
     
     /* Cork the dataset: DSET_COMPACT */
@@ -216,7 +216,7 @@ verify_old_dset_cork(void)
         FAIL_STACK_ERROR
 
     /* Get dataset object address: DSET_CONTIG */
-    if(H5Oget_info(did3, &oinfo3) < 0)
+    if(H5Oget_info2(did3, &oinfo3, H5O_INFO_BASIC) < 0)
         TEST_ERROR
 
     /* Cork the dataset: DSET_CONTIG */
@@ -329,7 +329,7 @@ verify_obj_dset_cork(hbool_t swmr)
         TEST_ERROR
 
     /* Get dataset object header address */
-    if(H5Oget_info(did, &oinfo) < 0)
+    if(H5Oget_info2(did, &oinfo, H5O_INFO_BASIC) < 0)
         TEST_ERROR
     
     /* Verify cork status of the dataset: DSET */
@@ -372,7 +372,7 @@ verify_obj_dset_cork(hbool_t swmr)
         TEST_ERROR
 
     /* Get dataset object header address */
-    if(H5Oget_info(did2, &oinfo2) < 0)
+    if(H5Oget_info2(did2, &oinfo2, H5O_INFO_BASIC) < 0)
         TEST_ERROR
 
     /* Cork the dataset: DSET_NONE */
@@ -546,7 +546,7 @@ verify_dset_cork(hbool_t swmr, hbool_t new_format)
         TEST_ERROR
     
     /* Get dataset object header address: DSET_EA */
-    if(H5Oget_info(did, &oinfo) < 0)
+    if(H5Oget_info2(did, &oinfo, H5O_INFO_BASIC) < 0)
         TEST_ERROR
     
     /* Cork the dataset: DSET_EA */
@@ -564,7 +564,7 @@ verify_dset_cork(hbool_t swmr, hbool_t new_format)
         TEST_ERROR
 
     /* Get dataset object header address: DSET_FA */
-    if(H5Oget_info(did2, &oinfo2) < 0)
+    if(H5Oget_info2(did2, &oinfo2, H5O_INFO_BASIC) < 0)
         TEST_ERROR
     
     /* Cork the dataset: DSET_FA */
@@ -591,7 +591,7 @@ verify_dset_cork(hbool_t swmr, hbool_t new_format)
         TEST_ERROR
 
     /* Get dataset object header address: DSET_BT2 */
-    if(H5Oget_info(did3, &oinfo3) < 0)
+    if(H5Oget_info2(did3, &oinfo3, H5O_INFO_BASIC) < 0)
         TEST_ERROR
 
     /* Cork the dataset: DSET_BT2 */
@@ -770,11 +770,11 @@ verify_group_cork(hbool_t swmr)
         TEST_ERROR
 
     /* Get group object header addresses */
-    if(H5Oget_info(gid, &oinfo) < 0)
+    if(H5Oget_info2(gid, &oinfo, H5O_INFO_BASIC) < 0)
         TEST_ERROR
-    if(H5Oget_info(gid2, &oinfo2) < 0)
+    if(H5Oget_info2(gid2, &oinfo2, H5O_INFO_BASIC) < 0)
         TEST_ERROR
-    if(H5Oget_info(gid3, &oinfo3) < 0)
+    if(H5Oget_info2(gid3, &oinfo3, H5O_INFO_BASIC) < 0)
         TEST_ERROR
 
     /* Verify cork status of the groups */
@@ -959,11 +959,11 @@ verify_named_cork(hbool_t swmr)
         TEST_ERROR
 
     /* Get named datatype object header addresses */
-    if(H5Oget_info(tid, &oinfo) < 0)
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0)
         TEST_ERROR
-    if(H5Oget_info(tid2, &oinfo2) < 0)
+    if(H5Oget_info2(tid2, &oinfo2, H5O_INFO_BASIC) < 0)
         TEST_ERROR
-    if(H5Oget_info(tid3, &oinfo3) < 0)
+    if(H5Oget_info2(tid3, &oinfo3, H5O_INFO_BASIC) < 0)
         TEST_ERROR
 
     /* Verify cork status of the named datatypes */
@@ -1063,7 +1063,7 @@ verify_named_cork(hbool_t swmr)
         FAIL_STACK_ERROR
 
     /* Get dataset object header address */
-    if(H5Oget_info(did, &oinfo4) < 0)
+    if(H5Oget_info2(did, &oinfo4, H5O_INFO_BASIC) < 0)
         TEST_ERROR
 
     /* Cork the dataset: DSET */
@@ -1277,7 +1277,7 @@ verify_multiple_cork(hbool_t swmr)
         TEST_ERROR
 
     /* Verify cork status of the group: gid2 */
-    if(H5Oget_info(gid2, &oinfo1) < 0)
+    if(H5Oget_info2(gid2, &oinfo1, H5O_INFO_BASIC) < 0)
         TEST_ERROR
     if(H5C__verify_cork_tag_test(fid2, oinfo1.addr, TRUE) < 0) 
         TEST_ERROR
@@ -1305,7 +1305,7 @@ verify_multiple_cork(hbool_t swmr)
         TEST_ERROR
 
     /* Verify cork status of the dataset: did1 */
-    if(H5Oget_info(did1, &oinfo2) < 0)
+    if(H5Oget_info2(did1, &oinfo2, H5O_INFO_BASIC) < 0)
         TEST_ERROR
     if(H5C__verify_cork_tag_test(fid1, oinfo2.addr, TRUE) < 0) 
         TEST_ERROR
@@ -1333,7 +1333,7 @@ verify_multiple_cork(hbool_t swmr)
         TEST_ERROR
 
     /* Verify cork status of the datatype: tid2 */
-    if(H5Oget_info(tid2, &oinfo3) < 0)
+    if(H5Oget_info2(tid2, &oinfo3, H5O_INFO_BASIC) < 0)
         TEST_ERROR
     if(H5C__verify_cork_tag_test(fid2, oinfo3.addr, TRUE) < 0) 
         TEST_ERROR
@@ -1349,7 +1349,7 @@ verify_multiple_cork(hbool_t swmr)
         TEST_ERROR
 
     /* Verify cork status of the group: gid1 */
-    if(H5Oget_info(gid1, &oinfo1) < 0)
+    if(H5Oget_info2(gid1, &oinfo1, H5O_INFO_BASIC) < 0)
         TEST_ERROR
     if(H5C__verify_cork_tag_test(fid1, oinfo1.addr, FALSE) < 0) 
         TEST_ERROR
@@ -1383,7 +1383,7 @@ verify_multiple_cork(hbool_t swmr)
         TEST_ERROR
 
     /* Verify cork status of the dataset: did2 */
-    if(H5Oget_info(did2, &oinfo2) < 0)
+    if(H5Oget_info2(did2, &oinfo2, H5O_INFO_BASIC) < 0)
         TEST_ERROR
     if(H5C__verify_cork_tag_test(fid2, oinfo2.addr, FALSE) < 0) 
         TEST_ERROR
diff --git a/hl/test/test_dset_opt.c b/test/direct_chunk.c
index ef4cf13..2ef38ea 100644
--- a/hl/test/test_dset_opt.c
+++ b/test/direct_chunk.c
@@ -11,11 +11,7 @@
  * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
-#include <stdlib.h>
-#include <string.h>
-#include "h5hltest.h"
-#include "H5DOpublic.h"
-#include <math.h>
+#include "h5test.h"
 
 #if defined(H5_HAVE_ZLIB_H) && !defined(H5_ZLIB_HEADER) 
 # define H5_ZLIB_HEADER "zlib.h"
@@ -24,7 +20,7 @@
 # include H5_ZLIB_HEADER /* "zlib.h" */
 #endif
 
-#define FILE_NAME "test_dectris.h5"
+#define FILE_NAME "direct_chunk.h5"
 
 /* Datasets for Direct Write tests */
 #define DATASETNAME1        "direct_write"
@@ -100,7 +96,7 @@ const H5Z_class2_t H5Z_BOGUS2[1] = {{
 /*-------------------------------------------------------------------------
  * Function:	test_direct_chunk_write
  *
- * Purpose:	    Test the basic functionality of H5DOwrite_chunk
+ * Purpose:	    Test the basic functionality of H5Dwrite_chunk
  *
  * Return:	    Success:	0
  *		        Failure:	1
@@ -143,7 +139,7 @@ test_direct_chunk_write (hid_t file)
     hsize_t count[2];  /* Block count */
     hsize_t block[2];  /* Block sizes */
 
-    TESTING("basic functionality of H5DOwrite_chunk");
+    TESTING("basic functionality of H5Dwrite_chunk");
 
     /*
      * Create the data space with unlimited dimensions.
@@ -184,7 +180,7 @@ test_direct_chunk_write (hid_t file)
 
     /*
      * Write the data for the dataset.  It should stay in the chunk cache.
-     * It will be evicted from the cache by the H5DOwrite_chunk calls. 
+     * It will be evicted from the cache by the H5Dwrite_chunk calls. 
      */
     if((status = H5Dwrite(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
 		      dxpl, data)) < 0)
@@ -218,7 +214,7 @@ test_direct_chunk_write (hid_t file)
      * dataset, using the direct writing function.     */ 
     for(i=0; i<NX/CHUNK_NX; i++) {
         for(j=0; j<NY/CHUNK_NY; j++) {
-            status = H5DOwrite_chunk(dataset, dxpl, filter_mask, offset, z_dst_nbytes, outbuf);
+            status = H5Dwrite_chunk(dataset, dxpl, filter_mask, offset, z_dst_nbytes, outbuf);
             offset[1] += CHUNK_NY;
         }
         offset[0] += CHUNK_NX;
@@ -292,7 +288,7 @@ test_direct_chunk_write (hid_t file)
     offset[0] = offset[1] = 0;
     for(i=0; i<NX/CHUNK_NX; i++) {
         for(j=0; j<NY/CHUNK_NY; j++) {
-            status = H5DOwrite_chunk(dataset, dxpl, filter_mask, offset, z_dst_nbytes, outbuf);
+            status = H5Dwrite_chunk(dataset, dxpl, filter_mask, offset, z_dst_nbytes, outbuf);
             offset[1] += CHUNK_NY;
         }
         offset[0] += CHUNK_NX;
@@ -389,7 +385,7 @@ test_direct_chunk_overwrite_data(hid_t fid)
     int16_t     n;
     int16_t     read_buf[OVERWRITE_CHUNK_NY][OVERWRITE_CHUNK_2NX];
 
-    TESTING("overwriting existing data with H5DOwrite_chunk");
+    TESTING("overwriting existing data with H5Dwrite_chunk");
 
     /* Create the dataset's data space */
     if ((sid = H5Screate_simple(OVERWRITE_NDIMS, dset_dims, dset_max_dims)) < 0)
@@ -417,17 +413,17 @@ test_direct_chunk_overwrite_data(hid_t fid)
     }
 
     /* Write chunk data using the direct write function. */
-    if (H5DOwrite_chunk(did, H5P_DEFAULT, filter_mask, offset, buf_size, data_buf) < 0)
+    if (H5Dwrite_chunk(did, H5P_DEFAULT, filter_mask, offset, buf_size, data_buf) < 0)
         FAIL_STACK_ERROR
 
     /* Write second chunk. */
     offset[2] = OVERWRITE_CHUNK_NX;
-    if (H5DOwrite_chunk(did, H5P_DEFAULT, filter_mask, offset, buf_size, data_buf) < 0)
+    if (H5Dwrite_chunk(did, H5P_DEFAULT, filter_mask, offset, buf_size, data_buf) < 0)
         FAIL_STACK_ERROR
 
     /* Overwrite first chunk. */
     offset[2] = 0;
-    if (H5DOwrite_chunk(did, H5P_DEFAULT, filter_mask, offset, buf_size, overwrite_buf) < 0)
+    if (H5Dwrite_chunk(did, H5P_DEFAULT, filter_mask, offset, buf_size, overwrite_buf) < 0)
         FAIL_STACK_ERROR
 
     /* Read the data back out */
@@ -504,7 +500,7 @@ test_skip_compress_write1(hid_t file)
     hsize_t count[2];  /* Block count */
     hsize_t block[2];  /* Block sizes */
 
-    TESTING("skipping compression filter for H5DOwrite_chunk/H5DOread_chunk");
+    TESTING("skipping compression filter for H5Dwrite_chunk/H5Dread_chunk");
 
     /*
      * Create the data space with unlimited dimensions.
@@ -551,7 +547,7 @@ test_skip_compress_write1(hid_t file)
 
     filter_mask = 0x00000001;
 
-    if((status = H5DOwrite_chunk(dataset, dxpl, filter_mask, offset, buf_size, direct_buf)) < 0)
+    if((status = H5Dwrite_chunk(dataset, dxpl, filter_mask, offset, buf_size, direct_buf)) < 0)
         goto error;
 
     if(H5Fflush(dataset, H5F_SCOPE_LOCAL) < 0)
@@ -597,7 +593,7 @@ test_skip_compress_write1(hid_t file)
 
     /* Read the raw chunk back */
     HDmemset(&read_direct_buf, 0, sizeof(read_direct_buf));
-    if((status = H5DOread_chunk(dataset, H5P_DEFAULT, offset, &read_filter_mask, read_direct_buf)) < 0)
+    if((status = H5Dread_chunk(dataset, H5P_DEFAULT, offset, &read_filter_mask, read_direct_buf)) < 0)
         goto error;
     if(read_filter_mask != filter_mask)
         goto error;
@@ -822,7 +818,7 @@ test_skip_compress_write2(hid_t file)
     /* compression filter is the middle one to be skipped */
     filter_mask = 0x00000002;
 
-    if((status = H5DOwrite_chunk(dataset, dxpl, filter_mask, offset, buf_size, direct_buf)) < 0)
+    if((status = H5Dwrite_chunk(dataset, dxpl, filter_mask, offset, buf_size, direct_buf)) < 0)
         goto error;
 
     if(H5Fflush(dataset, H5F_SCOPE_LOCAL) < 0)
@@ -868,7 +864,7 @@ test_skip_compress_write2(hid_t file)
 
     /* Read the raw chunk back */
     HDmemset(&read_direct_buf, 0, sizeof(read_direct_buf));
-    if((status = H5DOread_chunk(dataset, H5P_DEFAULT, offset, &read_filter_mask, read_direct_buf)) < 0)
+    if((status = H5Dread_chunk(dataset, H5P_DEFAULT, offset, &read_filter_mask, read_direct_buf)) < 0)
         goto error;
     if(read_filter_mask != filter_mask)
         goto error;
@@ -948,7 +944,7 @@ test_data_conv(hid_t file)
     unsigned    filter_mask = 0;
     src_type_t  direct_buf[CHUNK_NX][CHUNK_NY];
     dst_type_t  check_chunk[CHUNK_NX][CHUNK_NY];
-    src_type_t  read_chunk[CHUNK_NX][CHUNK_NY];       /* For H5DOread_chunk */
+    src_type_t  read_chunk[CHUNK_NX][CHUNK_NY];       /* For H5Dread_chunk */
 
     hsize_t     offset[2] = {0, 0};
     size_t      buf_size = CHUNK_NX*CHUNK_NY*sizeof(src_type_t);
@@ -958,7 +954,7 @@ test_data_conv(hid_t file)
     hsize_t count[2];  /* Block count */
     hsize_t block[2];  /* Block sizes */
 
-    TESTING("data conversion for H5DOwrite_chunk/H5DOread_chunk");
+    TESTING("data conversion for H5Dwrite_chunk/H5Dread_chunk");
 
     /*
      * Create the data space with unlimited dimensions.
@@ -1031,7 +1027,7 @@ test_data_conv(hid_t file)
     offset[0] = CHUNK_NX;
     offset[1] = CHUNK_NY;
 
-    if((status = H5DOwrite_chunk(dataset, dxpl, filter_mask, offset, buf_size, direct_buf)) < 0)
+    if((status = H5Dwrite_chunk(dataset, dxpl, filter_mask, offset, buf_size, direct_buf)) < 0)
         goto error;
 
     if(H5Fflush(dataset, H5F_SCOPE_LOCAL) < 0) 
@@ -1043,8 +1039,8 @@ test_data_conv(hid_t file)
     if((dataset = H5Dopen2(file, DATASETNAME4, H5P_DEFAULT)) < 0)
         goto error;
 
-    /* Use H5DOread_chunk() to read the uncompressed data */
-    if((status = H5DOread_chunk(dataset, dxpl, offset, &filter_mask, read_chunk)) < 0)
+    /* Use H5Dread_chunk() to read the uncompressed data */
+    if((status = H5Dread_chunk(dataset, dxpl, offset, &filter_mask, read_chunk)) < 0)
         goto error;
 
     /* Check that the values read are the same as the values written */
@@ -1141,7 +1137,7 @@ error:
 /*-------------------------------------------------------------------------
  * Function:	test_invalid_parameters
  *
- * Purpose:     Test invalid parameters for H5DOwrite_chunk and H5DOread_chunk
+ * Purpose:     Test invalid parameters for H5Dwrite_chunk and H5Dread_chunk
  *
  * Return:      Success:	0
  *              Failure:	1
@@ -1170,7 +1166,7 @@ test_invalid_parameters(hid_t file)
 
     hsize_t     chunk_nbytes;       /* Chunk size */
 
-    TESTING("invalid parameters for H5DOwrite_chunk/H5DOread_chunk");
+    TESTING("invalid parameters for H5Dwrite_chunk/H5Dread_chunk");
 
     /*
      * Create the data space with unlimited dimensions.
@@ -1188,7 +1184,7 @@ test_invalid_parameters(hid_t file)
         goto error;
 
     /*
-     * Create a new contiguous dataset to verify H5DOwrite_chunk/H5DOread_chunk doesn't work
+     * Create a new contiguous dataset to verify H5Dwrite_chunk/H5Dread_chunk doesn't work
      */
     if((dataset = H5Dcreate2(file, DATASETNAME5, H5T_NATIVE_INT, dataspace, H5P_DEFAULT,
 			cparms, H5P_DEFAULT)) < 0)
@@ -1208,7 +1204,7 @@ test_invalid_parameters(hid_t file)
     offset[1] = CHUNK_NY;
 
     H5E_BEGIN_TRY {
-        if((status = H5DOwrite_chunk(dataset, dxpl, filter_mask, offset, buf_size, direct_buf)) != FAIL)
+        if((status = H5Dwrite_chunk(dataset, dxpl, filter_mask, offset, buf_size, direct_buf)) != FAIL)
             goto error;
     } H5E_END_TRY;
 
@@ -1218,9 +1214,9 @@ test_invalid_parameters(hid_t file)
             goto error;
     } H5E_END_TRY;
 
-    /* Try to H5DOread_chunk from the contiguous dataset.  It should fail */
+    /* Try to H5Dread_chunk from the contiguous dataset.  It should fail */
     H5E_BEGIN_TRY {
-        if((status = H5DOread_chunk(dataset, dxpl, offset, &filter_mask, direct_buf)) != FAIL)
+        if((status = H5Dread_chunk(dataset, dxpl, offset, &filter_mask, direct_buf)) != FAIL)
             goto error;
     } H5E_END_TRY;
 
@@ -1243,83 +1239,83 @@ test_invalid_parameters(hid_t file)
 			cparms, H5P_DEFAULT)) < 0)
         goto error;
 
-    /* Check invalid dataset ID for H5DOwrite_chunk and H5DOread_chunk */ 
+    /* Check invalid dataset ID for H5Dwrite_chunk and H5Dread_chunk */ 
     H5E_BEGIN_TRY {
-        if((status = H5DOwrite_chunk((hid_t)-1, dxpl, filter_mask, offset, buf_size, direct_buf)) != FAIL)
+        if((status = H5Dwrite_chunk((hid_t)-1, dxpl, filter_mask, offset, buf_size, direct_buf)) != FAIL)
             goto error;
     } H5E_END_TRY;
 
     H5E_BEGIN_TRY {
-        if((status = H5DOread_chunk((hid_t)-1, dxpl, offset, &filter_mask, direct_buf)) != FAIL)
+        if((status = H5Dread_chunk((hid_t)-1, dxpl, offset, &filter_mask, direct_buf)) != FAIL)
             goto error;
     } H5E_END_TRY;
 
-    /* Check invalid DXPL ID for H5DOwrite_chunk and H5DOread_chunk */
+    /* Check invalid DXPL ID for H5Dwrite_chunk and H5Dread_chunk */
     H5E_BEGIN_TRY {
-        if((status = H5DOwrite_chunk(dataset, (hid_t)-1, filter_mask, offset, buf_size, direct_buf)) != FAIL)
+        if((status = H5Dwrite_chunk(dataset, (hid_t)-1, filter_mask, offset, buf_size, direct_buf)) != FAIL)
             goto error;
     } H5E_END_TRY;
 
     H5E_BEGIN_TRY {
-        if((status = H5DOread_chunk(dataset, (hid_t)-1, offset, &filter_mask, direct_buf)) != FAIL)
+        if((status = H5Dread_chunk(dataset, (hid_t)-1, offset, &filter_mask, direct_buf)) != FAIL)
             goto error;
     } H5E_END_TRY;
 
-    /* Check invalid OFFSET for H5DOwrite_chunk and H5DOread_chunk */
+    /* Check invalid OFFSET for H5Dwrite_chunk and H5Dread_chunk */
     H5E_BEGIN_TRY {
-        if((status = H5DOwrite_chunk(dataset, dxpl, filter_mask, NULL, buf_size, direct_buf)) != FAIL)
+        if((status = H5Dwrite_chunk(dataset, dxpl, filter_mask, NULL, buf_size, direct_buf)) != FAIL)
             goto error;
     } H5E_END_TRY;
 
     H5E_BEGIN_TRY {
-        if((status = H5DOread_chunk(dataset, dxpl, NULL, &filter_mask, direct_buf)) != FAIL)
+        if((status = H5Dread_chunk(dataset, dxpl, NULL, &filter_mask, direct_buf)) != FAIL)
             goto error;
     } H5E_END_TRY;
 
-    /* Check when OFFSET is out of dataset range for H5DOwrite_chunk and H5DOread_chunk */
+    /* Check when OFFSET is out of dataset range for H5Dwrite_chunk and H5Dread_chunk */
     offset[0] = NX + 1;
     offset[1] = NY;
     H5E_BEGIN_TRY {
-        if((status = H5DOwrite_chunk(dataset, dxpl, filter_mask, offset, buf_size, direct_buf)) != FAIL)
+        if((status = H5Dwrite_chunk(dataset, dxpl, filter_mask, offset, buf_size, direct_buf)) != FAIL)
             goto error;
     } H5E_END_TRY;
 
     H5E_BEGIN_TRY {
-        if((status = H5DOread_chunk(dataset, dxpl, offset, &filter_mask, direct_buf)) != FAIL)
+        if((status = H5Dread_chunk(dataset, dxpl, offset, &filter_mask, direct_buf)) != FAIL)
             goto error;
     } H5E_END_TRY;
 
-    /* Check when OFFSET is not on chunk boundary for H5DOwrite_chunk and H5DOread_chunk */
+    /* Check when OFFSET is not on chunk boundary for H5Dwrite_chunk and H5Dread_chunk */
     offset[0] = CHUNK_NX;
     offset[1] = CHUNK_NY + 1;
     H5E_BEGIN_TRY {
-        if((status = H5DOwrite_chunk(dataset, dxpl, filter_mask, offset, buf_size, direct_buf)) != FAIL)
+        if((status = H5Dwrite_chunk(dataset, dxpl, filter_mask, offset, buf_size, direct_buf)) != FAIL)
             goto error;
     } H5E_END_TRY;
 
     H5E_BEGIN_TRY {
-        if((status = H5DOread_chunk(dataset, dxpl, offset, &filter_mask, direct_buf)) != FAIL)
+        if((status = H5Dread_chunk(dataset, dxpl, offset, &filter_mask, direct_buf)) != FAIL)
             goto error;
     } H5E_END_TRY;
 
-    /* Check invalid buffer size for H5DOwrite_chunk only */
+    /* Check invalid buffer size for H5Dwrite_chunk only */
     offset[0] = CHUNK_NX;
     offset[1] = CHUNK_NY;
     buf_size = 0; 
     H5E_BEGIN_TRY {
-        if((status = H5DOwrite_chunk(dataset, dxpl, filter_mask, offset, buf_size, direct_buf)) != FAIL)
+        if((status = H5Dwrite_chunk(dataset, dxpl, filter_mask, offset, buf_size, direct_buf)) != FAIL)
             goto error;
     } H5E_END_TRY;
 
-    /* Check invalid data buffer for H5DOwrite_chunk and H5DOread_chunk */
+    /* Check invalid data buffer for H5Dwrite_chunk and H5Dread_chunk */
     buf_size = CHUNK_NX*CHUNK_NY*sizeof(int);
     H5E_BEGIN_TRY {
-        if((status = H5DOwrite_chunk(dataset, dxpl, filter_mask, offset, buf_size, NULL)) != FAIL)
+        if((status = H5Dwrite_chunk(dataset, dxpl, filter_mask, offset, buf_size, NULL)) != FAIL)
             goto error;
     } H5E_END_TRY;
 
     H5E_BEGIN_TRY {
-        if((status = H5DOread_chunk(dataset, dxpl, offset, &filter_mask, NULL)) != FAIL)
+        if((status = H5Dread_chunk(dataset, dxpl, offset, &filter_mask, NULL)) != FAIL)
             goto error;
     } H5E_END_TRY;
 
@@ -1353,7 +1349,7 @@ error:
 /*-------------------------------------------------------------------------
  * Function:    test_direct_chunk_read_no_cache
  *
- * Purpose:     Test the basic functionality of H5DOread_chunk with the
+ * Purpose:     Test the basic functionality of H5Dread_chunk with the
  *              chunk cache diabled.
  *
  * Return:      Success:        0
@@ -1379,10 +1375,10 @@ test_direct_chunk_read_no_cache (hid_t file)
     int         data[NX][NY];
     int         i, j, k, l, n;      /* local index variables */
 
-    unsigned    filter_mask = 0;    /* filter mask returned from H5DOread_chunk */
-    int         direct_buf[CHUNK_NX][CHUNK_NY];  /* chunk read with H5DOread and manually decompressed */
+    unsigned    filter_mask = 0;    /* filter mask returned from H5Dread_chunk */
+    int         direct_buf[CHUNK_NX][CHUNK_NY];  /* chunk read with H5Dread and manually decompressed */
     int         check_chunk[CHUNK_NX][CHUNK_NY]; /* chunk read with H5Dread */
-    hsize_t     offset[2]; /* chunk offset used for H5DOread_chunk */
+    hsize_t     offset[2]; /* chunk offset used for H5Dread_chunk */
     size_t      buf_size = CHUNK_NX*CHUNK_NY*sizeof(int);
 
     Bytef       *z_src = NULL;      /* source buffer        */
@@ -1397,7 +1393,7 @@ test_direct_chunk_read_no_cache (hid_t file)
     hsize_t count[2];  /* Block count */
     hsize_t block[2];  /* Block sizes */
 
-    TESTING("basic functionality of H5DOread_chunk (chunk cache disabled)");
+    TESTING("basic functionality of H5Dread_chunk (chunk cache disabled)");
 
     /* Create the data space with unlimited dimensions. */
     if((dataspace = H5Screate_simple(RANK, dims, maxdims)) < 0)
@@ -1442,7 +1438,7 @@ test_direct_chunk_read_no_cache (hid_t file)
     outbuf = HDmalloc(z_src_nbytes);
     z_src = (Bytef *)outbuf;
 
-    /* For each chunk in the dataset, compare the result of H5Dread and H5DOread_chunk. */
+    /* For each chunk in the dataset, compare the result of H5Dread and H5Dread_chunk. */
     for(i=0; i<NX/CHUNK_NX; i++) {
         for(j=0; j<NY/CHUNK_NY; j++) {
             /* Select hyperslab for one chunk in the file */
@@ -1461,7 +1457,7 @@ test_direct_chunk_read_no_cache (hid_t file)
 
             offset[0] = (hsize_t)i * CHUNK_NX; offset[1] = (hsize_t)j * CHUNK_NY;
             /* Read the compressed chunk back using the direct read function. */
-            if((status = H5DOread_chunk(dataset, dxpl, offset, &filter_mask, outbuf)) < 0)
+            if((status = H5Dread_chunk(dataset, dxpl, offset, &filter_mask, outbuf)) < 0)
                 goto error;
 
             /* Check filter mask return value */
@@ -1547,10 +1543,10 @@ test_direct_chunk_read_cache (hid_t file, hbool_t flush)
     int         data[NX][NY];
     int         i, j, k, l, n;      /* local index variables */
 
-    unsigned    filter_mask = 0;    /* filter mask returned from H5DOread_chunk */
-    int         direct_buf[CHUNK_NX][CHUNK_NY];  /* chunk read with H5DOread and manually decompressed */
+    unsigned    filter_mask = 0;    /* filter mask returned from H5Dread_chunk */
+    int         direct_buf[CHUNK_NX][CHUNK_NY];  /* chunk read with H5Dread and manually decompressed */
     int         check_chunk[CHUNK_NX][CHUNK_NY]; /* chunk read with H5Dread */
-    hsize_t     offset[2]; /* chunk offset used for H5DOread_chunk */
+    hsize_t     offset[2]; /* chunk offset used for H5Dread_chunk */
     size_t      buf_size = CHUNK_NX*CHUNK_NY*sizeof(int);
 
     Bytef       *z_src = NULL;      /* source buffer        */
@@ -1567,9 +1563,9 @@ test_direct_chunk_read_cache (hid_t file, hbool_t flush)
     hsize_t block[2];  /* Block sizes */
 
     if(flush) {
-        TESTING("basic functionality of H5DOread_chunk (flush chunk cache)");
+        TESTING("basic functionality of H5Dread_chunk (flush chunk cache)");
     } else {
-        TESTING("basic functionality of H5DOread_chunk (does not flush chunk cache)");
+        TESTING("basic functionality of H5Dread_chunk (does not flush chunk cache)");
     }
 
     /* Create the data space with unlimited dimensions. */
@@ -1615,7 +1611,7 @@ test_direct_chunk_read_cache (hid_t file, hbool_t flush)
     outbuf = HDmalloc(z_src_nbytes);
     z_src = (Bytef *)outbuf;
 
-    /* For each chunk in the dataset, compare the result of H5Dread and H5DOread_chunk. */
+    /* For each chunk in the dataset, compare the result of H5Dread and H5Dread_chunk. */
     for(i=0; i<NX/CHUNK_NX; i++) {
         for(j=0; j<NY/CHUNK_NY; j++) {
             /* Select hyperslab for one chunk in the file */
@@ -1641,7 +1637,7 @@ test_direct_chunk_read_cache (hid_t file, hbool_t flush)
                 goto error;
         
             /* Read the compressed chunk back using the direct read function. */
-            if((status = H5DOread_chunk(dataset, dxpl, offset, &filter_mask, outbuf)) < 0)
+            if((status = H5Dread_chunk(dataset, dxpl, offset, &filter_mask, outbuf)) < 0)
                 goto error;
 
             /* Check filter mask return value */
@@ -1713,7 +1709,7 @@ error:
 /*-------------------------------------------------------------------------
  * Function:    test_read_unfiltered_dset
  *
- * Purpose:     Test the basic functionality of H5DOread_chunk on a dataset
+ * Purpose:     Test the basic functionality of H5Dread_chunk on a dataset
  *              without no filters applied.
  *
  * Return:      Success:        0
@@ -1749,7 +1745,7 @@ test_read_unfiltered_dset(hid_t file)
     hsize_t count[2];  /* Block count */
     hsize_t block[2];  /* Block sizes */
 
-    TESTING("basic functionality of H5DOread_chunk on unfiltered datasets");
+    TESTING("basic functionality of H5Dread_chunk on unfiltered datasets");
 
     /* Create the data space with unlimited dimensions. */
     if((dataspace = H5Screate_simple(RANK, dims, maxdims)) < 0)
@@ -1778,7 +1774,7 @@ test_read_unfiltered_dset(hid_t file)
 
     /* Write the data for the dataset.
      * It should stay in the chunk cache and will be evicted/flushed by
-     * the H5DOread_chunk function call. */
+     * the H5Dread_chunk function call. */
     if((status = H5Dwrite(dataset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
               dxpl, data)) < 0)
         goto error;
@@ -1786,7 +1782,7 @@ test_read_unfiltered_dset(hid_t file)
     if(H5Fflush(dataset, H5F_SCOPE_LOCAL) < 0)
         goto error;
 
-    /* For each chunk in the dataset, compare the result of H5Dread and H5DOread_chunk. */
+    /* For each chunk in the dataset, compare the result of H5Dread and H5Dread_chunk. */
     for(i=0; i<NX/CHUNK_NX; i++) {
         for(j=0; j<NY/CHUNK_NY; j++) {
             /* Select hyperslab for one chunk in the file */
@@ -1814,7 +1810,7 @@ test_read_unfiltered_dset(hid_t file)
             /* Read the raw chunk back */
             HDmemset(&direct_buf, 0, sizeof(direct_buf));
             filter_mask = UINT_MAX;
-            if((status = H5DOread_chunk(dataset, dxpl, offset, &filter_mask, direct_buf)) < 0)
+            if((status = H5Dread_chunk(dataset, dxpl, offset, &filter_mask, direct_buf)) < 0)
                 goto error;
 
             /* Check filter mask return value */
@@ -1861,7 +1857,7 @@ error:
 /*-------------------------------------------------------------------------
  * Function:    test_read_unallocated_chunk
  *
- * Purpose:     Tests the H5DOread_chunk and H5Dget_chunk_storage_size with valid
+ * Purpose:     Tests the H5Dread_chunk and H5Dget_chunk_storage_size with valid
  *              offets to chunks that have not been written to the dataset and are
  *              not allocated in the chunk storage on disk.
  *
@@ -1887,11 +1883,11 @@ test_read_unallocated_chunk (hid_t file)
     herr_t      status;     /* status from H5 function calls */
     hsize_t     i, j;       /* local index variables */
 
-    unsigned    filter_mask = 0;    /* filter mask returned from H5DOread_chunk */
-    int         direct_buf[CHUNK_NX][CHUNK_NY]; /* chunk read with H5DOread and manually decompressed */
-    hsize_t     offset[2];  /* chunk offset used for H5DOread_chunk */
+    unsigned    filter_mask = 0;    /* filter mask returned from H5Dread_chunk */
+    int         direct_buf[CHUNK_NX][CHUNK_NY]; /* chunk read with H5Dread and manually decompressed */
+    hsize_t     offset[2];  /* chunk offset used for H5Dread_chunk */
 
-    TESTING("H5DOread_chunk with unallocated chunks");
+    TESTING("H5Dread_chunk with unallocated chunks");
 
     /* Create the data space with unlimited dimensions. */
     if((dataspace = H5Screate_simple(RANK, dims, maxdims)) < 0)
@@ -1917,11 +1913,11 @@ test_read_unallocated_chunk (hid_t file)
     HDmemset(&chunk_dims, 0, sizeof(chunk_dims));
     offset[0] = 0; offset[1] = 0;
 
-    if(H5DOwrite_chunk(dataset, dxpl, filter_mask, offset, chunk_nbytes, &chunk_dims) < 0)
+    if(H5Dwrite_chunk(dataset, dxpl, filter_mask, offset, chunk_nbytes, &chunk_dims) < 0)
         goto error;
 
     /* Attempt to read each chunk in the dataset. Chunks are not allocated,
-     * therefore we expect the result of H5DOread_chunk to fail. Chunk idx starts
+     * therefore we expect the result of H5Dread_chunk to fail. Chunk idx starts
      * at 1, since one chunk was written to init the chunk storage. */
     for(i=1; i<NX/CHUNK_NX; i++) {
         for(j=0; j<NY/CHUNK_NY; j++) {
@@ -1931,7 +1927,7 @@ test_read_unallocated_chunk (hid_t file)
 
             /* Read a non-existant chunk using the direct read function. */
             H5E_BEGIN_TRY {
-                status = H5DOread_chunk(dataset, dxpl, offset, &filter_mask, &direct_buf);
+                status = H5Dread_chunk(dataset, dxpl, offset, &filter_mask, &direct_buf);
             } H5E_END_TRY;
 
             /* Check that the chunk read call does not succeed. */
@@ -2013,7 +2009,7 @@ test_single_chunk_latest(void)
     int rdata[DIM0][DIM1];  /* Read buffer */
     int i, j;               /* Local index variable */
 
-    TESTING("H5DOwrite_chunk with single chunk and latest format");
+    TESTING("H5Dwrite_chunk with single chunk and latest format");
 
     /* Initialize data */
     for (i=0; i<DIM0; i++) {
@@ -2044,7 +2040,7 @@ test_single_chunk_latest(void)
         goto error;
 
     /* Write the data directly to the dataset */
-    if(H5DOwrite_chunk(did, H5P_DEFAULT, 0, offset, CHUNK0*CHUNK1*4, (void *)wdata) < 0)
+    if(H5Dwrite_chunk(did, H5P_DEFAULT, 0, offset, CHUNK0*CHUNK1*4, (void *)wdata) < 0)
         goto error;
 
     /*
@@ -2112,8 +2108,8 @@ error:
 /*-------------------------------------------------------------------------
  * Function:	Main function
  *
- * Purpose:	    Test direct chunk write function H5DOwrite_chunk and
- *              chunk direct read function H5DOread_chunk
+ * Purpose:	    Test direct chunk write function H5Dwrite_chunk and
+ *              chunk direct read function H5Dread_chunk
  *
  * Return:	    Success:	0
  *		        Failure:	1
diff --git a/test/dsets.c b/test/dsets.c
index ca1e3d5..d23f438 100644
--- a/test/dsets.c
+++ b/test/dsets.c
@@ -10719,9 +10719,9 @@ test_earray_hdr_fd(const char *env_h5_driver, hid_t fapl)
         FAIL_STACK_ERROR;
 
     /* The second call triggered a bug in the library (JIRA issue: SWMR-95) */
-    if(H5Oget_info_by_name(fid, DSET_EARRAY_HDR_FD, &info, H5P_DEFAULT) < 0)
+    if(H5Oget_info_by_name2(fid, DSET_EARRAY_HDR_FD, &info, H5O_INFO_BASIC, H5P_DEFAULT) < 0)
         FAIL_STACK_ERROR;
-    if(H5Oget_info_by_name(fid, DSET_EARRAY_HDR_FD, &info, H5P_DEFAULT) < 0)
+    if(H5Oget_info_by_name2(fid, DSET_EARRAY_HDR_FD, &info, H5O_INFO_BASIC, H5P_DEFAULT) < 0)
         FAIL_STACK_ERROR;
 
     if(H5Pclose(fapl) < 0)
@@ -10839,9 +10839,9 @@ test_farray_hdr_fd(const char *env_h5_driver, hid_t fapl)
         FAIL_STACK_ERROR;
 
     /* The second call triggered a bug in the library (JIRA issue: SWMR-95) */
-    if(H5Oget_info_by_name(fid, DSET_FARRAY_HDR_FD, &info, H5P_DEFAULT) < 0)
+    if(H5Oget_info_by_name2(fid, DSET_FARRAY_HDR_FD, &info, H5O_INFO_BASIC, H5P_DEFAULT) < 0)
         FAIL_STACK_ERROR;
-    if(H5Oget_info_by_name(fid, DSET_FARRAY_HDR_FD, &info, H5P_DEFAULT) < 0)
+    if(H5Oget_info_by_name2(fid, DSET_FARRAY_HDR_FD, &info, H5O_INFO_BASIC, H5P_DEFAULT) < 0)
         FAIL_STACK_ERROR;
 
     if(H5Pclose(fapl) < 0)
@@ -10959,9 +10959,9 @@ test_bt2_hdr_fd(const char *env_h5_driver, hid_t fapl)
         FAIL_STACK_ERROR;
 
     /* The second call triggered a bug in the library (JIRA issue: SWMR-95) */
-    if(H5Oget_info_by_name(fid, DSET_BT2_HDR_FD, &info, H5P_DEFAULT) < 0)
+    if(H5Oget_info_by_name2(fid, DSET_BT2_HDR_FD, &info, H5O_INFO_BASIC, H5P_DEFAULT) < 0)
         FAIL_STACK_ERROR;
-    if(H5Oget_info_by_name(fid, DSET_BT2_HDR_FD, &info, H5P_DEFAULT) < 0)
+    if(H5Oget_info_by_name2(fid, DSET_BT2_HDR_FD, &info, H5O_INFO_BASIC, H5P_DEFAULT) < 0)
         FAIL_STACK_ERROR;
 
     if(H5Pclose(fapl) < 0)
@@ -12680,7 +12680,7 @@ dls_01_read_stuff( hid_t fid ) {
     did = H5Dopen2( fid, DLS_01_DATASET, H5P_DEFAULT );
     if ( did <= 0 ) TEST_ERROR
 
-    status = H5Oget_info( did, &info );
+    status = H5Oget_info2( did, &info, H5O_INFO_BASIC );
     if ( status != 0 ) TEST_ERROR
 
     status = H5Dclose( did );
diff --git a/test/dtypes.c b/test/dtypes.c
index 1a27634..3253d6c 100644
--- a/test/dtypes.c
+++ b/test/dtypes.c
@@ -5897,7 +5897,7 @@ test_latest(void)
         FAIL_STACK_ERROR
 
     /* Get information about datatype on disk */
-    if(H5Oget_info_by_name(file, compnd_type, &oi, H5P_DEFAULT) < 0)
+    if(H5Oget_info_by_name2(file, compnd_type, &oi, H5O_INFO_HDR, H5P_DEFAULT) < 0)
         FAIL_STACK_ERROR
     old_dtype_oh_size = oi.hdr.space.total;
 
@@ -5922,7 +5922,7 @@ test_latest(void)
         FAIL_STACK_ERROR
 
     /* Get information about datatype on disk */
-    if(H5Oget_info_by_name(file, compnd_type, &oi, H5P_DEFAULT) < 0)
+    if(H5Oget_info_by_name2(file, compnd_type, &oi, H5O_INFO_HDR, H5P_DEFAULT) < 0)
         FAIL_STACK_ERROR
 
     /* Check that the object header info is still the same */
@@ -5958,7 +5958,7 @@ test_latest(void)
         FAIL_STACK_ERROR
 
     /* Get information about datatype on disk */
-    if(H5Oget_info_by_name(file, compnd_type, &oi, H5P_DEFAULT) < 0)
+    if(H5Oget_info_by_name2(file, compnd_type, &oi, H5O_INFO_HDR, H5P_DEFAULT) < 0)
         FAIL_STACK_ERROR
     new_dtype_oh_size = oi.hdr.space.total;
 
@@ -5987,7 +5987,7 @@ test_latest(void)
         FAIL_STACK_ERROR
 
     /* Get information about datatype on disk */
-    if(H5Oget_info_by_name(file, compnd_type, &oi, H5P_DEFAULT) < 0)
+    if(H5Oget_info_by_name2(file, compnd_type, &oi, H5O_INFO_HDR, H5P_DEFAULT) < 0)
         FAIL_STACK_ERROR
 
     /* Check that the object header info is still the same */
diff --git a/test/flushrefresh.c b/test/flushrefresh.c
index 0775dee..4196d85 100644
--- a/test/flushrefresh.c
+++ b/test/flushrefresh.c
@@ -848,7 +848,7 @@ herr_t flush_verification(const char * obj_pathname, const char * expected)
     H5E_BEGIN_TRY {
         fid = H5Fopen(FILENAME, H5F_ACC_SWMR_READ, H5P_DEFAULT);
         oid = H5Oopen(fid, obj_pathname, H5P_DEFAULT);
-        status = H5Oget_info(oid, &oinfo);
+        status = H5Oget_info2(oid, &oinfo, H5O_INFO_BASIC);
     } H5E_END_TRY;
 
     /* Compare to expected result */
@@ -989,7 +989,7 @@ herr_t refresh_verification(const char * obj_pathname)
     if((oid = H5Oopen(fid, obj_pathname, H5P_DEFAULT)) < 0) PROCESS_ERROR;
 
     /* Get Object info */
-    if((status = H5Oget_info(oid, &flushed_oinfo)) < 0) PROCESS_ERROR;
+    if((status = H5Oget_info2(oid, &flushed_oinfo, H5O_INFO_BASIC|H5O_INFO_NUM_ATTRS|H5O_INFO_HDR)) < 0) PROCESS_ERROR;
     
     /* Make sure there are no attributes on the object. This is just a sanity
         check to ensure we didn't erroneously flush the attribute before
@@ -1008,7 +1008,7 @@ herr_t refresh_verification(const char * obj_pathname)
     /* Get object info again. This will NOT reflect what's on disk, only what's 
        in the cache. Thus, all values will be unchanged from above, despite 
        newer information being on disk. */
-    if((status = H5Oget_info(oid, &refreshed_oinfo)) < 0) PROCESS_ERROR;
+    if((status = H5Oget_info2(oid, &refreshed_oinfo, H5O_INFO_BASIC|H5O_INFO_NUM_ATTRS|H5O_INFO_HDR)) < 0) PROCESS_ERROR;
 
     /* Verify that before doing a refresh, getting the object info returns stale
        information. (i.e., unchanged from above, despite new info on disk). */
@@ -1046,7 +1046,7 @@ herr_t refresh_verification(const char * obj_pathname)
 	} /* end else */
 
 	/* Get object info. This should now accurately reflect the refreshed object on disk. */
-	if((status = H5Oget_info(oid, &refreshed_oinfo)) < 0) PROCESS_ERROR;
+	if((status = H5Oget_info2(oid, &refreshed_oinfo, H5O_INFO_BASIC|H5O_INFO_NUM_ATTRS|H5O_INFO_HDR)) < 0) PROCESS_ERROR;
     
 	/* Confirm following (first 4) attributes are the same: */
 	/* Confirm following (last 4) attributes are different */
diff --git a/test/genall5.c b/test/genall5.c
index e3a9c96..37bab7a 100644
--- a/test/genall5.c
+++ b/test/genall5.c
@@ -650,7 +650,7 @@ vrfy_ns_grp_c(hid_t fid, const char *group_name, unsigned nlinks)
             HDassert(H5L_TYPE_HARD == lnk_info.type);
 
             memset(&root_oinfo, 0, sizeof(root_oinfo));
-            ret = H5Oget_info(fid, &root_oinfo);
+            ret = H5Oget_info2(fid, &root_oinfo, H5O_INFO_BASIC);
 
 	    if ( ret < 0 ) {
 
@@ -1130,7 +1130,7 @@ vrfy_ns_grp_d(hid_t fid, const char *group_name, unsigned nlinks)
             HDassert(H5L_TYPE_HARD == lnk_info.type);
 
             memset(&root_oinfo, 0, sizeof(root_oinfo));
-            ret = H5Oget_info(fid, &root_oinfo);
+            ret = H5Oget_info2(fid, &root_oinfo, H5O_INFO_BASIC);
 	    if ( ret < 0 ) {
 
 	        pass = FALSE;
@@ -1825,7 +1825,7 @@ vrfy_os_grp_n(hid_t fid, const char *group_name, int proc_num, unsigned nlinks)
             HDassert(H5L_TYPE_HARD == lnk_info.type);
 
             memset(&root_oinfo, 0, sizeof(root_oinfo));
-            ret = H5Oget_info(fid, &root_oinfo);
+            ret = H5Oget_info2(fid, &root_oinfo, H5O_INFO_BASIC);
 
 	    if ( ret < 0 ) {
 
diff --git a/test/getname.c b/test/getname.c
index c3f3c54..873ceb9 100644
--- a/test/getname.c
+++ b/test/getname.c
@@ -2390,7 +2390,7 @@ test_main(hid_t file_id, hid_t fapl)
     if((size = H5Iget_name(dtype_anon, NULL,0)) != 0) TEST_ERROR
 
     /* Store the address of the datatype for later use */
-    if(H5Oget_info(dtype_anon, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(dtype_anon, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
 
     /* Update the reference count to dtype_anon to preserve the datatype */
     if(H5Oincr_refcount(dtype_anon) < 0) TEST_ERROR
@@ -2937,7 +2937,7 @@ test_elinks(hid_t fapl)
     /* Query the external link object's name */
     *name = '\0';
     name_cached = FALSE;
-    namelen = H5I_get_name_test(group, (char*)name, sizeof(name), &name_cached);
+    namelen = H5I__get_name_test(group, (char*)name, sizeof(name), &name_cached);
     if(!((HDstrcmp(name, "/Group2") == 0) && (namelen == 7) && name_cached))
         TEST_ERROR
 
@@ -2952,7 +2952,7 @@ test_elinks(hid_t fapl)
     /* Query the external link to external link object's name */
     *name = '\0';
     name_cached = FALSE;
-    namelen = H5I_get_name_test(group, (char*)name, sizeof(name), &name_cached);
+    namelen = H5I__get_name_test(group, (char*)name, sizeof(name), &name_cached);
     if(!((HDstrcmp(name, "/Group2") == 0) && (namelen == 7) && name_cached))
         TEST_ERROR
 
diff --git a/test/h5test.c b/test/h5test.c
index bbdd58b..687f594 100644
--- a/test/h5test.c
+++ b/test/h5test.c
@@ -1694,8 +1694,8 @@ h5_verify_cached_stabs(const char *base_name[], hid_t fapl)
             continue;
         } /* end if */
 
-        if(H5Ovisit(file, H5_INDEX_NAME, H5_ITER_NATIVE,
-                h5_verify_cached_stabs_cb, NULL) < 0)
+        if(H5Ovisit2(file, H5_INDEX_NAME, H5_ITER_NATIVE,
+                h5_verify_cached_stabs_cb, NULL, H5O_INFO_BASIC) < 0)
             goto error;
 
         if(H5Fclose(file) < 0)
diff --git a/test/links.c b/test/links.c
index 4e88af5..fb2c75a 100644
--- a/test/links.c
+++ b/test/links.c
@@ -541,8 +541,8 @@ cklinks(hid_t fapl, hbool_t new_format)
     if((file = H5Fopen(filename, H5F_ACC_RDONLY, fapl)) < 0) FAIL_STACK_ERROR
 
     /* Hard link */
-    if(H5Oget_info_by_name(file, "d1", &oinfo1, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
-    if(H5Oget_info_by_name(file, "grp1/hard", &oinfo2, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(file, "d1", &oinfo1, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(file, "grp1/hard", &oinfo2, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
     if(H5O_TYPE_DATASET != oinfo2.type) {
 	H5_FAILED();
 	printf("    %d: Unexpected object type should have been a dataset\n", __LINE__);
@@ -577,7 +577,7 @@ cklinks(hid_t fapl, hbool_t new_format)
     } /* end if */
 
     /* Symbolic link */
-    if(H5Oget_info_by_name(file, "grp1/soft", &oinfo2, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(file, "grp1/soft", &oinfo2, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
     if(H5O_TYPE_DATASET != oinfo2.type) {
 	H5_FAILED();
 	printf("    %d: Unexpected object type should have been a dataset\n", __LINE__);
@@ -599,7 +599,7 @@ cklinks(hid_t fapl, hbool_t new_format)
 
     /* Dangling link */
     H5E_BEGIN_TRY {
-	status = H5Oget_info_by_name(file, "grp1/dangle", &oinfo2, H5P_DEFAULT);
+	status = H5Oget_info_by_name2(file, "grp1/dangle", &oinfo2, H5O_INFO_BASIC, H5P_DEFAULT);
     } H5E_END_TRY;
     if(status >= 0) {
 	H5_FAILED();
@@ -626,7 +626,7 @@ cklinks(hid_t fapl, hbool_t new_format)
 
     /* Recursive link */
     H5E_BEGIN_TRY {
-	status = H5Oget_info_by_name(file, "grp1/recursive", &oinfo2, H5P_DEFAULT);
+	status = H5Oget_info_by_name2(file, "grp1/recursive", &oinfo2, H5O_INFO_BASIC, H5P_DEFAULT);
     } H5E_END_TRY;
     if(status >= 0) {
 	H5_FAILED();
@@ -696,11 +696,11 @@ ck_new_links(hid_t fapl, hbool_t new_format)
     if((file = H5Fopen(filename, H5F_ACC_RDONLY, fapl)) < 0) TEST_ERROR
 
     /* Get hard link info */
-    if(H5Oget_info_by_name(file, "/grp1/dataset2", &oi_dset, H5P_DEFAULT) < 0)
+    if(H5Oget_info_by_name2(file, "/grp1/dataset2", &oi_dset, H5O_INFO_BASIC, H5P_DEFAULT) < 0)
 	TEST_ERROR
-    if(H5Oget_info_by_name(file, "/grp1/hard1", &oi_hard1, H5P_DEFAULT) < 0)
+    if(H5Oget_info_by_name2(file, "/grp1/hard1", &oi_hard1, H5O_INFO_BASIC, H5P_DEFAULT) < 0)
 	TEST_ERROR
-    if(H5Oget_info_by_name(file, "/grp2/hard2", &oi_hard2, H5P_DEFAULT) < 0)
+    if(H5Oget_info_by_name2(file, "/grp2/hard2", &oi_hard2, H5O_INFO_BASIC, H5P_DEFAULT) < 0)
 	TEST_ERROR
 
     /* Check hard links */
@@ -1504,7 +1504,7 @@ test_move_preserves(hid_t fapl_id, hbool_t new_format)
 
     /* Get the group's link's information */
     if(H5Lget_info(file_id, "group", &linfo, H5P_DEFAULT) < 0) TEST_ERROR
-    if(H5Oget_info_by_name(file_id, "group", &oinfo, H5P_DEFAULT) < 0) TEST_ERROR
+    if(H5Oget_info_by_name2(file_id, "group", &oinfo, H5O_INFO_TIME, H5P_DEFAULT) < 0) TEST_ERROR
     old_cset = linfo.cset;
     if(old_cset != H5T_CSET_UTF8) TEST_ERROR
     if(linfo.corder_valid != TRUE) TEST_ERROR
@@ -1523,7 +1523,7 @@ test_move_preserves(hid_t fapl_id, hbool_t new_format)
 
     /* Get the link's character set & modification time .  They should be unchanged */
     if(H5Lget_info(file_id, "group", &linfo, H5P_DEFAULT) < 0) TEST_ERROR
-    if(H5Oget_info_by_name(file_id, "group", &oinfo, H5P_DEFAULT) < 0) TEST_ERROR
+    if(H5Oget_info_by_name2(file_id, "group", &oinfo, H5O_INFO_TIME, H5P_DEFAULT) < 0) TEST_ERROR
     if(old_modification_time != oinfo.mtime) TEST_ERROR
     if(old_cset != linfo.cset) TEST_ERROR
     if(linfo.corder_valid != TRUE) TEST_ERROR
@@ -1531,7 +1531,7 @@ test_move_preserves(hid_t fapl_id, hbool_t new_format)
 
     /* Create a new link to the group.  It should have a different creation order value but the same modification time */
     if(H5Lcreate_hard(file_id, "group", file_id, "group2", H5P_DEFAULT, H5P_DEFAULT) < 0) TEST_ERROR
-    if(H5Oget_info_by_name(file_id, "group2", &oinfo, H5P_DEFAULT) < 0) TEST_ERROR
+    if(H5Oget_info_by_name2(file_id, "group2", &oinfo, H5O_INFO_TIME, H5P_DEFAULT) < 0) TEST_ERROR
     if(old_modification_time != oinfo.mtime) TEST_ERROR
     if(H5Lget_info(file_id, "group2", &linfo, H5P_DEFAULT) < 0) TEST_ERROR
     if(old_corder == linfo.corder) TEST_ERROR
@@ -1544,7 +1544,7 @@ test_move_preserves(hid_t fapl_id, hbool_t new_format)
      * should not change.
      */
     if(H5Lcopy(file_id, "group", file_id, "group_copied", lcpl_id, H5P_DEFAULT) < 0) TEST_ERROR
-    if(H5Oget_info_by_name(file_id, "group_copied", &oinfo, H5P_DEFAULT) < 0) TEST_ERROR
+    if(H5Oget_info_by_name2(file_id, "group_copied", &oinfo, H5O_INFO_TIME, H5P_DEFAULT) < 0) TEST_ERROR
     if(old_modification_time != oinfo.mtime) TEST_ERROR
     if(H5Lget_info(file_id, "group_copied", &linfo, H5P_DEFAULT) < 0) TEST_ERROR
     if(linfo.corder_valid != TRUE) TEST_ERROR
@@ -1555,7 +1555,7 @@ test_move_preserves(hid_t fapl_id, hbool_t new_format)
 
     /* Move the link with the default property list. */
     if(H5Lmove(file_id, "group_copied", file_id, "group_copied2", H5P_DEFAULT, H5P_DEFAULT) < 0) TEST_ERROR
-    if(H5Oget_info_by_name(file_id, "group_copied2", &oinfo, H5P_DEFAULT) < 0) TEST_ERROR
+    if(H5Oget_info_by_name2(file_id, "group_copied2", &oinfo, H5O_INFO_TIME, H5P_DEFAULT) < 0) TEST_ERROR
     if(old_modification_time != oinfo.mtime) TEST_ERROR
     if(H5Lget_info(file_id, "group_copied2", &linfo, H5P_DEFAULT) < 0) TEST_ERROR
     if(linfo.corder_valid != TRUE) TEST_ERROR
@@ -1565,7 +1565,7 @@ test_move_preserves(hid_t fapl_id, hbool_t new_format)
     if(linfo.cset == H5T_CSET_UTF8) TEST_ERROR
 
     /* Check that the original link is unchanged */
-    if(H5Oget_info_by_name(file_id, "group", &oinfo, H5P_DEFAULT) < 0) TEST_ERROR
+    if(H5Oget_info_by_name2(file_id, "group", &oinfo, H5O_INFO_TIME, H5P_DEFAULT) < 0) TEST_ERROR
     if(old_modification_time != oinfo.mtime) TEST_ERROR
     if(H5Lget_info(file_id, "group", &linfo, H5P_DEFAULT) < 0) TEST_ERROR
     if(linfo.corder_valid != TRUE) TEST_ERROR
@@ -1576,7 +1576,7 @@ test_move_preserves(hid_t fapl_id, hbool_t new_format)
      *  Its creation order value will change, but modification time should not
      *  change. */
     if(H5Lmove(file_id, "group", file_id, "group_moved", lcpl_id, H5P_DEFAULT) < 0) TEST_ERROR
-    if(H5Oget_info_by_name(file_id, "group_moved", &oinfo, H5P_DEFAULT) < 0) TEST_ERROR
+    if(H5Oget_info_by_name2(file_id, "group_moved", &oinfo, H5O_INFO_TIME, H5P_DEFAULT) < 0) TEST_ERROR
     if(old_modification_time != oinfo.mtime) TEST_ERROR
     if(H5Lget_info(file_id, "group_moved", &linfo, H5P_DEFAULT) < 0) TEST_ERROR
     if(linfo.corder_valid != TRUE) TEST_ERROR
@@ -1587,7 +1587,7 @@ test_move_preserves(hid_t fapl_id, hbool_t new_format)
 
     /* Move the link again using the default property list. */
     if(H5Lmove(file_id, "group_moved", file_id, "group_moved_again", H5P_DEFAULT, H5P_DEFAULT) < 0) TEST_ERROR
-    if(H5Oget_info_by_name(file_id, "group_moved_again", &oinfo, H5P_DEFAULT) < 0) TEST_ERROR
+    if(H5Oget_info_by_name2(file_id, "group_moved_again", &oinfo, H5O_INFO_TIME, H5P_DEFAULT) < 0) TEST_ERROR
     if(old_modification_time != oinfo.mtime) TEST_ERROR
     if(H5Lget_info(file_id, "group_moved_again", &linfo, H5P_DEFAULT) < 0) TEST_ERROR
     if(linfo.corder_valid != TRUE) TEST_ERROR
@@ -5377,7 +5377,7 @@ external_link_query(hid_t fapl, hbool_t new_format)
     if(HDstrcmp(object_name, "/dst")) TEST_ERROR
 
     /* Query information about object that external link points to */
-    if(H5Oget_info_by_name(fid, "src", &oi, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(fid, "src", &oi, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
     if(H5O_TYPE_GROUP != oi.type) {
 	H5_FAILED();
 	HDputs("    Unexpected object type - should have been a group");
@@ -6110,8 +6110,8 @@ external_link_closing(hid_t fapl, hbool_t new_format)
     /* Test that getting info works */
     if(H5Lget_info(fid1, "elink/elink/elink/type1", &li, H5P_DEFAULT) < 0) TEST_ERROR
     if(H5Lget_info(fid1, "elink/elink/elink", &li, H5P_DEFAULT) < 0) TEST_ERROR
-    if(H5Oget_info_by_name(fid1, "elink/elink/elink/type1", &oi, H5P_DEFAULT) < 0) TEST_ERROR
-    if(H5Oget_info_by_name(fid1, "elink/elink/elink", &oi, H5P_DEFAULT) < 0) TEST_ERROR
+    if(H5Oget_info_by_name2(fid1, "elink/elink/elink/type1", &oi, H5O_INFO_BASIC, H5P_DEFAULT) < 0) TEST_ERROR
+    if(H5Oget_info_by_name2(fid1, "elink/elink/elink", &oi, H5O_INFO_BASIC, H5P_DEFAULT) < 0) TEST_ERROR
 
     /* Test move */
     if(H5Lmove(fid1, "elink/elink/elink/group1", fid1,
@@ -6198,7 +6198,7 @@ external_link_closing(hid_t fapl, hbool_t new_format)
     if(H5Gclose(gid) < 0) TEST_ERROR
     if((gid = H5Gcreate2(fid1, "elink/elink2/group2/group3/group4", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0) TEST_ERROR
     if(H5Gclose(gid) < 0) TEST_ERROR
-    if(H5Oget_info_by_name(fid1, "elink/elink2/group2/group3/group4", &oi, H5P_DEFAULT) < 0) TEST_ERROR
+    if(H5Oget_info_by_name2(fid1, "elink/elink2/group2/group3/group4", &oi, H5O_INFO_BASIC, H5P_DEFAULT) < 0) TEST_ERROR
 
     /* Add a few regular groups and a soft link in file2 using intermediate group creation */
     if((lcpl_id = H5Pcreate(H5P_LINK_CREATE)) < 0) TEST_ERROR
@@ -9608,13 +9608,13 @@ obj_visit(hid_t fapl, hbool_t new_format)
     /* Visit all the objects reachable from the root group (with file ID) */
     udata.idx = 0;
     udata.info = new_format ? ovisit0_new : ovisit0_old;
-    if(H5Ovisit(fid, H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, &udata) < 0) FAIL_STACK_ERROR
+    if(H5Ovisit2(fid, H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, &udata, H5O_INFO_BASIC) < 0) FAIL_STACK_ERROR
 
     /* Visit all the objects reachable from the root group (with group ID) */
     if((gid = H5Gopen2(fid, "/", H5P_DEFAULT)) < 0) FAIL_STACK_ERROR
     udata.idx = 0;
     udata.info = new_format ? ovisit0_new : ovisit0_old;
-    if(H5Ovisit(gid, H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, &udata) < 0) FAIL_STACK_ERROR
+    if(H5Ovisit2(gid, H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, &udata, H5O_INFO_BASIC) < 0) FAIL_STACK_ERROR
     if(H5Gclose(gid) < 0) FAIL_STACK_ERROR
 
 
@@ -9622,13 +9622,13 @@ obj_visit(hid_t fapl, hbool_t new_format)
     if((gid = H5Gopen2(fid, "/Group1", H5P_DEFAULT)) < 0) FAIL_STACK_ERROR
     udata.idx = 0;
     udata.info = new_format ? ovisit1_new : ovisit1_old;
-    if(H5Ovisit(gid, H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, &udata) < 0) FAIL_STACK_ERROR
+    if(H5Ovisit2(gid, H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, &udata, H5O_INFO_BASIC) < 0) FAIL_STACK_ERROR
     if(H5Gclose(gid) < 0) FAIL_STACK_ERROR
 
     if((gid = H5Gopen2(fid, "/Group1/Group2", H5P_DEFAULT)) < 0) FAIL_STACK_ERROR
     udata.idx = 0;
     udata.info = new_format ? ovisit2_new : ovisit2_old;
-    if(H5Ovisit(gid, H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, &udata) < 0) FAIL_STACK_ERROR
+    if(H5Ovisit2(gid, H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, &udata, H5O_INFO_BASIC) < 0) FAIL_STACK_ERROR
     if(H5Gclose(gid) < 0) FAIL_STACK_ERROR
 
 
@@ -9678,36 +9678,36 @@ obj_visit_by_name(hid_t fapl, hbool_t new_format)
     /* Visit all the objects reachable from the root group (with file ID) */
     udata.idx = 0;
     udata.info = new_format ? ovisit0_new : ovisit0_old;
-    if(H5Ovisit_by_name(fid, "/", H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, &udata, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Ovisit_by_name2(fid, "/", H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, &udata, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
 
     /* Visit all the objects reachable from the root group (with group ID) */
     if((gid = H5Gopen2(fid, "/", H5P_DEFAULT)) < 0) FAIL_STACK_ERROR
     udata.idx = 0;
     udata.info = new_format ? ovisit0_new : ovisit0_old;
-    if(H5Ovisit_by_name(gid, ".", H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, &udata, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Ovisit_by_name2(gid, ".", H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, &udata, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
     if(H5Gclose(gid) < 0) FAIL_STACK_ERROR
 
 
     /* Visit all the objects reachable from each internal group */
     udata.idx = 0;
     udata.info = new_format ? ovisit1_new : ovisit1_old;
-    if(H5Ovisit_by_name(fid, "/Group1", H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, &udata, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Ovisit_by_name2(fid, "/Group1", H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, &udata, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
 
     if((gid = H5Gopen2(fid, "/Group1", H5P_DEFAULT)) < 0) FAIL_STACK_ERROR
     udata.idx = 0;
     udata.info = new_format ? ovisit1_new : ovisit1_old;
-    if(H5Ovisit_by_name(gid, ".", H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, &udata, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Ovisit_by_name2(gid, ".", H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, &udata, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
     if(H5Gclose(gid) < 0) FAIL_STACK_ERROR
 
 
     udata.idx = 0;
     udata.info = new_format ? ovisit2_new : ovisit2_old;
-    if(H5Ovisit_by_name(fid, "/Group1/Group2", H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, &udata, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Ovisit_by_name2(fid, "/Group1/Group2", H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, &udata, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
 
     if((gid = H5Gopen2(fid, "/Group1/Group2", H5P_DEFAULT)) < 0) FAIL_STACK_ERROR
     udata.idx = 0;
     udata.info = new_format ? ovisit2_new : ovisit2_old;
-    if(H5Ovisit_by_name(gid, ".", H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, &udata, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Ovisit_by_name2(gid, ".", H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, &udata, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
     if(H5Gclose(gid) < 0) FAIL_STACK_ERROR
 
 
@@ -9784,15 +9784,15 @@ obj_visit_stop(hid_t fapl, hbool_t new_format)
      * returns H5_ITER_STOP
      */
     nvisited = 0;
-    if((ret = H5Ovisit(fid, H5_INDEX_NAME, H5_ITER_INC, visit_obj_stop_cb, &nvisited)) < 0)
+    if((ret = H5Ovisit2(fid, H5_INDEX_NAME, H5_ITER_INC, visit_obj_stop_cb, &nvisited, H5O_INFO_BASIC)) < 0)
         FAIL_STACK_ERROR
     if(ret != H5_ITER_STOP) TEST_ERROR
     if(nvisited != 1) TEST_ERROR
 
     /* Same test with H5Ovisit_by_name */
     nvisited = 0;
-    if((ret = H5Ovisit_by_name(fid, "/", H5_INDEX_NAME, H5_ITER_INC, visit_obj_stop_cb,
-        &nvisited, H5P_DEFAULT)) < 0) FAIL_STACK_ERROR
+    if((ret = H5Ovisit_by_name2(fid, "/", H5_INDEX_NAME, H5_ITER_INC, visit_obj_stop_cb,
+        &nvisited, H5O_INFO_BASIC, H5P_DEFAULT)) < 0) FAIL_STACK_ERROR
     if(ret != H5_ITER_STOP) TEST_ERROR
     if(nvisited != 1) TEST_ERROR
 
@@ -11596,7 +11596,7 @@ link_info_by_idx_old(hid_t fapl)
                 if((group_id2 = H5Gcreate2(group_id, objname, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0) TEST_ERROR
 
                 /* Retrieve group's address on disk */
-                if(H5Oget_info(group_id2, &oi) < 0) TEST_ERROR
+                if(H5Oget_info2(group_id2, &oi, H5O_INFO_BASIC) < 0) TEST_ERROR
                 objno[u] = oi.addr;
 
                 /* Close group */
@@ -12095,7 +12095,7 @@ delete_by_idx_old(hid_t fapl)
             if((group_id2 = H5Gcreate2(group_id, objname, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0) TEST_ERROR
 
             /* Retrieve group's address on disk */
-            if(H5Oget_info(group_id2, &oi) < 0) TEST_ERROR
+            if(H5Oget_info2(group_id2, &oi, H5O_INFO_BASIC) < 0) TEST_ERROR
             objno[u] = oi.addr;
 
             /* Close group */
@@ -12168,7 +12168,7 @@ delete_by_idx_old(hid_t fapl)
             if((group_id2 = H5Gcreate2(group_id, objname, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0) TEST_ERROR
 
             /* Retrieve group's address on disk */
-            if(H5Oget_info(group_id2, &oi) < 0) TEST_ERROR
+            if(H5Oget_info2(group_id2, &oi, H5O_INFO_BASIC) < 0) TEST_ERROR
             objno[u] = oi.addr;
 
             /* Close group */
@@ -13163,7 +13163,7 @@ open_by_idx_check(hid_t main_group_id, hid_t soft_group_id, hid_t mount_file_id,
             if((obj_id = H5Oopen_by_idx(group_id, ".", idx_type, order, (hsize_t)u, H5P_DEFAULT)) < 0) TEST_ERROR
 
             /* Get the object's information */
-            if(H5Oget_info(obj_id, &oi) < 0) TEST_ERROR
+            if(H5Oget_info2(obj_id, &oi, H5O_INFO_BASIC) < 0) TEST_ERROR
 
             /* Check that the object is the correct one */
             if(order == H5_ITER_INC) {
@@ -13189,7 +13189,7 @@ open_by_idx_check(hid_t main_group_id, hid_t soft_group_id, hid_t mount_file_id,
      */
 
     /* Get the address of the root group in the file to mount */
-    if(H5Oget_info(mount_file_id, &oi) < 0) TEST_ERROR
+    if(H5Oget_info2(mount_file_id, &oi, H5O_INFO_BASIC) < 0) TEST_ERROR
     mnt_root_addr = oi.addr;
 
     /* Mount a file over a group in main group */
@@ -13201,7 +13201,7 @@ open_by_idx_check(hid_t main_group_id, hid_t soft_group_id, hid_t mount_file_id,
     if((obj_id = H5Oopen_by_idx(group_id, ".", H5_INDEX_NAME, H5_ITER_INC, (hsize_t)mnt_idx, H5P_DEFAULT)) < 0) TEST_ERROR
 
     /* Get the object's information */
-    if(H5Oget_info(obj_id, &oi) < 0) TEST_ERROR
+    if(H5Oget_info2(obj_id, &oi, H5O_INFO_BASIC) < 0) TEST_ERROR
 
     /* Check that the object is the root of the mounted file and not in the previous file */
     if(H5F_addr_ne(oi.addr, mnt_root_addr)) TEST_ERROR
@@ -13352,7 +13352,7 @@ open_by_idx(hid_t fapl)
                     if((group_id2 = H5Gcreate2(group_id, objname, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0) TEST_ERROR
 
                     /* Retrieve group's address on disk */
-                    if(H5Oget_info(group_id2, &oi) < 0) TEST_ERROR
+                    if(H5Oget_info2(group_id2, &oi, H5O_INFO_BASIC) < 0) TEST_ERROR
                     objno[u] = oi.addr;
 
                     /* Close group created */
@@ -13387,7 +13387,7 @@ open_by_idx(hid_t fapl)
                     if((group_id2 = H5Gcreate2(group_id, objname, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0) TEST_ERROR
 
                     /* Retrieve group's address on disk */
-                    if(H5Oget_info(group_id2, &oi) < 0) TEST_ERROR
+                    if(H5Oget_info2(group_id2, &oi, H5O_INFO_BASIC) < 0) TEST_ERROR
                     objno[u] = oi.addr;
 
                     /* Close group created */
@@ -13529,7 +13529,7 @@ open_by_idx_old(hid_t fapl)
             if((group_id2 = H5Gcreate2(group_id, objname, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0) TEST_ERROR
 
             /* Retrieve group's address on disk */
-            if(H5Oget_info(group_id2, &oi) < 0) TEST_ERROR
+            if(H5Oget_info2(group_id2, &oi, H5O_INFO_BASIC) < 0) TEST_ERROR
             objno[u] = oi.addr;
 
             /* Close group created */
@@ -13623,14 +13623,14 @@ object_info_check(hid_t main_group_id, hid_t soft_group_id, H5_index_t idx_type,
             sprintf(objname, "filler %02u", u);
 
             /* Query the object's information, by name */
-            if(H5Oget_info_by_name(group_id, objname, &oinfo, H5P_DEFAULT) < 0) TEST_ERROR
+            if(H5Oget_info_by_name2(group_id, objname, &oinfo, H5O_INFO_BASIC|H5O_INFO_NUM_ATTRS, H5P_DEFAULT) < 0) TEST_ERROR
 
             /* Check that the object is the correct one */
             if(H5F_addr_ne(oinfo.addr, objno[u])) TEST_ERROR
             if(H5F_addr_ne(oinfo.num_attrs, u)) TEST_ERROR
 
             /* Query the object's information, by index */
-            if(H5Oget_info_by_idx(group_id, ".", idx_type, order, (hsize_t)u, &oinfo, H5P_DEFAULT) < 0) TEST_ERROR
+            if(H5Oget_info_by_idx2(group_id, ".", idx_type, order, (hsize_t)u, &oinfo, H5O_INFO_BASIC|H5O_INFO_NUM_ATTRS, H5P_DEFAULT) < 0) TEST_ERROR
 
             /* Check that the object is the correct one */
             if(order == H5_ITER_INC) {
@@ -13772,7 +13772,7 @@ object_info(hid_t fapl)
 
                 /* Check for out of bound query by index on empty group */
                 H5E_BEGIN_TRY {
-                    ret = H5Oget_info_by_idx(group_id, ".", H5_INDEX_NAME, order, (hsize_t)0, &oinfo, H5P_DEFAULT);
+                    ret = H5Oget_info_by_idx2(group_id, ".", H5_INDEX_NAME, order, (hsize_t)0, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
                 } H5E_END_TRY;
                 if(ret >= 0) TEST_ERROR
 
@@ -13788,7 +13788,7 @@ object_info(hid_t fapl)
                     if((group_id2 = H5Gcreate2(group_id, objname, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0) TEST_ERROR
 
                     /* Retrieve group's address on disk */
-                    if(H5Oget_info(group_id2, &oinfo) < 0) TEST_ERROR
+                    if(H5Oget_info2(group_id2, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
                     objno[u] = oinfo.addr;
 
                     /* Create attributes on new object */
@@ -13816,7 +13816,7 @@ object_info(hid_t fapl)
 
                 /* Check for out of bound query by index */
                 H5E_BEGIN_TRY {
-                    ret = H5Oget_info_by_idx(group_id, ".", H5_INDEX_NAME, order, (hsize_t)u, &oinfo, H5P_DEFAULT);
+                    ret = H5Oget_info_by_idx2(group_id, ".", H5_INDEX_NAME, order, (hsize_t)u, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
                 } H5E_END_TRY;
                 if(ret >= 0) TEST_ERROR
 
@@ -13836,7 +13836,7 @@ object_info(hid_t fapl)
                     if((group_id2 = H5Gcreate2(group_id, objname, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0) TEST_ERROR
 
                     /* Retrieve group's address on disk */
-                    if(H5Oget_info(group_id2, &oinfo) < 0) TEST_ERROR
+                    if(H5Oget_info2(group_id2, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
                     objno[u] = oinfo.addr;
 
                     /* Create attributes on new object */
@@ -13864,7 +13864,7 @@ object_info(hid_t fapl)
 
                 /* Check for out of bound query by index */
                 H5E_BEGIN_TRY {
-                    ret = H5Oget_info_by_idx(group_id, ".", H5_INDEX_NAME, order, (hsize_t)u, &oinfo, H5P_DEFAULT);
+                    ret = H5Oget_info_by_idx2(group_id, ".", H5_INDEX_NAME, order, (hsize_t)u, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
                 } H5E_END_TRY;
                 if(ret >= 0) TEST_ERROR
 
@@ -13969,7 +13969,7 @@ object_info_old(hid_t fapl)
 
         /* Check for out of bound query by index on empty group */
         H5E_BEGIN_TRY {
-            ret = H5Oget_info_by_idx(group_id, ".", H5_INDEX_NAME, order, (hsize_t)0, &oinfo, H5P_DEFAULT);
+            ret = H5Oget_info_by_idx2(group_id, ".", H5_INDEX_NAME, order, (hsize_t)0, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
         } H5E_END_TRY;
         if(ret >= 0) TEST_ERROR
 
@@ -13985,7 +13985,7 @@ object_info_old(hid_t fapl)
             if((group_id2 = H5Gcreate2(group_id, objname, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0) TEST_ERROR
 
             /* Retrieve group's address on disk */
-            if(H5Oget_info(group_id2, &oinfo) < 0) TEST_ERROR
+            if(H5Oget_info2(group_id2, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
             objno[u] = oinfo.addr;
 
             /* Create attributes on new object */
@@ -14013,13 +14013,13 @@ object_info_old(hid_t fapl)
 
         /* Check for out of bound query by index */
         H5E_BEGIN_TRY {
-            ret = H5Oget_info_by_idx(group_id, ".", H5_INDEX_NAME, order, (hsize_t)u, &oinfo, H5P_DEFAULT);
+            ret = H5Oget_info_by_idx2(group_id, ".", H5_INDEX_NAME, order, (hsize_t)u, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
         } H5E_END_TRY;
         if(ret >= 0) TEST_ERROR
 
         /* Check for creation order index query */
         H5E_BEGIN_TRY {
-            ret = H5Oget_info_by_idx(group_id, ".", H5_INDEX_CRT_ORDER, order, (hsize_t)(u - 1), &oinfo, H5P_DEFAULT);
+            ret = H5Oget_info_by_idx2(group_id, ".", H5_INDEX_CRT_ORDER, order, (hsize_t)(u - 1), &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
         } H5E_END_TRY;
         if(ret >= 0) TEST_ERROR
 
@@ -14779,8 +14779,8 @@ timestamps(hid_t fapl)
     if(track_times != TRUE) TEST_ERROR
 
     /* Query the object information for each group */
-    if(H5Oget_info(group_id, &oinfo) < 0) TEST_ERROR
-    if(H5Oget_info(group_id2, &oinfo2) < 0) TEST_ERROR
+    if(H5Oget_info2(group_id, &oinfo, H5O_INFO_TIME|H5O_INFO_HDR) < 0) TEST_ERROR
+    if(H5Oget_info2(group_id2, &oinfo2, H5O_INFO_TIME|H5O_INFO_HDR) < 0) TEST_ERROR
 
     /* Sanity check object information for each group */
     if(oinfo.atime != 0) TEST_ERROR
@@ -14826,8 +14826,8 @@ timestamps(hid_t fapl)
     if(track_times != TRUE) TEST_ERROR
 
     /* Query the object information for each group */
-    if(H5Oget_info(group_id, &oinfo) < 0) TEST_ERROR
-    if(H5Oget_info(group_id2, &oinfo2) < 0) TEST_ERROR
+    if(H5Oget_info2(group_id, &oinfo, H5O_INFO_TIME|H5O_INFO_HDR) < 0) TEST_ERROR
+    if(H5Oget_info2(group_id2, &oinfo2, H5O_INFO_TIME|H5O_INFO_HDR) < 0) TEST_ERROR
 
     /* Sanity check object information for each group */
     if(oinfo.atime != 0) TEST_ERROR
diff --git a/test/mf.c b/test/mf.c
index a537679..9203804 100644
--- a/test/mf.c
+++ b/test/mf.c
@@ -258,13 +258,13 @@ test_mf_eoa(const char *env_h5_drvr, hid_t fapl)
         if(NULL == (f = (H5F_t *)H5I_object(file)))
             FAIL_STACK_ERROR
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         type = H5FD_MEM_SUPER;
         addr1 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE30);
 
         /* nothing should be changed in meta_aggr */
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &ma_size);
         if (new_ma_addr != ma_addr)
             TEST_ERROR
 
@@ -274,7 +274,7 @@ test_mf_eoa(const char *env_h5_drvr, hid_t fapl)
         addr2 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE50);
 
         /* nothing should be changed in meta_aggr */
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &ma_size);
         if (new_ma_addr != ma_addr)
             TEST_ERROR
 
@@ -403,7 +403,7 @@ test_mf_eoa_shrink(const char *env_h5_drvr, hid_t fapl)
         if(NULL == (f = (H5F_t *)H5I_object(file)))
             FAIL_STACK_ERROR
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         type = H5FD_MEM_SUPER;
         addr = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE30);
@@ -412,7 +412,7 @@ test_mf_eoa_shrink(const char *env_h5_drvr, hid_t fapl)
             TEST_ERROR
 
         /* nothing should be changed in meta_aggr */
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
         if (new_ma_addr != ma_addr) TEST_ERROR
         if (new_ma_size != ma_size) TEST_ERROR
 
@@ -435,14 +435,14 @@ test_mf_eoa_shrink(const char *env_h5_drvr, hid_t fapl)
         if(NULL == (f = (H5F_t *)H5I_object(file)))
             FAIL_STACK_ERROR
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         /* should succeed */
         if(H5MF_try_shrink(f, type, addr, (hsize_t)TBLOCK_SIZE30) <= 0)
             TEST_ERROR
 
         /* nothing should be changed in meta_aggr */
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &ma_size);
         if(new_ma_addr != ma_addr)
             TEST_ERROR
         if(new_ma_size != ma_size)
@@ -480,7 +480,7 @@ test_mf_eoa_shrink(const char *env_h5_drvr, hid_t fapl)
         if(NULL == (f = (H5F_t *)H5I_object(file)))
             FAIL_STACK_ERROR
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         addr = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE30);
 
@@ -492,7 +492,7 @@ test_mf_eoa_shrink(const char *env_h5_drvr, hid_t fapl)
             TEST_ERROR
 
         /* nothing should be changed in meta_aggr */
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &ma_size);
         if (new_ma_addr != ma_addr) TEST_ERROR
         if (new_ma_size != ma_size) TEST_ERROR
 
@@ -529,14 +529,14 @@ test_mf_eoa_shrink(const char *env_h5_drvr, hid_t fapl)
         if(NULL == (f = (H5F_t *)H5I_object(file)))
             FAIL_STACK_ERROR
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         /* should not succeed in shrinking */
         if(H5MF_try_shrink(f, type, addr, (hsize_t)TBLOCK_SIZE30 + 10) > 0)
             TEST_ERROR
 
         /* nothing should be changed in meta_aggr */
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &ma_size);
         if (new_ma_addr != ma_addr) TEST_ERROR
         if (new_ma_size != ma_size) TEST_ERROR
 
@@ -572,14 +572,14 @@ test_mf_eoa_shrink(const char *env_h5_drvr, hid_t fapl)
         if(NULL == (f = (H5F_t *)H5I_object(file)))
             FAIL_STACK_ERROR
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         /* should succeed in shrinking */
         if(H5MF_try_shrink(f, type, addr+10, (hsize_t)(TBLOCK_SIZE30 - 10)) <= 0)
             TEST_ERROR
 
         /* nothing should be changed in meta_aggr */
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &ma_size);
         if(new_ma_addr != ma_addr)
             TEST_ERROR
         if(new_ma_size != ma_size)
@@ -684,7 +684,7 @@ test_mf_eoa_extend(const char *env_h5_drvr, hid_t fapl)
         if(NULL == (f = (H5F_t *)H5I_object(file)))
             FAIL_STACK_ERROR
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         type = H5FD_MEM_SUPER;
         addr = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE30);
@@ -692,7 +692,7 @@ test_mf_eoa_extend(const char *env_h5_drvr, hid_t fapl)
             TEST_ERROR
 
         /* nothing should be changed in meta_aggr */
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
         if (new_ma_addr != ma_addr)
             TEST_ERROR
 
@@ -722,7 +722,7 @@ test_mf_eoa_extend(const char *env_h5_drvr, hid_t fapl)
             TEST_ERROR
 
         /* nothing should be changed in meta_aggr */
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
         if (new_ma_addr != ma_addr)
             TEST_ERROR
 
@@ -762,7 +762,7 @@ test_mf_eoa_extend(const char *env_h5_drvr, hid_t fapl)
         if(NULL == (f = (H5F_t *)H5I_object(file)))
             FAIL_STACK_ERROR
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         type = H5FD_MEM_SUPER;
         addr = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE30);
@@ -771,7 +771,7 @@ test_mf_eoa_extend(const char *env_h5_drvr, hid_t fapl)
             TEST_ERROR
 
         /* nothing should be changed in meta_aggr */
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
         if(new_ma_addr != ma_addr)
             TEST_ERROR
 
@@ -782,7 +782,7 @@ test_mf_eoa_extend(const char *env_h5_drvr, hid_t fapl)
             TEST_ERROR
 
         /* nothing should be changed in meta_aggr */
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
         if (new_ma_addr != ma_addr)
             TEST_ERROR
 
@@ -1186,7 +1186,7 @@ test_mf_fs_alloc_free(hid_t fapl)
         TEST_ERROR
 
     /* Create section A */
-    sect_node = H5MF_sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR70, (hsize_t)TBLOCK_SIZE30);
+    sect_node = H5MF__sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR70, (hsize_t)TBLOCK_SIZE30);
 
     /* Add section A to free-space manager */
     if(H5MF__add_sect(f, H5FD_MEM_SUPER, f->shared->fs_man[H5FD_MEM_SUPER], sect_node))
@@ -1263,7 +1263,7 @@ test_mf_fs_alloc_free(hid_t fapl)
         TEST_ERROR
 
     /* Create section A */
-    sect_node = H5MF_sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR70, (hsize_t)TBLOCK_SIZE30);
+    sect_node = H5MF__sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR70, (hsize_t)TBLOCK_SIZE30);
 
      /* Add section A to free-space manager */
     if(H5MF__add_sect(f, H5FD_MEM_SUPER, f->shared->fs_man[H5FD_MEM_SUPER], sect_node))
@@ -1338,7 +1338,7 @@ test_mf_fs_alloc_free(hid_t fapl)
         TEST_ERROR
 
     /* Create section A */
-    sect_node = H5MF_sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR70, (hsize_t)TBLOCK_SIZE30);
+    sect_node = H5MF__sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR70, (hsize_t)TBLOCK_SIZE30);
 
     /* Add section A to free-space manager */
     if(H5MF__add_sect(f, H5FD_MEM_SUPER, f->shared->fs_man[H5FD_MEM_SUPER], sect_node))
@@ -1511,7 +1511,7 @@ test_mf_fs_extend(hid_t fapl)
         TEST_ERROR
 
     /* Create section A */
-    sect_node1 = H5MF_sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR70, (hsize_t)TBLOCK_SIZE30);
+    sect_node1 = H5MF__sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR70, (hsize_t)TBLOCK_SIZE30);
 
     /* Add section A to free-space manager */
     if(H5MF__add_sect(f, H5FD_MEM_SUPER, f->shared->fs_man[H5FD_MEM_SUPER], sect_node1))
@@ -1540,7 +1540,7 @@ test_mf_fs_extend(hid_t fapl)
         TEST_ERROR
 
     /* Create section B */
-    sect_node2 = H5MF_sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR100, (hsize_t)TBLOCK_SIZE50);
+    sect_node2 = H5MF__sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR100, (hsize_t)TBLOCK_SIZE50);
 
     /* Add section B to free-space manager */
     if(H5MF__add_sect(f, H5FD_MEM_SUPER, f->shared->fs_man[H5FD_MEM_SUPER], sect_node2))
@@ -1619,7 +1619,7 @@ test_mf_fs_extend(hid_t fapl)
         TEST_ERROR
 
     /* Create section A */
-    sect_node1 = H5MF_sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR70, (hsize_t)TBLOCK_SIZE30);
+    sect_node1 = H5MF__sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR70, (hsize_t)TBLOCK_SIZE30);
 
     /* Add section A to free-space manager */
     if(H5MF__add_sect(f, H5FD_MEM_SUPER, f->shared->fs_man[H5FD_MEM_SUPER], sect_node1))
@@ -1648,7 +1648,7 @@ test_mf_fs_extend(hid_t fapl)
         TEST_ERROR
 
     /* Create section B */
-    sect_node2 = H5MF_sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR100, (hsize_t)TBLOCK_SIZE50);
+    sect_node2 = H5MF__sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR100, (hsize_t)TBLOCK_SIZE50);
 
     /* Add section B to free-space manager */
     if(H5MF__add_sect(f, H5FD_MEM_SUPER, f->shared->fs_man[H5FD_MEM_SUPER], sect_node2))
@@ -1721,7 +1721,7 @@ test_mf_fs_extend(hid_t fapl)
         TEST_ERROR
 
     /* Create section A */
-    sect_node1 = H5MF_sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR70, (hsize_t)TBLOCK_SIZE30);
+    sect_node1 = H5MF__sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR70, (hsize_t)TBLOCK_SIZE30);
 
     /* Add section A to free-space manager */
     if(H5MF__add_sect(f, H5FD_MEM_SUPER, f->shared->fs_man[H5FD_MEM_SUPER], sect_node1))
@@ -1750,7 +1750,7 @@ test_mf_fs_extend(hid_t fapl)
         TEST_ERROR
 
     /* Create section B */
-    sect_node2 = H5MF_sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR100, (hsize_t)TBLOCK_SIZE50);
+    sect_node2 = H5MF__sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR100, (hsize_t)TBLOCK_SIZE50);
 
     /* Add section B to free-space manager */
     if(H5MF__add_sect(f, H5FD_MEM_SUPER, f->shared->fs_man[H5FD_MEM_SUPER], sect_node2))
@@ -1823,7 +1823,7 @@ test_mf_fs_extend(hid_t fapl)
         TEST_ERROR
 
     /* Create section A */
-    sect_node1 = H5MF_sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR70, (hsize_t)(TBLOCK_SIZE30-10));
+    sect_node1 = H5MF__sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR70, (hsize_t)(TBLOCK_SIZE30-10));
 
     /* Add section A of size=20 to free-space */
     if(H5MF__add_sect(f, H5FD_MEM_SUPER, f->shared->fs_man[H5FD_MEM_SUPER], sect_node1))
@@ -1852,7 +1852,7 @@ test_mf_fs_extend(hid_t fapl)
         TEST_ERROR
 
     /* Create section B */
-    sect_node2 = H5MF_sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR100, (hsize_t)TBLOCK_SIZE50);
+    sect_node2 = H5MF__sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR100, (hsize_t)TBLOCK_SIZE50);
 
     /* Add section B to free-space manager */
     if(H5MF__add_sect(f, H5FD_MEM_SUPER, f->shared->fs_man[H5FD_MEM_SUPER], sect_node2))
@@ -1997,10 +1997,10 @@ test_mf_fs_absorb(const char *env_h5_drvr, hid_t fapl)
         /* Allocate a section from meta_aggr */
         addr = H5MF_alloc(f, H5FD_MEM_SUPER, (hsize_t)TBLOCK_SIZE30);
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
     /* Create a section */
-    sect_node = H5MF_sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)(ma_addr+ma_size), (hsize_t)TBLOCK_SIZE2048);
+    sect_node = H5MF__sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)(ma_addr+ma_size), (hsize_t)TBLOCK_SIZE2048);
 
         /* Add a section to free-space that adjoins end of the aggregator */
     if(H5MF__add_sect(f, H5FD_MEM_SUPER, f->shared->fs_man[H5FD_MEM_SUPER], sect_node))
@@ -2052,13 +2052,13 @@ test_mf_fs_absorb(const char *env_h5_drvr, hid_t fapl)
 
         /* Allocate a section from meta_aggr */
         addr = H5MF_alloc(f, H5FD_MEM_SUPER, (hsize_t)TBLOCK_SIZE30);
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         /* Allocate a section from sdata_aggr */
         saddr = H5MF_alloc(f, H5FD_MEM_DRAW, (hsize_t)TBLOCK_SIZE50);
 
         /* Add a section to free-space that adjoins the beginning of meta_aggr */
-        sect_node = H5MF_sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)addr, (hsize_t)TBLOCK_SIZE30);
+        sect_node = H5MF__sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)addr, (hsize_t)TBLOCK_SIZE30);
 
         /* When adding, meta_aggr is absorbed onto the end of the section */
         if(H5MF__add_sect(f, H5FD_MEM_SUPER, f->shared->fs_man[H5FD_MEM_SUPER], sect_node))
@@ -2172,7 +2172,7 @@ test_mf_aggr_alloc1(const char *env_h5_drvr, hid_t fapl)
         if((addr1 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE30)) == HADDR_UNDEF)
             TEST_ERROR
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
         if((addr1+TBLOCK_SIZE30) != ma_addr)
             TEST_ERROR
 
@@ -2180,7 +2180,7 @@ test_mf_aggr_alloc1(const char *env_h5_drvr, hid_t fapl)
         if((addr2 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE50)) == HADDR_UNDEF)
             TEST_ERROR
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
         if((addr2+TBLOCK_SIZE50) != ma_addr)
             TEST_ERROR
         if(ma_size != (TBLOCK_SIZE2048 - (TBLOCK_SIZE30 + TBLOCK_SIZE50)))
@@ -2311,13 +2311,13 @@ test_mf_aggr_alloc2(const char *env_h5_drvr, hid_t fapl)
         type = H5FD_MEM_SUPER;
         addr1 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE30);
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
         if((addr1+TBLOCK_SIZE30) != ma_addr)
             TEST_ERROR
 
         addr2 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE50);
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
         if((addr2+TBLOCK_SIZE50) != ma_addr)
             TEST_ERROR
 
@@ -2326,7 +2326,7 @@ test_mf_aggr_alloc2(const char *env_h5_drvr, hid_t fapl)
 
         addr3 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE2058);
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if((addr3+TBLOCK_SIZE2058) != ma_addr)
             TEST_ERROR
@@ -2468,14 +2468,14 @@ test_mf_aggr_alloc3(const char *env_h5_drvr, hid_t fapl)
         type = H5FD_MEM_SUPER;
         addr1 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE30);
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
         if ((addr1+TBLOCK_SIZE30) != ma_addr)
             TEST_ERROR
 
         /* Allocate second block from meta_aggr */
         addr2 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE50);
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if((addr2+TBLOCK_SIZE50) != ma_addr)
             TEST_ERROR
@@ -2485,7 +2485,7 @@ test_mf_aggr_alloc3(const char *env_h5_drvr, hid_t fapl)
         /* Allocate first block from sdata_aggr */
         stype = H5FD_MEM_DRAW;
         saddr1 = H5MF_alloc(f, stype, (hsize_t)TBLOCK_SIZE30);
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
         if((saddr1+TBLOCK_SIZE30) != sdata_addr)
             TEST_ERROR
         if(sdata_size != (TBLOCK_SIZE2048 - TBLOCK_SIZE30)) TEST_ERROR
@@ -2493,7 +2493,7 @@ test_mf_aggr_alloc3(const char *env_h5_drvr, hid_t fapl)
         /* Allocate third block, which is from  file allocation not from meta_aggr */
         addr3 = H5MF_alloc(f, type, (hsize_t)(TBLOCK_SIZE2058));
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
 
         /* info for meta_aggr shouldn't be changed */
         if(addr3 != (sdata_addr+sdata_size)) TEST_ERROR
@@ -2502,7 +2502,7 @@ test_mf_aggr_alloc3(const char *env_h5_drvr, hid_t fapl)
 
         /* Allocate fourth block, which should be from meta_aggr */
         addr4 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE50);
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if((addr4+TBLOCK_SIZE50) != ma_addr)
             TEST_ERROR
@@ -2631,7 +2631,7 @@ test_mf_aggr_alloc4(const char *env_h5_drvr, hid_t fapl)
         type = H5FD_MEM_SUPER;
         addr1 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE30);
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if((addr1+TBLOCK_SIZE30) != ma_addr)
             TEST_ERROR
@@ -2641,19 +2641,19 @@ test_mf_aggr_alloc4(const char *env_h5_drvr, hid_t fapl)
         /* Allocate first block from sdata_aggr */
         stype = H5FD_MEM_DRAW;
         saddr1 = H5MF_alloc(f, stype, (hsize_t)TBLOCK_SIZE30);
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
         if((saddr1+TBLOCK_SIZE30) != sdata_addr)
             TEST_ERROR
 
         /* Allocate second block from sdata_aggr */
         saddr2 = H5MF_alloc(f, stype, (hsize_t)(TBLOCK_SIZE2048 - TBLOCK_SIZE30));
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
         if(saddr2+(TBLOCK_SIZE2048 - TBLOCK_SIZE30) != sdata_addr)
             TEST_ERROR
 
         /* Allocate third block from sdata_aggr */
         saddr3 = H5MF_alloc(f, stype, (hsize_t)TBLOCK_SIZE50);
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
 
         if((saddr3+TBLOCK_SIZE50) != sdata_addr)
             TEST_ERROR
@@ -2667,12 +2667,12 @@ test_mf_aggr_alloc4(const char *env_h5_drvr, hid_t fapl)
             TEST_ERROR
 
         /* sdata_aggr is reset 0 */
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
         if((sdata_addr != 0) && (sdata_size != 0))
             TEST_ERROR
 
         /* info is unchanged in meta_aggr */
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
         if((new_ma_addr != ma_addr) && (new_ma_size != ma_size))
             TEST_ERROR
 
@@ -2779,13 +2779,13 @@ test_mf_aggr_alloc5(const char *env_h5_drvr, hid_t fapl)
         type = H5FD_MEM_SUPER;
         addr1 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE30);
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
         if((addr1+TBLOCK_SIZE30) != ma_addr)
             TEST_ERROR
 
         /* Allocate second block from meta_aggr */
         addr2 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE50);
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if(addr2+TBLOCK_SIZE50 != ma_addr)
             TEST_ERROR
@@ -2794,7 +2794,7 @@ test_mf_aggr_alloc5(const char *env_h5_drvr, hid_t fapl)
 
         /* Allocate third block from meta_aggr */
         addr3 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE1970);
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
 
         if(addr3 != ma_addr) TEST_ERROR
         if((addr3+TBLOCK_SIZE1970) != new_ma_addr) TEST_ERROR
@@ -2914,13 +2914,13 @@ test_mf_aggr_alloc6(const char *env_h5_drvr, hid_t fapl)
         /* Allocate first block from meta_aggr */
         addr1 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE30);
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
         if((addr1+TBLOCK_SIZE30) != ma_addr)
             TEST_ERROR
 
         /* Allocate second block from meta_aggr */
         addr2 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE50);
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if(addr2+TBLOCK_SIZE50 != ma_addr)
             TEST_ERROR
@@ -2931,14 +2931,14 @@ test_mf_aggr_alloc6(const char *env_h5_drvr, hid_t fapl)
         stype = H5FD_MEM_DRAW;
         saddr1 = H5MF_alloc(f, stype, (hsize_t)TBLOCK_SIZE30);
 
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
         if((saddr1+TBLOCK_SIZE30) != sdata_addr) TEST_ERROR
         if(sdata_size != (TBLOCK_SIZE2048 - TBLOCK_SIZE30)) TEST_ERROR
 
         /* Allocate third block from meta_aggr */
         addr3 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE1970);
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
 
         if((addr3+TBLOCK_SIZE1970) != new_ma_addr) TEST_ERROR
         if(addr3 != (sdata_addr+sdata_size)) TEST_ERROR
@@ -3079,13 +3079,13 @@ test_mf_aggr_alloc7(const char *env_h5_drvr, hid_t fapl)
         /* Allocate the first block from meta_aggr */
         type = H5FD_MEM_SUPER;
         addr1 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE30);
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
         if ((addr1+TBLOCK_SIZE30) != ma_addr)
             TEST_ERROR
 
         /* Allocate the second block from meta_aggr */
         addr2 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE50);
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if (addr2+TBLOCK_SIZE50 != ma_addr)
             TEST_ERROR
@@ -3095,14 +3095,14 @@ test_mf_aggr_alloc7(const char *env_h5_drvr, hid_t fapl)
         /* Allocate the first block from sdata_aggr */
         stype = H5FD_MEM_DRAW;
         saddr1 = H5MF_alloc(f, stype, (hsize_t)TBLOCK_SIZE30);
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
         if ((saddr1+TBLOCK_SIZE30) != sdata_addr)
             TEST_ERROR
 
         /* Allocate the second block from sdata_aggr */
         saddr2 = H5MF_alloc(f, stype, (hsize_t)TBLOCK_SIZE2048 - TBLOCK_SIZE30);
 
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
         if ((saddr2+(TBLOCK_SIZE2048 - TBLOCK_SIZE30)) != sdata_addr)
             TEST_ERROR
         if (sdata_size != 0) TEST_ERROR
@@ -3110,7 +3110,7 @@ test_mf_aggr_alloc7(const char *env_h5_drvr, hid_t fapl)
         /* Allocate the third block from sdata_aggr */
         saddr3 = H5MF_alloc(f, stype, (hsize_t)TBLOCK_SIZE50);
 
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
         if ((saddr3+TBLOCK_SIZE50) != sdata_addr)
             TEST_ERROR
         if (sdata_size != (TBLOCK_SIZE2048 - TBLOCK_SIZE50))
@@ -3118,14 +3118,14 @@ test_mf_aggr_alloc7(const char *env_h5_drvr, hid_t fapl)
 
         /* Allocate the third block from meta_aggr */
         addr3 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE1970);
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if (addr3 != sdata_addr) TEST_ERROR
         if ((addr3 + TBLOCK_SIZE1970) != ma_addr) TEST_ERROR
         if (ma_size != (TBLOCK_SIZE2048 - TBLOCK_SIZE1970)) TEST_ERROR
 
         /* sdata_aggr info is reset to 0 */
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
         if (sdata_addr != HADDR_UNDEF) TEST_ERROR
         if (sdata_size != 0) TEST_ERROR
 
@@ -3242,7 +3242,7 @@ test_mf_aggr_extend(const char *env_h5_drvr, hid_t fapl)
         /* Allocate the first block from meta_aggr */
         type = H5FD_MEM_SUPER;
         addr = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE30);
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
         if((addr+TBLOCK_SIZE30) != ma_addr)
             TEST_ERROR
 
@@ -3259,7 +3259,7 @@ test_mf_aggr_extend(const char *env_h5_drvr, hid_t fapl)
         if(!was_extended)
             TEST_ERROR
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
 
         if(new_ma_addr != (addr+TBLOCK_SIZE50))
             TEST_ERROR
@@ -3275,7 +3275,7 @@ test_mf_aggr_extend(const char *env_h5_drvr, hid_t fapl)
         if(!was_extended)
             TEST_ERROR
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
 
         if(new_ma_addr != (addr + TBLOCK_SIZE700))
             TEST_ERROR
@@ -3291,7 +3291,7 @@ test_mf_aggr_extend(const char *env_h5_drvr, hid_t fapl)
         if(!was_extended)
             TEST_ERROR
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
 
         if (new_ma_addr != (addr + TBLOCK_SIZE2058))
             TEST_ERROR
@@ -3333,14 +3333,14 @@ test_mf_aggr_extend(const char *env_h5_drvr, hid_t fapl)
         /* Allocate the first block from meta_aggr */
         type = H5FD_MEM_SUPER;
         addr = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE30);
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
         if((addr+TBLOCK_SIZE30) != ma_addr)
             TEST_ERROR
 
         /* Allocate the first block from sdata_aggr */
         stype = H5FD_MEM_DRAW;
         saddr = H5MF_alloc(f, stype, (hsize_t)TBLOCK_SIZE50);
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
         if((saddr+TBLOCK_SIZE50) != sdata_addr)
             TEST_ERROR
 
@@ -3356,7 +3356,7 @@ test_mf_aggr_extend(const char *env_h5_drvr, hid_t fapl)
         if(!was_extended)
             TEST_ERROR
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
 
         if(new_ma_addr != (addr+TBLOCK_SIZE50))
             TEST_ERROR
@@ -3403,14 +3403,14 @@ test_mf_aggr_extend(const char *env_h5_drvr, hid_t fapl)
         /* Allocate first block from meta_aggr */
         type = H5FD_MEM_SUPER;
         addr = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE30);
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
         if ((addr+TBLOCK_SIZE30) != ma_addr)
             TEST_ERROR
 
         /* Allocate first block from sdata_aggr */
         stype = H5FD_MEM_DRAW;
         saddr = H5MF_alloc(f, stype, (hsize_t)TBLOCK_SIZE50);
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
         if((saddr+TBLOCK_SIZE50) != sdata_addr)
             TEST_ERROR
 
@@ -3426,7 +3426,7 @@ test_mf_aggr_extend(const char *env_h5_drvr, hid_t fapl)
         if(was_extended)
             TEST_ERROR
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
 
         if (new_ma_addr != addr) TEST_ERROR
         if (new_ma_size != 0) TEST_ERROR
@@ -3533,7 +3533,7 @@ test_mf_aggr_absorb(const char *env_h5_drvr, hid_t fapl)
         /* Allocate block A from meta_aggr */
         type = H5FD_MEM_SUPER;
         addr1 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE30);
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
         ma_addr = new_ma_addr - TBLOCK_SIZE30;
 
         if((addr1 + TBLOCK_SIZE30) != new_ma_addr)
@@ -3543,7 +3543,7 @@ test_mf_aggr_absorb(const char *env_h5_drvr, hid_t fapl)
         if(H5MF_try_shrink(f, type, addr1, (hsize_t)TBLOCK_SIZE30) <= 0)
             TEST_ERROR
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
 
         if(new_ma_addr != ma_addr) TEST_ERROR
 
@@ -3580,7 +3580,7 @@ test_mf_aggr_absorb(const char *env_h5_drvr, hid_t fapl)
         /* Allocate block A from meta_aggr */
         type = H5FD_MEM_SUPER;
         addr1 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE30);
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if((addr1+TBLOCK_SIZE30) != ma_addr) TEST_ERROR
         if(ma_size != (TBLOCK_SIZE2048 - TBLOCK_SIZE30)) TEST_ERROR
@@ -3589,18 +3589,18 @@ test_mf_aggr_absorb(const char *env_h5_drvr, hid_t fapl)
         stype = H5FD_MEM_DRAW;
         saddr1 = H5MF_alloc(f, stype, (hsize_t)TBLOCK_SIZE50);
 
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), NULL, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), NULL, &sdata_size);
 
         /* should succeed */
         if(H5MF_try_shrink(f, stype, saddr1, (hsize_t)TBLOCK_SIZE50) <= 0)
             TEST_ERROR
 
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &new_sdata_addr, &new_sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &new_sdata_addr, &new_sdata_size);
         if(new_sdata_addr != saddr1) TEST_ERROR
         if(new_sdata_size != sdata_size + TBLOCK_SIZE50) TEST_ERROR
 
         /* meta_aggr info should be updated because the block is absorbed into the meta_aggr */
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
         if (new_ma_addr != ma_addr) TEST_ERROR
         if (new_ma_size != (ma_size)) TEST_ERROR
 
@@ -3639,20 +3639,20 @@ test_mf_aggr_absorb(const char *env_h5_drvr, hid_t fapl)
         /* Allocate block A from meta_aggr */
         type = H5FD_MEM_SUPER;
         addr1 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE30);
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if((addr1+TBLOCK_SIZE30) != ma_addr)
             TEST_ERROR
 
         /* Allocate block B from meta_aggr */
         addr2 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE50);
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
         if((addr2+TBLOCK_SIZE50) != ma_addr)
             TEST_ERROR
 
         /* Allocate block C from meta_aggr */
         addr3 = H5MF_alloc(f, type, (hsize_t)(TBLOCK_SIZE30+TBLOCK_SIZE50));
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
         if((addr3+TBLOCK_SIZE30+TBLOCK_SIZE50) != ma_addr)
             TEST_ERROR
 
@@ -3661,7 +3661,7 @@ test_mf_aggr_absorb(const char *env_h5_drvr, hid_t fapl)
             TEST_ERROR
 
         /* aggregator info should be the same as before */
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
         if(new_ma_addr != ma_addr) TEST_ERROR
 
         H5MF_xfree(f, type, addr1, (hsize_t)TBLOCK_SIZE30);
@@ -3799,7 +3799,7 @@ test_mf_align_eoa(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
         if(addr1 % alignment) TEST_ERROR
 
         /* there should be nothing in the aggregator */
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
         if(ma_addr || ma_size) TEST_ERROR
 
         HDmemset(&state, 0, sizeof(H5FS_stat_t));
@@ -3823,7 +3823,7 @@ test_mf_align_eoa(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
         if (addr2 % alignment) TEST_ERROR
 
         /* there should be nothing in the aggregator */
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
         if(ma_addr || ma_size) TEST_ERROR
 
         if(mis_align) {
@@ -4054,7 +4054,7 @@ test_mf_align_fs(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
     TEST_ERROR
 
     /* Create section A */
-    sect_node = H5MF_sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)alignment, (hsize_t)TBLOCK_SIZE50);
+    sect_node = H5MF__sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)alignment, (hsize_t)TBLOCK_SIZE50);
 
     /* Add section A to free-space manager */
     if(H5MF__add_sect(f, H5FD_MEM_SUPER, f->shared->fs_man[H5FD_MEM_SUPER], sect_node))
@@ -4117,7 +4117,7 @@ test_mf_align_fs(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
         TEST_ERROR
 
     /* Create section A */
-    sect_node = H5MF_sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR70, (hsize_t)TBLOCK_SIZE8000);
+    sect_node = H5MF__sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR70, (hsize_t)TBLOCK_SIZE8000);
 
     /* Add section A to free-space manager */
     if(H5MF__add_sect(f, H5FD_MEM_SUPER, f->shared->fs_man[H5FD_MEM_SUPER], sect_node))
@@ -4200,7 +4200,7 @@ test_mf_align_fs(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             TEST_ERROR
 
         /* Create section A */
-        sect_node = H5MF_sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR70, (hsize_t)TBLOCK_SIZE700);
+        sect_node = H5MF__sect_new(H5MF_FSPACE_SECT_SIMPLE, (haddr_t)TBLOCK_ADDR70, (hsize_t)TBLOCK_SIZE700);
 
         /* Add section A to free-space manager */
         if(H5MF__add_sect(f, H5FD_MEM_SUPER, f->shared->fs_man[H5FD_MEM_SUPER], sect_node))
@@ -4429,7 +4429,7 @@ test_mf_align_alloc1(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state.serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if ((addr1 + TBLOCK_SIZE30) != ma_addr)
             TEST_ERROR
@@ -4452,7 +4452,7 @@ test_mf_align_alloc1(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state.serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if((addr2 + TBLOCK_SIZE50) != ma_addr)
             TEST_ERROR
@@ -4474,7 +4474,7 @@ test_mf_align_alloc1(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state.serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if((addr3 + TBLOCK_SIZE80) != ma_addr)
             TEST_ERROR
@@ -4497,7 +4497,7 @@ test_mf_align_alloc1(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state.serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if((addr4 + TBLOCK_SIZE1970) != ma_addr)
             TEST_ERROR
@@ -4685,7 +4685,7 @@ test_mf_align_alloc2(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state[type].serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if((addr1 + TBLOCK_SIZE30) != ma_addr)
             TEST_ERROR
@@ -4707,7 +4707,7 @@ test_mf_align_alloc2(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state[type].serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if((addr2 + TBLOCK_SIZE50) != ma_addr)
             TEST_ERROR
@@ -4743,8 +4743,8 @@ test_mf_align_alloc2(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
         /* Verify that the allocated block is aligned */
         if (saddr1 % alignment) TEST_ERROR
 
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if(sdata_addr != (saddr1 + TBLOCK_SIZE30)) TEST_ERROR
 
@@ -4776,7 +4776,7 @@ test_mf_align_alloc2(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state[type].serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if((addr3 + TBLOCK_SIZE80) != ma_addr)
             TEST_ERROR
@@ -5024,7 +5024,7 @@ test_mf_align_alloc3(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state[type].serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
         if ((addr1 + TBLOCK_SIZE30) != ma_addr)
             TEST_ERROR
 
@@ -5046,7 +5046,7 @@ test_mf_align_alloc3(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state[type].serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
         if((addr2 + TBLOCK_SIZE50) != ma_addr)
             TEST_ERROR
 
@@ -5081,7 +5081,7 @@ test_mf_align_alloc3(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state[stype].serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
         if(sdata_addr != (saddr1+TBLOCK_SIZE30)) TEST_ERROR
 
         /* calculate fragment for alignment of block 50 in sdata_aggr */
@@ -5102,7 +5102,7 @@ test_mf_align_alloc3(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state[stype].serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
         if(sdata_addr != (saddr2 + TBLOCK_SIZE50)) TEST_ERROR
 
         /* calculate fragment for alignment of block 80 in sdata_aggr */
@@ -5123,7 +5123,7 @@ test_mf_align_alloc3(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state[stype].serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
         if ((saddr3 + TBLOCK_SIZE80) != sdata_addr)
             TEST_ERROR
 
@@ -5157,7 +5157,7 @@ test_mf_align_alloc3(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state[type].serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if((addr3 + TBLOCK_SIZE1034) != ma_addr)
             TEST_ERROR
@@ -5329,7 +5329,7 @@ test_mf_align_alloc4(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state.serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
         saved_ma_size = ma_size;
         if((addr1+TBLOCK_SIZE30) != ma_addr) TEST_ERROR
 
@@ -5351,7 +5351,7 @@ test_mf_align_alloc4(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state.serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if((addr2 + TBLOCK_SIZE2058) != ma_addr) TEST_ERROR
 
@@ -5532,7 +5532,7 @@ test_mf_align_alloc5(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
         /* Verify that the allocated block is aligned */
         if(addr1 % alignment) TEST_ERROR
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
 
         if((addr1 + TBLOCK_SIZE30) != ma_addr) TEST_ERROR
 
@@ -5563,7 +5563,7 @@ test_mf_align_alloc5(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state[stype].serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
         if((saddr1+TBLOCK_SIZE30) != sdata_addr) TEST_ERROR
 
         /* calculate fragment for alignment of block 2058 from meta_aggr */
@@ -5596,12 +5596,12 @@ test_mf_align_alloc5(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
 	}
 
         /* nothing is changed in meta_aggr */
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
         if (new_ma_addr != ma_addr || new_ma_size != ma_size)
             TEST_ERROR
 
         /* nothing is changed in sdata_aggr */
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &new_sdata_addr, &new_sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &new_sdata_addr, &new_sdata_size);
         if (new_sdata_addr != sdata_addr || new_sdata_size != sdata_size)
             TEST_ERROR
 
@@ -5804,7 +5804,7 @@ test_mf_align_alloc6(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state[type].serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size);
         if ((addr1+TBLOCK_SIZE30) != ma_addr)
             TEST_ERROR
 
@@ -5827,7 +5827,7 @@ test_mf_align_alloc6(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state[stype].serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
         if (sdata_addr != (saddr1+TBLOCK_SIZE30)) TEST_ERROR
 
         /* calculate fragment for alignment of block 50 in sdata_aggr */
@@ -5848,7 +5848,7 @@ test_mf_align_alloc6(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state[stype].serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
         if (sdata_addr != (saddr2+TBLOCK_SIZE50)) TEST_ERROR
 
         /* calculate fragment for alignment of block 80 in sdata_aggr */
@@ -5869,7 +5869,7 @@ test_mf_align_alloc6(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state[stype].serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
         if (sdata_addr != (saddr3+TBLOCK_SIZE80)) TEST_ERROR
 
         /* calculate fragment for alignment of block 2058 */
@@ -5891,8 +5891,8 @@ test_mf_align_alloc6(const char *env_h5_drvr, hid_t fapl, hid_t new_fapl)
             state[type].serial_sect_count += 1;
         }
 
-        H5MF_aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
-        H5MF_aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
+        H5MF__aggr_query(f, &(f->shared->meta_aggr), &new_ma_addr, &new_ma_size);
+        H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sdata_addr, &sdata_size);
 
         if (new_ma_addr != ma_addr && new_ma_size != ma_size)
             TEST_ERROR
@@ -6815,7 +6815,7 @@ test_mf_fs_persist(const char *env_h5_drvr, hid_t fapl, hbool_t new_format)
         if(NULL == (f = (H5F_t *)H5I_object(file)))
             FAIL_STACK_ERROR
 
-        H5MF_alloc_to_fs_type(f, type, TBLOCK_SIZE6, (H5F_mem_page_t *)&tt);
+        H5MF__alloc_to_fs_type(f, type, TBLOCK_SIZE6, (H5F_mem_page_t *)&tt);
 
         /* Verify that H5FD_MEM_SUPER free-space manager is there */
         if(!H5F_addr_defined(f->shared->fs_addr[tt]))
@@ -6996,7 +6996,7 @@ test_mf_fs_gone(const char *env_h5_drvr, hid_t fapl, hbool_t new_format)
         if(NULL == (f = (H5F_t *)H5I_object(file)))
             FAIL_STACK_ERROR
 
-        H5MF_alloc_to_fs_type(f, type, TBLOCK_SIZE4, (H5F_mem_page_t *)&fs_type);
+        H5MF__alloc_to_fs_type(f, type, TBLOCK_SIZE4, (H5F_mem_page_t *)&fs_type);
 
         /* Verify that the H5FD_MEM_SUPER free-space manager is not there */
         if(H5F_addr_defined(f->shared->fs_addr[fs_type]))
@@ -7208,7 +7208,7 @@ test_mf_strat_thres_persist(const char *env_h5_drvr, hid_t fapl, hbool_t new_for
                 if(NULL == (f = (H5F_t *)H5I_object(file)))
                     FAIL_STACK_ERROR
 
-                H5MF_alloc_to_fs_type(f, type, TBLOCK_SIZE6, (H5F_mem_page_t *)&tt);
+                H5MF__alloc_to_fs_type(f, type, TBLOCK_SIZE6, (H5F_mem_page_t *)&tt);
 
                 /* Get a pointer to the internal file object */
                 if(NULL == (f = (H5F_t *)H5I_object(file)))
@@ -7359,7 +7359,7 @@ test_mf_strat_thres_gone(const char *env_h5_drvr, hid_t fapl, hbool_t new_format
             if(HADDR_UNDEF == (addr6 = H5MF_alloc(f, type, (hsize_t)TBLOCK_SIZE6)))
                 FAIL_STACK_ERROR
 
-            H5MF_alloc_to_fs_type(f, type, TBLOCK_SIZE6, (H5F_mem_page_t *)&tt);
+            H5MF__alloc_to_fs_type(f, type, TBLOCK_SIZE6, (H5F_mem_page_t *)&tt);
 
             /* For paged aggregation, the section in the page at EOF for small meta fs is not shrunk away */
             if(fs_type == H5F_FSPACE_STRATEGY_PAGE) {
@@ -7671,7 +7671,7 @@ test_page_alloc_xfree(const char *env_h5_drvr, hid_t fapl)
 
             if(!fs_persist) {
 
-                H5MF_alloc_to_fs_type(f, H5FD_MEM_OHDR, TBLOCK_SIZE1034, (H5F_mem_page_t *)&fs_type);
+                H5MF__alloc_to_fs_type(f, H5FD_MEM_OHDR, TBLOCK_SIZE1034, (H5F_mem_page_t *)&fs_type);
 
                 /* Verify that the freed block with addr2 is found from the small meta data manager */
                 if(H5MF__find_sect(f, H5FD_MEM_OHDR, (hsize_t)TBLOCK_SIZE1034, f->shared->fs_man[fs_type], &found_addr) < 0)
@@ -7704,7 +7704,7 @@ test_page_alloc_xfree(const char *env_h5_drvr, hid_t fapl)
 
             if(!fs_persist) {
 
-                H5MF_alloc_to_fs_type(f, H5FD_MEM_DRAW, TBLOCK_SIZE5000, (H5F_mem_page_t *)&fs_type);
+                H5MF__alloc_to_fs_type(f, H5FD_MEM_DRAW, TBLOCK_SIZE5000, (H5F_mem_page_t *)&fs_type);
 
                 /* Verify that the freed block with gaddr1 is found from the large data manager */
                 if(H5MF__find_sect(f, H5FD_MEM_DRAW, (hsize_t)TBLOCK_SIZE8192, f->shared->fs_man[fs_type], &found_addr) < 0)
@@ -7731,12 +7731,12 @@ test_page_alloc_xfree(const char *env_h5_drvr, hid_t fapl)
                     TEST_ERROR
 
                 /* Verify that the large generic manager is there */
-                H5MF_alloc_to_fs_type(f, H5FD_MEM_DRAW, TBLOCK_SIZE5000, (H5F_mem_page_t *)&fs_type);
+                H5MF__alloc_to_fs_type(f, H5FD_MEM_DRAW, TBLOCK_SIZE5000, (H5F_mem_page_t *)&fs_type);
                 if(!H5F_addr_defined(f->shared->fs_addr[fs_type]))
                     TEST_ERROR
 
                 /* Verify that the small meta data manager is there */
-                H5MF_alloc_to_fs_type(f, H5FD_MEM_OHDR, f->shared->fs_page_size - 1, (H5F_mem_page_t *)&fs_type);
+                H5MF__alloc_to_fs_type(f, H5FD_MEM_OHDR, f->shared->fs_page_size - 1, (H5F_mem_page_t *)&fs_type);
                 if(!H5F_addr_defined(f->shared->fs_addr[fs_type]))
                     TEST_ERROR
 
@@ -7777,7 +7777,7 @@ test_page_alloc_xfree(const char *env_h5_drvr, hid_t fapl)
                 if(found_addr != saddr1)
                     TEST_ERROR
 
-                H5MF_alloc_to_fs_type(f, H5FD_MEM_DRAW, TBLOCK_SIZE5000, (H5F_mem_page_t *)&fs_type);
+                H5MF__alloc_to_fs_type(f, H5FD_MEM_DRAW, TBLOCK_SIZE5000, (H5F_mem_page_t *)&fs_type);
 
                 if(!(f->shared->fs_man[fs_type]))
                     /* Set up to use the large data manager */
diff --git a/test/mount.c b/test/mount.c
index d2c0d21..c6230ee 100644
--- a/test/mount.c
+++ b/test/mount.c
@@ -412,7 +412,7 @@ test_hide(hid_t fapl)
         FAIL_STACK_ERROR
 
     /* Get information about file1:/mnt1/file1 for later */
-    if(H5Oget_info_by_name(file1, "/mnt1/file1", &oi1, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(file1, "/mnt1/file1", &oi1, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
 
     /* Build the virtual file */
     if(H5Fmount(file1, "/mnt1", file2, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
@@ -431,7 +431,7 @@ test_hide(hid_t fapl)
      * The original objects under file1:/mnt1 are still accessible by their
      * other names.  This is a rather stupid test but demonstrates a point.
      */
-    if(H5Oget_info_by_name(file1, "/file1", &oi2, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(file1, "/file1", &oi2, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
     if(oi1.fileno != oi2.fileno || H5F_addr_ne(oi1.addr, oi2.addr)) {
 	H5_FAILED();
 	puts("    Hard link failed for hidden object.");
@@ -490,7 +490,7 @@ test_assoc(hid_t fapl)
         FAIL_STACK_ERROR
 
     /* Get information about the root of file2 */
-    if(H5Oget_info(file2, &oi1) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info2(file2, &oi1, H5O_INFO_BASIC) < 0) FAIL_STACK_ERROR
 
     /* Create the virtual file */
     if(H5Fmount(file1, "/mnt1", file2, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
@@ -499,7 +499,7 @@ test_assoc(hid_t fapl)
      * Get info about the mount point -- should be the same as the root group
      * of file2.
      */
-    if(H5Oget_info_by_name(file1, "/mnt1", &oi2, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(file1, "/mnt1", &oi2, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
 
     if(oi1.fileno != oi2.fileno || H5F_addr_ne(oi1.addr, oi2.addr)) {
 	H5_FAILED();
@@ -688,7 +688,7 @@ test_preopen(hid_t fapl)
     if(H5Fmount(file1, "/mnt1", file2, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
 
     /* Now access the thing we previously opened */
-    if(H5Oget_info(grp, &oinfo) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info2(grp, &oinfo, H5O_INFO_BASIC) < 0) FAIL_STACK_ERROR
 
     /* Shut down */
     if(H5Funmount(file1, "/mnt1") < 0) FAIL_STACK_ERROR
@@ -752,10 +752,10 @@ test_postopen(hid_t fapl)
     if(H5Funmount(file1, "/mnt1") < 0) FAIL_STACK_ERROR
 
     /* Now access the thing we previously opened */
-    if(H5Oget_info(grp, &oinfo) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info2(grp, &oinfo, H5O_INFO_BASIC) < 0) FAIL_STACK_ERROR
 
     /* Try accessing it from the file */
-    if(H5Oget_info_by_name(file2, "/file2", &oinfo, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(file2, "/file2", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
 
     /* Shut down */
     if(H5Gclose(grp) < 0) FAIL_STACK_ERROR
@@ -825,12 +825,12 @@ test_unlink(hid_t fapl)
      * before the H5Fmount() and thus refers to the mount point itself rather
      * than the group mounted there.
      */
-    if(H5Oget_info_by_name(file1, "/mnt_unlink/file2", &oinfo, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
-    if(H5Oget_info_by_name(mnt, "/mnt_unlink/file2", &oinfo, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
-    if(H5Oget_info_by_name(root, "/mnt_unlink/file2", &oinfo, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
-    if(H5Oget_info_by_name(root, "file2", &oinfo, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(file1, "/mnt_unlink/file2", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(mnt, "/mnt_unlink/file2", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(root, "/mnt_unlink/file2", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(root, "file2", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
     H5E_BEGIN_TRY {
-	status = H5Oget_info_by_name(mnt, "file2", &oinfo, H5P_DEFAULT);
+	status = H5Oget_info_by_name2(mnt, "file2", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     } H5E_END_TRY;
     if(status >= 0) {
 	H5_FAILED();
@@ -845,9 +845,9 @@ test_unlink(hid_t fapl)
      * We should still be able to get to "/file2" of file2 by starting at
      * `root' which is still open, but not by name.
      */
-    if(H5Oget_info_by_name(root, "file2", &oinfo, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(root, "file2", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
     H5E_BEGIN_TRY {
-	status = H5Oget_info_by_name(mnt, "file2", &oinfo, H5P_DEFAULT);
+	status = H5Oget_info_by_name2(mnt, "file2", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     } H5E_END_TRY;
     if(status >= 0) {
 	H5_FAILED();
@@ -855,7 +855,7 @@ test_unlink(hid_t fapl)
 	TEST_ERROR
     } /* end if */
     H5E_BEGIN_TRY {
-	status = H5Oget_info_by_name(file2, "/mnt_unlink/file2", &oinfo, H5P_DEFAULT);
+	status = H5Oget_info_by_name2(file2, "/mnt_unlink/file2", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     } H5E_END_TRY;
     if(status >= 0) {
 	H5_FAILED();
@@ -943,7 +943,7 @@ test_mvmpt(hid_t fapl)
     if(H5Lmove(file1, "/mnt_move_a", H5L_SAME_LOC, "/mnt_move_b", H5P_DEFAULT, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
 
     /* Access something under the new name */
-    if(H5Oget_info_by_name(file1, "/mnt_move_b/file2", &oinfo, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(file1, "/mnt_move_b/file2", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
 
     /* Shut down */
     if(H5Funmount(file1, "/mnt_move_b") < 0) FAIL_STACK_ERROR
@@ -1102,18 +1102,18 @@ test_uniformity(hid_t fapl)
     if(H5Fmount(file1, "/mnt1", file2, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
 
     /* Access some things from the file1 handle */
-    if(H5Oget_info_by_name(file1, "/", &oinfo, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
-    if(H5Oget_info_by_name(file1, "/mnt1", &oinfo, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
-    if(H5Oget_info_by_name(file1, "mnt1", &oinfo, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
-    if(H5Oget_info_by_name(file1, "/mnt1/file2", &oinfo, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
-    if(H5Oget_info_by_name(file1, "mnt1/file2", &oinfo, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(file1, "/", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(file1, "/mnt1", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(file1, "mnt1", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(file1, "/mnt1/file2", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(file1, "mnt1/file2", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
 
     /* Access the same things from the file2 handle */
-    if(H5Oget_info_by_name(file2, "/", &oinfo, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
-    if(H5Oget_info_by_name(file2, "/mnt1", &oinfo, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
-    if(H5Oget_info_by_name(file2, "mnt1", &oinfo, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
-    if(H5Oget_info_by_name(file2, "/mnt1/file2", &oinfo, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
-    if(H5Oget_info_by_name(file2, "mnt1/file2", &oinfo, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(file2, "/", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(file2, "/mnt1", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(file2, "mnt1", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(file2, "/mnt1/file2", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(file2, "mnt1/file2", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
 
     /* Shut down */
     if(H5Funmount(file1, "/mnt1") < 0) FAIL_STACK_ERROR
@@ -1170,7 +1170,7 @@ test_close(hid_t fapl)
      * still accessible through the file2 handle.
      */
     if(H5Fclose(file1) < 0) FAIL_STACK_ERROR
-    if(H5Oget_info_by_name(file2, "/mnt1", &oinfo, H5P_DEFAULT) < 0) {
+    if(H5Oget_info_by_name2(file2, "/mnt1", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) {
 	H5_FAILED();
 	puts("    File1 contents are not accessible!");
 	TEST_ERROR
@@ -1191,7 +1191,7 @@ test_close(hid_t fapl)
      * Close file2.  It is not actually closed because it's a child of file1.
      */
     if(H5Fclose(file2) < 0) FAIL_STACK_ERROR
-    if(H5Oget_info_by_name(file1, "/mnt1/file2", &oinfo, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+    if(H5Oget_info_by_name2(file1, "/mnt1/file2", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
     if(H5Fclose(file1) < 0) FAIL_STACK_ERROR
 
     /* Check that all file IDs have been closed */
@@ -2495,9 +2495,9 @@ test_fcdegree_strong(hid_t fapl)
         TEST_ERROR
 
     /* Check that objects are still open */
-    if(H5Oget_info(gidA, &oinfo) < 0)
+    if(H5Oget_info2(gidA, &oinfo, H5O_INFO_BASIC) < 0)
         TEST_ERROR
-    if(H5Oget_info(gidAM, &oinfo) < 0)
+    if(H5Oget_info2(gidAM, &oinfo, H5O_INFO_BASIC) < 0)
         TEST_ERROR
 
     /* Close file #2 (should close open objects also) */
@@ -2506,12 +2506,12 @@ test_fcdegree_strong(hid_t fapl)
 
     /* Check that objects are closed */
     H5E_BEGIN_TRY {
-        ret = H5Oget_info(gidA, &oinfo);
+        ret = H5Oget_info2(gidA, &oinfo, H5O_INFO_BASIC);
     } H5E_END_TRY;
     if(ret >= 0)
         TEST_ERROR
     H5E_BEGIN_TRY {
-        ret = H5Oget_info(gidAM, &oinfo);
+        ret = H5Oget_info2(gidAM, &oinfo, H5O_INFO_BASIC);
     } H5E_END_TRY;
     if(ret >= 0)
         TEST_ERROR
diff --git a/test/mtime.c b/test/mtime.c
index 38e3960..2cd2d31 100644
--- a/test/mtime.c
+++ b/test/mtime.c
@@ -90,9 +90,9 @@ main(void)
      */
     h5_fixname(FILENAME[0], fapl, filename, sizeof filename);
     if((file = H5Fopen(filename, H5F_ACC_RDONLY, fapl)) < 0) TEST_ERROR;
-    if(H5Oget_info_by_name(file, "dset", &oi1, H5P_DEFAULT) < 0) TEST_ERROR;
+    if(H5Oget_info_by_name2(file, "dset", &oi1, H5O_INFO_BASIC|H5O_INFO_TIME, H5P_DEFAULT) < 0) TEST_ERROR;
     if((dset = H5Dopen2(file, "dset", H5P_DEFAULT)) < 0) TEST_ERROR;
-    if(H5Oget_info(dset, &oi2) < 0) TEST_ERROR;
+    if(H5Oget_info2(dset, &oi2, H5O_INFO_BASIC|H5O_INFO_TIME) < 0) TEST_ERROR;
     if(H5Dclose(dset) < 0) TEST_ERROR;
     if(H5Fclose(file) < 0) TEST_ERROR;
 
@@ -134,7 +134,7 @@ main(void)
 
         file = H5Fopen(testfile, H5F_ACC_RDONLY, H5P_DEFAULT);
         if(file >= 0){
-            if(H5Oget_info_by_name(file, "/Dataset1", &oi1, H5P_DEFAULT) < 0)
+            if(H5Oget_info_by_name2(file, "/Dataset1", &oi1, H5O_INFO_TIME, H5P_DEFAULT) < 0)
                 TEST_ERROR;
             if(oi1.ctime != MTIME1) {
                 H5_FAILED();
@@ -164,7 +164,7 @@ main(void)
 
         file = H5Fopen(testfile, H5F_ACC_RDONLY, H5P_DEFAULT);
         if(file >= 0){
-            if(H5Oget_info_by_name(file, "/Dataset1", &oi2, H5P_DEFAULT) < 0)
+            if(H5Oget_info_by_name2(file, "/Dataset1", &oi2, H5O_INFO_TIME, H5P_DEFAULT) < 0)
                 TEST_ERROR;
             if(oi2.ctime != MTIME2) {
                H5_FAILED();
diff --git a/test/objcopy.c b/test/objcopy.c
index 3fbb7b8..18de027 100644
--- a/test/objcopy.c
+++ b/test/objcopy.c
@@ -877,10 +877,10 @@ compare_std_attributes(hid_t oid, hid_t oid2, hid_t pid)
         cpy_flags = 0;
 
     /* Check the number of attributes on source dataset */
-    if(H5Oget_info(oid, &oinfo1) < 0) TEST_ERROR
+    if(H5Oget_info2(oid, &oinfo1, H5O_INFO_NUM_ATTRS) < 0) TEST_ERROR
 
     /* Check the number of attributes on destination dataset */
-    if(H5Oget_info(oid2, &oinfo2) < 0) TEST_ERROR
+    if(H5Oget_info2(oid2, &oinfo2, H5O_INFO_NUM_ATTRS) < 0) TEST_ERROR
 
     if(cpy_flags & H5O_COPY_WITHOUT_ATTR_FLAG) {
         /* Check that the destination has no attributes */
@@ -1071,8 +1071,8 @@ compare_data(hid_t parent1, hid_t parent2, hid_t pid, hid_t tid, size_t nelmts,
                 if(obj_owner > 0) {
                     H5O_info_t oinfo1, oinfo2;
 
-                    if(H5Oget_info(obj_owner, &oinfo1) < 0) TEST_ERROR
-                    if(H5Oget_info(obj1_id, &oinfo2) < 0) TEST_ERROR
+                    if(H5Oget_info2(obj_owner, &oinfo1, H5O_INFO_BASIC) < 0) TEST_ERROR
+                    if(H5Oget_info2(obj1_id, &oinfo2, H5O_INFO_BASIC) < 0) TEST_ERROR
                     if(H5F_addr_eq(oinfo1.addr, oinfo2.addr)) {
                         if(H5Oclose(obj1_id) < 0) TEST_ERROR
                         if(H5Oclose(obj2_id) < 0) TEST_ERROR
@@ -1129,8 +1129,8 @@ compare_data(hid_t parent1, hid_t parent2, hid_t pid, hid_t tid, size_t nelmts,
                 if(obj_owner > 0) {
                     H5O_info_t oinfo1, oinfo2;
 
-                    if(H5Oget_info(obj_owner, &oinfo1) < 0) TEST_ERROR
-                    if(H5Oget_info(obj1_id, &oinfo2) < 0) TEST_ERROR
+                    if(H5Oget_info2(obj_owner, &oinfo1, H5O_INFO_BASIC) < 0) TEST_ERROR
+                    if(H5Oget_info2(obj1_id, &oinfo2, H5O_INFO_BASIC) < 0) TEST_ERROR
                     if(H5F_addr_eq(oinfo1.addr, oinfo2.addr)) {
                         if(H5Oclose(obj1_id) < 0) TEST_ERROR
                         if(H5Oclose(obj2_id) < 0) TEST_ERROR
@@ -1423,8 +1423,8 @@ compare_groups(hid_t gid, hid_t gid2, hid_t pid, int depth, unsigned copy_flags)
                 H5O_info_t oinfo, oinfo2;       /* Object info */
 
                 /* Compare some pieces of the object info */
-                if(H5Oget_info_by_name(gid, objname, &oinfo, H5P_DEFAULT) < 0) TEST_ERROR
-                if(H5Oget_info_by_name(gid2, objname2, &oinfo2, H5P_DEFAULT) < 0) TEST_ERROR
+                if(H5Oget_info_by_name2(gid, objname, &oinfo, H5O_INFO_BASIC|H5O_INFO_HDR, H5P_DEFAULT) < 0) TEST_ERROR
+                if(H5Oget_info_by_name2(gid2, objname2, &oinfo2, H5O_INFO_BASIC|H5O_INFO_HDR, H5P_DEFAULT) < 0) TEST_ERROR
 
                 if(oinfo.type != oinfo2.type) TEST_ERROR
                 if(oinfo.rc != oinfo2.rc) TEST_ERROR
@@ -1949,8 +1949,8 @@ test_copy_named_datatype_attr_self(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fap
     if(H5Tcommitted(tid) != TRUE) TEST_ERROR
 
     /* verify that the addresses of the datatypes are the same */
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
-    if(H5Oget_info(tid2, &oinfo2) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
+    if(H5Oget_info2(tid2, &oinfo2, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.fileno != oinfo2.fileno || oinfo.addr != oinfo2.addr)
         FAIL_PUTS_ERROR("destination attribute does not use the same committed datatype")
 
@@ -10331,28 +10331,28 @@ test_copy_committed_datatype_merge(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fap
 
     /* Open SRC1 committed dtype, get address */
     if((tid = H5Topen2(fid_dst, NAME_GROUP_TOP "/" NAME_DATATYPE_SIMPLE, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* Open SRC1 dset dtype, check address */
     if((did = H5Dopen2(fid_dst, NAME_GROUP_TOP "/" NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
 
     /* Open SRC2 committed dtype, check address */
     if((tid = H5Topen2(fid_dst, NAME_GROUP_TOP2 "/" NAME_DATATYPE_SIMPLE, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* Open SRC2 dset dtype, check address */
     if((did = H5Dopen2(fid_dst, NAME_GROUP_TOP2 "/" NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -10385,7 +10385,7 @@ test_copy_committed_datatype_merge(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fap
     /* Open SRC1 dset dtype, get address */
     if((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -10393,7 +10393,7 @@ test_copy_committed_datatype_merge(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fap
     /* Open SRC2 dset dtype, check address */
     if((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE2, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -10565,28 +10565,28 @@ test_copy_committed_datatype_merge_same_file(hid_t fcpl, hid_t fapl, hbool_t reo
 
     /* Open group 1 source committed dtype, get address */
     if((tid = H5Topen2(fid, NAME_GROUP_TOP "/" NAME_DATATYPE_SIMPLE, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* Open group 1 source dset dtype, check address */
     if((did = H5Dopen2(fid, NAME_GROUP_TOP "/" NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
 
     /* Open group 1 committed dtype, check address */
     if((tid = H5Topen2(fid, NAME_GROUP_TOP3 "/" NAME_GROUP_TOP "/" NAME_DATATYPE_SIMPLE, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* Open group 1 dset dtype, check address */
     if((did = H5Dopen2(fid, NAME_GROUP_TOP3 "/" NAME_GROUP_TOP "/" NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -10594,7 +10594,7 @@ test_copy_committed_datatype_merge_same_file(hid_t fcpl, hid_t fapl, hbool_t reo
     /* Open group 2 source committed dtype, get address and make sure it is
      * different from group 1 source committed dtype */
     if((tid = H5Topen2(fid, NAME_GROUP_TOP2 "/" NAME_DATATYPE_SIMPLE, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr == exp_addr) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
@@ -10602,21 +10602,21 @@ test_copy_committed_datatype_merge_same_file(hid_t fcpl, hid_t fapl, hbool_t reo
     /* Open group 2 source dset dtype, check address */
     if((did = H5Dopen2(fid, NAME_GROUP_TOP2 "/" NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
 
     /* Open group 2 committed dtype, check address */
     if((tid = H5Topen2(fid, NAME_GROUP_TOP3 "/" NAME_GROUP_TOP2 "/" NAME_DATATYPE_SIMPLE, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* Open group 2 dset dtype, check address */
     if((did = H5Dopen2(fid, NAME_GROUP_TOP3 "/" NAME_GROUP_TOP2 "/" NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -10644,7 +10644,7 @@ test_copy_committed_datatype_merge_same_file(hid_t fcpl, hid_t fapl, hbool_t reo
     /* Open group 1 source dset dtype, get address */
     if((did = H5Dopen2(fid, NAME_GROUP_TOP "/" NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -10652,7 +10652,7 @@ test_copy_committed_datatype_merge_same_file(hid_t fcpl, hid_t fapl, hbool_t reo
     /* Open group 1 dset dtype, check address */
     if((did = H5Dopen2(fid, NAME_GROUP_TOP4 "/" NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -10661,7 +10661,7 @@ test_copy_committed_datatype_merge_same_file(hid_t fcpl, hid_t fapl, hbool_t reo
      * different from group 1 source dset dtype */
     if((did = H5Dopen2(fid, NAME_GROUP_TOP2 "/" NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr == exp_addr) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
@@ -10670,7 +10670,7 @@ test_copy_committed_datatype_merge_same_file(hid_t fcpl, hid_t fapl, hbool_t reo
     /* Open group 2 dset dtype, check address */
     if((did = H5Dopen2(fid, NAME_GROUP_TOP4 "/" NAME_DATASET_SIMPLE2, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -10837,14 +10837,14 @@ test_copy_committed_dt_merge_sugg(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl
 
     /* Open committed dtype "b", get address */
     if((tid = H5Topen2(fid_dst, "/b", H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* Open dset dtype, check address */
     if((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -10875,28 +10875,28 @@ test_copy_committed_dt_merge_sugg(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl
 
     /* Open committed dtype "a", get address */
     if((tid = H5Topen2(fid_dst, "/a", H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* Open dset 2 dtype, check address */
     if((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE2, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
 
     /* Open committed dtype "b", get address */
     if((tid = H5Topen2(fid_dst, "/b", H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* Open dset dtype, check address */
     if((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -11072,7 +11072,7 @@ test_copy_committed_dt_merge_attr(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl
     /* Open attribute dtype, get address */
     if((aid = H5Aopen_by_name(fid_dst, NAME_GROUP_TOP, "attr", H5P_DEFAULT, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Aget_type(aid)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Aclose(aid) < 0) TEST_ERROR
@@ -11080,7 +11080,7 @@ test_copy_committed_dt_merge_attr(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl
     /* Open dset dtype, check address */
     if((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -11331,13 +11331,13 @@ test_copy_cdt_hier_merge(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t d
 
     /* get address of committed datatype at root group */
     if((tid = H5Topen2(fid_dst, SRC_ROOT_GROUP "/" ROOT_NDT_INT, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr_int = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* get address of committed datatype at /g0 */
     if((tid = H5Topen2(fid_dst, SRC_ROOT_GROUP NAME_GROUP_TOP "/" GROUP_NDT_SHORT, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr_short = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
@@ -11351,7 +11351,7 @@ test_copy_cdt_hier_merge(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t d
     /* check address of datatype for second dataset */
     if((did = H5Dopen2(fid_dst, SRC_ROOT_GROUP NAME_GROUP_TOP "/" SRC_NDT_DSET2, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr_short) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -11359,7 +11359,7 @@ test_copy_cdt_hier_merge(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t d
     /* check address of datatype for third dataset */
     if((did = H5Dopen2(fid_dst, SRC_ROOT_GROUP NAME_GROUP_TOP "/" SRC_NDT_DSET3, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr_int) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -11371,7 +11371,7 @@ test_copy_cdt_hier_merge(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t d
 
     /* get address of committed datatype at /g0 */
     if((tid = H5Topen2(fid_dst, NAME_GROUP_TOP "/" GROUP_NDT_SHORT, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr_short) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
 
@@ -11385,7 +11385,7 @@ test_copy_cdt_hier_merge(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t d
     /* check address of datatype for second dataset */
     if((did = H5Dopen2(fid_dst, NAME_GROUP_TOP "/" SRC_NDT_DSET2, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr_short) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -11393,7 +11393,7 @@ test_copy_cdt_hier_merge(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t d
     /* check address of datatype for third dataset */
     if((did = H5Dopen2(fid_dst, NAME_GROUP_TOP "/" SRC_NDT_DSET3, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr_int) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -11408,7 +11408,7 @@ test_copy_cdt_hier_merge(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t d
     /* Open attribute with anon ndt (short), get address */
     if((aid = H5Aopen_by_name(fid_dst, NAME_GROUP_UNCOPIED, DST_ATTR_ANON_SHORT, H5P_DEFAULT, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Aget_type(aid)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr_short) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Aclose(aid) < 0) TEST_ERROR
@@ -11416,7 +11416,7 @@ test_copy_cdt_hier_merge(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t d
     /* Open attribute with anon ndt (int), get address */
     if((aid = H5Aopen_by_name(fid_dst, NAME_GROUP_UNCOPIED, DST_ATTR_ANON_INT, H5P_DEFAULT, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Aget_type(aid)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr_int) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Aclose(aid) < 0) TEST_ERROR
@@ -11431,7 +11431,7 @@ test_copy_cdt_hier_merge(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t d
     /* check address of datatype for second dataset */
     if((did = H5Dopen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_DSET2, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr_short) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -11439,7 +11439,7 @@ test_copy_cdt_hier_merge(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t d
     /* check address of datatype for third dataset */
     if((did = H5Dopen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_DSET3, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr_int) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -11642,50 +11642,50 @@ test_copy_cdt_merge_cdt(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t ds
      */
     /* get address of committed datatype: /src_root/src_ndt_double */
     if((tid = H5Topen2(fid_dst, "/" SRC_ROOT_GROUP "/" SRC_NDT_DOUBLE, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* get address of committed datatype: /dst_ndt_double */
     if((tid = H5Topen2(fid_dst, "/" DST_NDT_DOUBLE, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* get address of committed datatype: /src_root/src_ndt_float */
     if((tid = H5Topen2(fid_dst, "/" SRC_ROOT_GROUP "/" SRC_NDT_FLOAT, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* get address of committed datatype: /dst_ndt_float */
     if((tid = H5Topen2(fid_dst, "/" DST_NDT_FLOAT, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* get address of committed datatype: /src_root/src_ndt_int */
     if((tid = H5Topen2(fid_dst, "/" SRC_ROOT_GROUP "/" SRC_NDT_INT, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* get address of committed datatype: /dst_ndt_int */
     if((tid = H5Topen2(fid_dst, "/" DST_NDT_INT, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* get address of committed datatype: /src_root/src_ndt_short */
     if((tid = H5Topen2(fid_dst, "/" SRC_ROOT_GROUP "/" SRC_NDT_SHORT, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* open attribute; get its dtype; get dtype's address: /src_root/src_ndt_double/dst_attr */
     if((aid = H5Aopen_by_name(fid_dst, "/" SRC_ROOT_GROUP "/" SRC_NDT_DOUBLE, DST_ATTR, H5P_DEFAULT, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Aget_type(aid)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Aclose(aid) < 0) TEST_ERROR
@@ -11816,13 +11816,13 @@ test_copy_cdt_merge_suggs(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl,
 
     /* open committed dtype "/dst_ndt_int", get its address */
     if((tid = H5Topen2(fid_dst, DST_NDT_INT, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* check address of "/uncopied/src_ndt_int" */
     if((tid = H5Topen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_INT, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
 
@@ -11849,13 +11849,13 @@ test_copy_cdt_merge_suggs(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl,
 
     /* open committed dtype "/uncopied/src_ndt_int", get its address */
     if((tid = H5Topen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_INT, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* check address of "/src_ndt_int" */
     if((tid = H5Topen2(fid_dst, SRC_NDT_INT, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
 
@@ -11887,13 +11887,13 @@ test_copy_cdt_merge_suggs(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl,
 
     /* Open committed dtype "/uncopied/src_ndt_int", get its address */
     if((tid = H5Topen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_INT, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* check address of "/src_ndt_int2" */
     if((tid = H5Topen2(fid_dst, SRC_NDT_INT2, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
 
@@ -11921,13 +11921,13 @@ test_copy_cdt_merge_suggs(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl,
 
     /* Open committed dtype "/dst_dt_int", get its address */
     if((tid = H5Topen2(fid_dst, DST_NDT_INT, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* check address of "/uncopied/src_ndt_int2" */
     if((tid = H5Topen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_INT2, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
 
@@ -12077,14 +12077,14 @@ test_copy_cdt_merge_dset_suggs(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl,
 
     /* Open committed dtype "/dst_ndt_int", get its address */
     if((tid = H5Topen2(fid_dst, DST_NDT_INT, H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* check address of datatype for the copied dataset: "/uncopied/src_ndt_dset"  */
     if((did = H5Dopen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_DSET, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -12113,7 +12113,7 @@ test_copy_cdt_merge_dset_suggs(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl,
     /* Open committed dtype dataset "/uncopied/src_ndt_dset", get its datatype address */
     if((did = H5Dopen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_DSET, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -12121,7 +12121,7 @@ test_copy_cdt_merge_dset_suggs(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl,
     /* check address of datatype for the copied dataset: "/src_ndt_dset" */
     if((did = H5Dopen2(fid_dst, SRC_NDT_DSET, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -12155,7 +12155,7 @@ test_copy_cdt_merge_dset_suggs(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl,
     /* open the copied dataset: /uncopied/src_ndt_dset", get its address  */
     if((did = H5Dopen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_DSET, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -12163,7 +12163,7 @@ test_copy_cdt_merge_dset_suggs(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl,
     /* check address of datatype for the copied dataset: "/src_ndt_dset2" */
     if((did = H5Dopen2(fid_dst, SRC_NDT_DSET2, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -12193,7 +12193,7 @@ test_copy_cdt_merge_dset_suggs(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl,
     /* open the copied dataset: "/src_ndt_dset", get its datatype address */
     if((did = H5Dopen2(fid_dst, SRC_NDT_DSET, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -12201,7 +12201,7 @@ test_copy_cdt_merge_dset_suggs(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl,
     /* check address of datatype for the copied dataset: /uncopied/src_ndt_dset2 */
     if((did = H5Dopen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_DSET2, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -12861,14 +12861,14 @@ test_copy_set_mcdt_search_cb(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl,
 
     /* Open committed dtype "b", get address */
     if((tid = H5Topen2(fid_dst, "/b", H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* Open dset dtype, check address */
     if((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -12909,14 +12909,14 @@ test_copy_set_mcdt_search_cb(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl,
 
     /* Open committed dtype "a", get address */
     if((tid = H5Topen2(fid_dst, "/a", H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* Open copied dataset and its dtype, check address */
     if((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE2, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr != exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -12948,28 +12948,28 @@ test_copy_set_mcdt_search_cb(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl,
 
     /* Open committed dtype "a", get address */
     if((tid = H5Topen2(fid_dst, "/a", H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* Open the copied dataset and get its dtype, addresses should not be equal */
     if((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE3, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr == exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
 
     /* Open committed dtype "b", get address */
     if((tid = H5Topen2(fid_dst, "/b", H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* Open the copied dataset and get its dtype, addresses should not be equal */
     if((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE3, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr == exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
@@ -13008,28 +13008,28 @@ test_copy_set_mcdt_search_cb(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl,
 
     /* Open committed dtype "a", get address */
     if((tid = H5Topen2(fid_dst, "/a", H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* Open the copied dataset and get its dtype, addresses should not be equal */
     if((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE3, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr == exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
 
     /* Open committed dtype "b", get address */
     if((tid = H5Topen2(fid_dst, "/b", H5P_DEFAULT)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     exp_addr = oinfo.addr;
     if(H5Tclose(tid) < 0) TEST_ERROR
 
     /* Open the copied dataset and get its dtype, addresses should not be equal */
     if((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE3, H5P_DEFAULT)) < 0) TEST_ERROR
     if((tid = H5Dget_type(did)) < 0) TEST_ERROR
-    if(H5Oget_info(tid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC) < 0) TEST_ERROR
     if(oinfo.addr == exp_addr) TEST_ERROR
     if(H5Tclose(tid) < 0) TEST_ERROR
     if(H5Dclose(did) < 0) TEST_ERROR
diff --git a/test/ohdr.c b/test/ohdr.c
index e91c6a8..146245f 100644
--- a/test/ohdr.c
+++ b/test/ohdr.c
@@ -383,7 +383,7 @@ test_ohdr_swmr(hbool_t new_format)
         FAIL_STACK_ERROR
 
     /* Get the object information */
-    if(H5Oget_info(did, &obj_info) < 0)
+    if(H5Oget_info2(did, &obj_info, H5O_INFO_HDR) < 0)
         FAIL_STACK_ERROR
 
     if(new_format)
diff --git a/test/stab.c b/test/stab.c
index 331c68d..37097b7 100644
--- a/test/stab.c
+++ b/test/stab.c
@@ -419,7 +419,7 @@ lifecycle(hid_t fcpl, hid_t fapl2)
     if(H5G__is_new_dense_test(gid) != FALSE) TEST_ERROR
 
     /* Check that the object header is only one chunk and the space has been allocated correctly */
-    if(H5Oget_info(gid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(gid, &oinfo, H5O_INFO_HDR) < 0) TEST_ERROR
     if(oinfo.hdr.space.total != 151) TEST_ERROR
     if(oinfo.hdr.space.free != 0) TEST_ERROR
     if(oinfo.hdr.nmesgs != 6) TEST_ERROR
@@ -441,7 +441,7 @@ lifecycle(hid_t fcpl, hid_t fapl2)
     if(H5G__is_new_dense_test(gid) != TRUE) TEST_ERROR
 
     /* Check that the object header is still one chunk and the space has been allocated correctly */
-    if(H5Oget_info(gid, &oinfo) < 0) TEST_ERROR
+    if(H5Oget_info2(gid, &oinfo, H5O_INFO_HDR) < 0) TEST_ERROR
     if(oinfo.hdr.space.total != 151) TEST_ERROR
     if(oinfo.hdr.space.free != 92) TEST_ERROR
     if(oinfo.hdr.nmesgs != 3) TEST_ERROR
diff --git a/test/tattr.c b/test/tattr.c
index b5495de..bf9ce96 100644
--- a/test/tattr.c
+++ b/test/tattr.c
@@ -422,7 +422,7 @@ test_attr_basic_read(hid_t fapl)
     CHECK(dataset, FAIL, "H5Dopen2");
 
     /* Verify the correct number of attributes */
-    ret = H5Oget_info(dataset, &oinfo);
+    ret = H5Oget_info2(dataset, &oinfo, H5O_INFO_NUM_ATTRS);
     CHECK(ret, FAIL, "H5Oget_info");
     VERIFY(oinfo.num_attrs, 2, "H5Oget_info");
 
@@ -451,7 +451,7 @@ test_attr_basic_read(hid_t fapl)
     CHECK(group, FAIL, "H5Gopen2");
 
     /* Verify the correct number of attributes */
-    ret = H5Oget_info(group, &oinfo);
+    ret = H5Oget_info2(group, &oinfo, H5O_INFO_NUM_ATTRS);
     CHECK(ret, FAIL, "H5Oget_info");
     VERIFY(oinfo.num_attrs, 1, "H5Oget_info");
 
@@ -793,7 +793,7 @@ test_attr_compound_read(hid_t fapl)
     CHECK(dataset, FAIL, "H5Dopen2");
 
     /* Verify the correct number of attributes */
-    ret = H5Oget_info(dataset, &oinfo);
+    ret = H5Oget_info2(dataset, &oinfo, H5O_INFO_NUM_ATTRS);
     CHECK(ret, FAIL, "H5Oget_info");
     VERIFY(oinfo.num_attrs, 1, "H5Oget_info");
 
@@ -997,7 +997,7 @@ test_attr_scalar_read(hid_t fapl)
     CHECK(dataset, FAIL, "H5Dopen2");
 
     /* Verify the correct number of attributes */
-    ret = H5Oget_info(dataset, &oinfo);
+    ret = H5Oget_info2(dataset, &oinfo, H5O_INFO_NUM_ATTRS);
     CHECK(ret, FAIL, "H5Oget_info");
     VERIFY(oinfo.num_attrs, 1, "H5Oget_info");
 
@@ -1200,7 +1200,7 @@ test_attr_mult_read(hid_t fapl)
     CHECK(dataset, FAIL, "H5Dopen2");
 
     /* Verify the correct number of attributes */
-    ret = H5Oget_info(dataset, &oinfo);
+    ret = H5Oget_info2(dataset, &oinfo, H5O_INFO_NUM_ATTRS);
     CHECK(ret, FAIL, "H5Oget_info");
     VERIFY(oinfo.num_attrs, 3, "H5Oget_info");
 
@@ -1457,7 +1457,7 @@ test_attr_iterate(hid_t fapl)
     CHECK(ret, FAIL, "H5Sclose");
 
     /* Verify the correct number of attributes */
-    ret = H5Oget_info(dataset, &oinfo);
+    ret = H5Oget_info2(dataset, &oinfo, H5O_INFO_NUM_ATTRS);
     CHECK(ret, FAIL, "H5Oget_info");
     VERIFY(oinfo.num_attrs, 0, "H5Oget_info");
 
@@ -1475,7 +1475,7 @@ test_attr_iterate(hid_t fapl)
     CHECK(dataset, FAIL, "H5Dopen2");
 
     /* Verify the correct number of attributes */
-    ret = H5Oget_info(dataset, &oinfo);
+    ret = H5Oget_info2(dataset, &oinfo, H5O_INFO_NUM_ATTRS);
     CHECK(ret, FAIL, "H5Oget_info");
     VERIFY(oinfo.num_attrs, 3, "H5Oget_info");
 
@@ -1522,7 +1522,7 @@ test_attr_delete(hid_t fapl)
     CHECK(dataset, FAIL, "H5Dopen2");
 
     /* Verify the correct number of attributes */
-    ret = H5Oget_info(dataset, &oinfo);
+    ret = H5Oget_info2(dataset, &oinfo, H5O_INFO_NUM_ATTRS);
     CHECK(ret, FAIL, "H5Oget_info");
     VERIFY(oinfo.num_attrs, 3, "H5Oget_info");
 
@@ -1531,7 +1531,7 @@ test_attr_delete(hid_t fapl)
     VERIFY(ret, FAIL, "H5Adelete");
 
     /* Verify the correct number of attributes */
-    ret = H5Oget_info(dataset, &oinfo);
+    ret = H5Oget_info2(dataset, &oinfo, H5O_INFO_NUM_ATTRS);
     CHECK(ret, FAIL, "H5Oget_info");
     VERIFY(oinfo.num_attrs, 3, "H5Oget_info");
 
@@ -1540,7 +1540,7 @@ test_attr_delete(hid_t fapl)
     CHECK(ret, FAIL, "H5Adelete");
 
     /* Verify the correct number of attributes */
-    ret = H5Oget_info(dataset, &oinfo);
+    ret = H5Oget_info2(dataset, &oinfo, H5O_INFO_NUM_ATTRS);
     CHECK(ret, FAIL, "H5Oget_info");
     VERIFY(oinfo.num_attrs, 2, "H5Oget_info");
 
@@ -1577,7 +1577,7 @@ test_attr_delete(hid_t fapl)
     CHECK(ret, FAIL, "H5Adelete");
 
     /* Verify the correct number of attributes */
-    ret = H5Oget_info(dataset, &oinfo);
+    ret = H5Oget_info2(dataset, &oinfo, H5O_INFO_NUM_ATTRS);
     CHECK(ret, FAIL, "H5Oget_info");
     VERIFY(oinfo.num_attrs, 1, "H5Oget_info");
 
@@ -1600,7 +1600,7 @@ test_attr_delete(hid_t fapl)
     CHECK(ret, FAIL, "H5Adelete");
 
     /* Verify the correct number of attributes */
-    ret = H5Oget_info(dataset, &oinfo);
+    ret = H5Oget_info2(dataset, &oinfo, H5O_INFO_NUM_ATTRS);
     CHECK(ret, FAIL, "H5Oget_info");
     VERIFY(oinfo.num_attrs, 0, "H5Oget_info");
 
@@ -1665,7 +1665,7 @@ test_attr_dtype_shared(hid_t fapl)
     CHECK(ret, FAIL, "H5Tcommit2");
 
     /* Check reference count on named datatype */
-    ret = H5Oget_info_by_name(file_id, TYPE1_NAME, &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(file_id, TYPE1_NAME, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 1, "H5Oget_info_by_name");
 
@@ -1678,7 +1678,7 @@ test_attr_dtype_shared(hid_t fapl)
     CHECK(dset_id, FAIL, "H5Dcreate2");
 
     /* Check reference count on named datatype */
-    ret = H5Oget_info_by_name(file_id, TYPE1_NAME, &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(file_id, TYPE1_NAME, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 2, "H5Oget_info_by_name");
 
@@ -1687,7 +1687,7 @@ test_attr_dtype_shared(hid_t fapl)
     CHECK(attr_id, FAIL, "H5Acreate2");
 
     /* Check reference count on named datatype */
-    ret = H5Oget_info_by_name(file_id, TYPE1_NAME, &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(file_id, TYPE1_NAME, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 3, "H5Oget_info_by_name");
 
@@ -1700,7 +1700,7 @@ test_attr_dtype_shared(hid_t fapl)
     CHECK(ret, FAIL, "H5Adelete");
 
     /* Check reference count on named datatype */
-    ret = H5Oget_info_by_name(file_id, TYPE1_NAME, &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(file_id, TYPE1_NAME, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 2, "H5Oget_info_by_name");
 
@@ -1709,7 +1709,7 @@ test_attr_dtype_shared(hid_t fapl)
     CHECK(attr_id, FAIL, "H5Acreate2");
 
     /* Check reference count on named datatype */
-    ret = H5Oget_info_by_name(file_id, TYPE1_NAME, &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(file_id, TYPE1_NAME, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 3, "H5Oget_info_by_name");
 
@@ -1764,7 +1764,7 @@ test_attr_dtype_shared(hid_t fapl)
     CHECK(ret, FAIL, "H5Dclose");
 
     /* Check reference count on named datatype */
-    ret = H5Oget_info_by_name(file_id, TYPE1_NAME, &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(file_id, TYPE1_NAME, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 3, "H5Oget_info_by_name");
 
@@ -1773,7 +1773,7 @@ test_attr_dtype_shared(hid_t fapl)
     CHECK(ret, FAIL, "H5Ldelete");
 
     /* Check reference count on named datatype */
-    ret = H5Oget_info_by_name(file_id, TYPE1_NAME, &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(file_id, TYPE1_NAME, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 1, "H5Oget_info_by_name");
 
@@ -2464,7 +2464,7 @@ test_attr_dense_delete(hid_t fcpl, hid_t fapl)
         CHECK(ret, FAIL, "H5Aclose");
 
         /* Check # of attributes */
-        ret = H5Oget_info(dataset, &oinfo);
+        ret = H5Oget_info2(dataset, &oinfo, H5O_INFO_NUM_ATTRS);
         CHECK(ret, FAIL, "H5Oget_info");
         VERIFY(oinfo.num_attrs, (u + 1), "H5Oget_info");
     } /* end for */
@@ -2646,7 +2646,7 @@ test_attr_dense_rename(hid_t fcpl, hid_t fapl)
         CHECK(ret, FAIL, "H5Arename_by_name");
 
         /* Check # of attributes */
-        ret = H5Oget_info(dataset, &oinfo);
+        ret = H5Oget_info2(dataset, &oinfo, H5O_INFO_NUM_ATTRS);
         CHECK(ret, FAIL, "H5Oget_info");
         VERIFY(oinfo.num_attrs, (u + 1), "H5Oget_info");
     } /* end for */
@@ -2798,7 +2798,7 @@ test_attr_dense_unlink(hid_t fcpl, hid_t fapl)
         CHECK(ret, FAIL, "H5Aclose");
 
         /* Check # of attributes */
-        ret = H5Oget_info(dataset, &oinfo);
+        ret = H5Oget_info2(dataset, &oinfo, H5O_INFO_NUM_ATTRS);
         CHECK(ret, FAIL, "H5Oget_info");
         VERIFY(oinfo.num_attrs, (u + 1), "H5Oget_info");
     } /* end for */
@@ -10484,7 +10484,7 @@ test_attr_bug8(hid_t fcpl, hid_t fapl)
     CHECK(gid, FAIL, "H5Gcreate2");
 
     /* Get root group address */
-    ret = H5Oget_info(fid, &oinfo);
+    ret = H5Oget_info2(fid, &oinfo, H5O_INFO_BASIC);
     CHECK(ret, FAIL, "H5Oget_info");
     root_addr = oinfo.addr;
 
@@ -10509,7 +10509,7 @@ test_attr_bug8(hid_t fcpl, hid_t fapl)
     CHECK(gid, FAIL, "H5Gopen2");
     oid = H5Oopen(gid, LINK1_NAME, H5P_DEFAULT);
     CHECK(oid, FAIL, "H5Oopen");
-    ret = H5Oget_info(oid, &oinfo);
+    ret = H5Oget_info2(oid, &oinfo, H5O_INFO_BASIC);
     CHECK(ret, FAIL, "H5Oget_info");
     if(oinfo.addr != root_addr)
         TestErrPrintf("incorrect link target address: addr: %llu, expected: %llu\n", (long long unsigned)oinfo.addr, (long long unsigned)root_addr);
@@ -10554,7 +10554,7 @@ test_attr_bug8(hid_t fcpl, hid_t fapl)
     CHECK(gid, FAIL, "H5Gopen2");
     oid = H5Oopen(gid, LINK1_NAME, H5P_DEFAULT);
     CHECK(oid, FAIL, "H5Oopen");
-    ret = H5Oget_info(oid, &oinfo);
+    ret = H5Oget_info2(oid, &oinfo, H5O_INFO_BASIC);
     CHECK(ret, FAIL, "H5Oget_info");
     if(oinfo.addr != root_addr)
         TestErrPrintf("incorrect link target address: addr: %llu, expected: %llu\n", (long long unsigned)oinfo.addr, (long long unsigned)root_addr);
diff --git a/test/testfiles/err_compat_1 b/test/testfiles/err_compat_1
index d471e13..8190665 100644
--- a/test/testfiles/err_compat_1
+++ b/test/testfiles/err_compat_1
@@ -54,6 +54,6 @@ HDF5-DIAG: Error detected in HDF5 (version (number)) thread (IDs):
   #001: (file name) line (number) in test_error2(): H5Dwrite shouldn't succeed
     major: Error API
     minor: Write failed
-  #002: (file name) line (number) in H5Dwrite(): not a dataset
+  #002: (file name) line (number) in H5Dwrite(): dset_id is not a dataset ID
     major: Invalid arguments to routine
     minor: Inappropriate type
diff --git a/test/testfiles/error_test_1 b/test/testfiles/error_test_1
index b0b5085..02cfed8 100644
--- a/test/testfiles/error_test_1
+++ b/test/testfiles/error_test_1
@@ -21,7 +21,7 @@ Error Test-DIAG: Error detected in Error Program (1.0) thread (IDs):
 
 Testing error API based on data I/O
 HDF5-DIAG: Error detected in HDF5 (version (number)) thread (IDs):
-  #000: (file name) line (number) in H5Dwrite(): not a dataset
+  #000: (file name) line (number) in H5Dwrite(): dset_id is not a dataset ID
     major: Invalid arguments to routine
     minor: Inappropriate type
 Error Test-DIAG: Error detected in Error Program (1.0) thread (IDs):
@@ -32,7 +32,7 @@ Error Test-DIAG: Error detected in Error Program (1.0) thread (IDs):
     major: Error in IO
     minor: Error in H5Dwrite
 HDF5-DIAG: Error detected in HDF5 (version (number)) thread (IDs):
-  #002: (file name) line (number) in H5Dwrite(): not a dataset
+  #002: (file name) line (number) in H5Dwrite(): dset_id is not a dataset ID
     major: Invalid arguments to routine
     minor: Inappropriate type
 
diff --git a/test/tfile.c b/test/tfile.c
index b630ee0..ad7f87f 100644
--- a/test/tfile.c
+++ b/test/tfile.c
@@ -4891,7 +4891,7 @@ test_libver_bounds_real(H5F_libver_t libver_create, unsigned oh_vers_create,
     /*
      * Make sure the root group has the correct object header version
      */
-    ret = H5Oget_info_by_name(file, "/", &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(file, "/", &oinfo, H5O_INFO_HDR, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.hdr.version, oh_vers_create, "H5Oget_info_by_name");
 
@@ -4907,7 +4907,7 @@ test_libver_bounds_real(H5F_libver_t libver_create, unsigned oh_vers_create,
     file = H5Fopen("tfile5.h5", H5F_ACC_RDWR, fapl);
     CHECK(file, FAIL, "H5Fopen");
 
-    ret = H5Oget_info_by_name(file, "/", &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(file, "/", &oinfo, H5O_INFO_HDR, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.hdr.version, oh_vers_create, "H5Oget_info_by_name");
 
@@ -4918,7 +4918,7 @@ test_libver_bounds_real(H5F_libver_t libver_create, unsigned oh_vers_create,
     group = H5Gcreate2(file, "/G1", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
     CHECK(group, FAIL, "H5Gcreate");
 
-    ret = H5Oget_info(group, &oinfo);
+    ret = H5Oget_info2(group, &oinfo, H5O_INFO_HDR);
     CHECK(ret, FAIL, "H5Oget_info");
     VERIFY(oinfo.hdr.version, oh_vers_mod, "H5Oget_info");
 
@@ -4932,7 +4932,7 @@ test_libver_bounds_real(H5F_libver_t libver_create, unsigned oh_vers_create,
     group = H5Gcreate2(file, "/G1/G3", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
     CHECK(group, FAIL, "H5Gcreate");
 
-    ret = H5Oget_info(group, &oinfo);
+    ret = H5Oget_info2(group, &oinfo, H5O_INFO_HDR);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.hdr.version, oh_vers_mod, "H5Oget_info_by_name");
 
@@ -4942,7 +4942,7 @@ test_libver_bounds_real(H5F_libver_t libver_create, unsigned oh_vers_create,
     /*
      * Make sure the root group still has the correct object header version
      */
-    ret = H5Oget_info_by_name(file, "/", &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(file, "/", &oinfo, H5O_INFO_HDR, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.hdr.version, oh_vers_create, "H5Oget_info_by_name");
 
@@ -5640,7 +5640,7 @@ test_libver_bounds_obj(hid_t fapl)
     CHECK(fid, FAIL, "H5Fcreate");
 
     /* Get root group's object info */
-    ret = H5Oget_info_by_name(fid, "/", &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, "/", &oinfo, H5O_INFO_HDR, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
 
     /* Verify object header version is 2 because shared message is enabled */
@@ -5659,7 +5659,7 @@ test_libver_bounds_obj(hid_t fapl)
     CHECK(fid, FAIL, "H5Fcreate");
 
     /* Get root group's object info */
-    ret = H5Oget_info_by_name(fid, "/", &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, "/", &oinfo, H5O_INFO_HDR, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
 
     /* Verify object header version is as indicated by low_bound */
@@ -5714,7 +5714,7 @@ test_libver_bounds_obj(hid_t fapl)
                     VERIFY(ginfo.storage_type, H5G_STORAGE_TYPE_SYMBOL_TABLE, "H5Gget_info");
 
                 /* Get object header information */
-                ret = H5Oget_info_by_name(gid, GRP_NAME, &oinfo, H5P_DEFAULT);
+                ret = H5Oget_info_by_name2(gid, GRP_NAME, &oinfo, H5O_INFO_HDR, H5P_DEFAULT);
                 CHECK(ret, FAIL, "H5Oget_info_by_name");
 
                 /* Verify object header version as indicated by low_bound */
diff --git a/test/th5o.c b/test/th5o.c
index 00d706c..63fee5f 100644
--- a/test/th5o.c
+++ b/test/th5o.c
@@ -410,13 +410,13 @@ test_h5o_refcount(void)
     CHECK(ret, FAIL, "H5Sclose");
 
     /* Get ref counts for each object.  They should all be 1, since each object has a hard link. */
-    ret = H5Oget_info_by_name(fid, "group", &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, "group", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 1, "reference count in H5Oget_info_by_name");
-    ret = H5Oget_info_by_name(fid, "datatype", &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, "datatype", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 1, "reference count in H5Oget_info_by_name");
-    ret = H5Oget_info_by_name(fid, "dataset", &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, "dataset", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 1, "reference count in H5Oget_info_by_name");
 
@@ -429,13 +429,13 @@ test_h5o_refcount(void)
     CHECK(ret, FAIL, "H5Oincr_refcount");
 
     /* Get ref counts for each object.  They should all be 2 now. */
-    ret = H5Oget_info_by_name(fid, "group", &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, "group", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 2, "reference count in H5Oget_info_by_name");
-    ret = H5Oget_info_by_name(fid, "datatype", &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, "datatype", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 2, "reference count in H5Oget_info_by_name");
-    ret = H5Oget_info_by_name(fid, "dataset", &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, "dataset", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 2, "reference count in H5Oget_info_by_name");
 
@@ -447,13 +447,13 @@ test_h5o_refcount(void)
     ret = H5Odecr_refcount(dset);
     CHECK(ret, FAIL, "H5Odecr_refcount");
 
-    ret = H5Oget_info_by_name(fid, "group", &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, "group", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 1, "reference count in H5Oget_info_by_name");
-    ret = H5Oget_info_by_name(fid, "datatype", &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, "datatype", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 1, "reference count in H5Oget_info_by_name");
-    ret = H5Oget_info_by_name(fid, "dataset", &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, "dataset", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 1, "reference count in H5Oget_info_by_name");
 
@@ -485,13 +485,13 @@ test_h5o_refcount(void)
     dset = H5Dopen2(fid, "dataset", H5P_DEFAULT);
     CHECK(dset, FAIL, "H5Dopen2");
 
-    ret = H5Oget_info_by_name(fid, "group", &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, "group", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 2, "reference count in H5Oget_info_by_name");
-    ret = H5Oget_info_by_name(fid, "datatype", &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, "datatype", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 2, "reference count in H5Oget_info_by_name");
-    ret = H5Oget_info_by_name(fid, "dataset", &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, "dataset", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 2, "reference count in H5Oget_info_by_name");
 
@@ -523,13 +523,13 @@ test_h5o_refcount(void)
     dset = H5Dopen2(fid, "dataset", H5P_DEFAULT);
     CHECK(dset, FAIL, "H5Dopen2");
 
-    ret = H5Oget_info_by_name(fid, "group", &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, "group", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 1, "reference count in H5Oget_info_by_name");
-    ret = H5Oget_info_by_name(fid, "datatype", &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, "datatype", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 1, "reference count in H5Oget_info_by_name");
-    ret = H5Oget_info_by_name(fid, "dataset", &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, "dataset", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.rc, 1, "reference count in H5Oget_info_by_name");
 
@@ -1272,9 +1272,9 @@ test_h5o_getinfo_same_file(void)
     HDmemset(&oinfo2, 0, sizeof(oinfo2));
 
     /* Query the object info for each object, through group IDs */
-    ret = H5Oget_info(gid1, &oinfo1);
+    ret = H5Oget_info2(gid1, &oinfo1, H5O_INFO_BASIC);
     CHECK(ret, FAIL, "H5Oget_info");
-    ret = H5Oget_info(gid2, &oinfo2);
+    ret = H5Oget_info2(gid2, &oinfo2, H5O_INFO_BASIC);
     CHECK(ret, FAIL, "H5Oget_info");
 
     VERIFY(oinfo1.fileno, oinfo2.fileno, "file number from H5Oget_info");
@@ -1284,9 +1284,9 @@ test_h5o_getinfo_same_file(void)
     HDmemset(&oinfo2, 0, sizeof(oinfo2));
 
     /* Query the object info for each object, by name */
-    ret = H5Oget_info_by_name(fid1, "group1", &oinfo1, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid1, "group1", &oinfo1, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
-    ret = H5Oget_info_by_name(fid1, "group2", &oinfo2, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid1, "group2", &oinfo2, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
 
     VERIFY(oinfo1.fileno, oinfo2.fileno, "file number from H5Oget_info");
@@ -1317,9 +1317,9 @@ test_h5o_getinfo_same_file(void)
     HDmemset(&oinfo2, 0, sizeof(oinfo2));
 
     /* Query the object info for each object, through group IDs */
-    ret = H5Oget_info(gid1, &oinfo1);
+    ret = H5Oget_info2(gid1, &oinfo1, H5O_INFO_BASIC);
     CHECK(ret, FAIL, "H5Oget_info");
-    ret = H5Oget_info(gid2, &oinfo2);
+    ret = H5Oget_info2(gid2, &oinfo2, H5O_INFO_BASIC);
     CHECK(ret, FAIL, "H5Oget_info");
 
     VERIFY(oinfo1.fileno, oinfo2.fileno, "file number from H5Oget_info");
@@ -1329,9 +1329,9 @@ test_h5o_getinfo_same_file(void)
     HDmemset(&oinfo2, 0, sizeof(oinfo2));
 
     /* Query the object info for each object, by name */
-    ret = H5Oget_info_by_name(fid1, "group1", &oinfo1, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid1, "group1", &oinfo1, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
-    ret = H5Oget_info_by_name(fid1, "group2", &oinfo2, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid1, "group2", &oinfo2, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
 
     VERIFY(oinfo1.fileno, oinfo2.fileno, "file number from H5Oget_info");
@@ -1348,6 +1348,136 @@ test_h5o_getinfo_same_file(void)
 
 } /* test_h5o_getinfo_same_file() */
 
+#ifndef H5_NO_DEPRECATED_SYMBOLS
+
+/****************************************************************
+**
+**  visit_obj_cb():
+**      This is the callback function invoked by H5Ovisit1() in 
+**      test_h5o_getinfo_visit():
+**      --Verify that the object info returned to the callback
+**        function is the same as H5Oget_info2().
+**
+****************************************************************/
+static int
+visit_obj_cb(hid_t group_id, const char *name, const H5O_info_t *oinfo1,
+    void H5_ATTR_UNUSED *_op_data)
+{
+    H5O_info_t oinfo2;  /* Object info structs */
+
+    /* Verify the object info for "group1", "group2" and the root group */
+    if(!(HDstrcmp(name, "group1"))) {
+        H5Oget_info_by_name2(group_id, name, &oinfo2, H5O_INFO_NUM_ATTRS, H5P_DEFAULT);
+        VERIFY(oinfo1->num_attrs, oinfo2.num_attrs, "obj info from H5Ovisit1");
+    } else if(!(HDstrcmp(name, "group2"))) {
+        H5Oget_info_by_name2(group_id, name, &oinfo2, H5O_INFO_HDR, H5P_DEFAULT);
+        VERIFY(oinfo1->hdr.nmesgs, oinfo2.hdr.nmesgs, "obj info from H5Ovisit1/H5Oget_info2");
+        VERIFY(oinfo1->hdr.nchunks, oinfo2.hdr.nchunks, "obj info from H5Ovisit1/H5Oget_info2");
+    } else if(!(HDstrcmp(name, "."))) {
+        H5Oget_info_by_name2(group_id, name, &oinfo2, H5O_INFO_META_SIZE, H5P_DEFAULT);
+        VERIFY(oinfo1->meta_size.obj.index_size, oinfo2.meta_size.obj.index_size, "obj info from H5Ovisit1/H5Oget_info2");
+        VERIFY(oinfo1->meta_size.obj.heap_size, oinfo2.meta_size.obj.heap_size, "obj info from H5Ovisit1/H5Oget_info2");
+    }
+
+    return(H5_ITER_CONT);
+} /* end visit_obj_cb() */
+
+
+/****************************************************************
+**
+**  test_h5o_getinfo_visit():  
+**    Verify that the object info returned via H5Oget_info1()
+**    and H5Oget_info2() are the same.
+**    Verify that the object info retrieved via H5Ovisit1() is
+**    the same as H5Oget_info2().
+**
+****************************************************************/
+static void
+test_h5o_getinfo_visit(void)
+{
+    hid_t fid = -1;             /* HDF5 File ID */
+    hid_t gid1 = -1, gid2 = -1; /* Group IDs */
+    hid_t sid = -1;             /* Dataspace ID */
+    hid_t aid = -1;             /* Attribute ID */
+    H5O_info_t oinfo1, oinfo2;  /* Object info structs */
+    char attrname[25];          /* Attribute name */
+    int j;                      /* Local index variable */
+    herr_t ret;                 /* Value returned from API calls */
+
+    /* Create an HDF5 file */
+    fid = H5Fcreate(TEST_FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+    CHECK(fid, FAIL, "H5Fcreate");
+
+    /* Create "group1" in the file */
+    gid1 = H5Gcreate2(fid, "group1", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
+    CHECK(gid1, FAIL, "H5Gcreate2");
+
+    /* Create dataspace */
+    sid = H5Screate(H5S_SCALAR);
+    CHECK(sid, FAIL, "H5Screate");
+
+    /* Attach 10 attributes to "group1" */
+    for(j = 0; j <10; j++) {
+        /* Create the attribute name */
+        sprintf(attrname, "attr%u", j);
+        /* Create the attribute */
+        aid = H5Acreate2(gid1, attrname, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT);
+        CHECK(aid, FAIL, "H5Acreate2");
+        /* Close the attribute */
+        ret = H5Aclose(aid);
+        CHECK(ret, FAIL, "H5Aclose");
+    }
+
+    /* Create "group2" in the file */
+    gid2 = H5Gcreate2(fid, "group2", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
+    CHECK(gid2, FAIL, "H5Gcreate2");
+
+    /* Reset object info */
+    HDmemset(&oinfo1, 0, sizeof(oinfo1));
+    HDmemset(&oinfo2, 0, sizeof(oinfo2));
+
+    /* Query the object info for "group1" via H5Oget_info1 and H5Oget_info2 */
+    ret = H5Oget_info1(gid1, &oinfo1);
+    CHECK(ret, FAIL, "H5Oget_info");
+    ret = H5Oget_info2(gid1, &oinfo2, H5O_INFO_BASIC|H5O_INFO_NUM_ATTRS);
+    CHECK(ret, FAIL, "H5Oget_info");
+
+    /* Verify the object info for "group1" is correct */
+    VERIFY(oinfo1.fileno, oinfo2.fileno, "obj info from H5Oget_info1/2");
+    VERIFY(oinfo1.num_attrs, oinfo2.num_attrs, "obj info from H5Oget_info1/2");
+
+    /* Reset object info */
+    HDmemset(&oinfo1, 0, sizeof(oinfo1));
+    HDmemset(&oinfo2, 0, sizeof(oinfo2));
+
+    /* Query the object info for "group2" via H5Oget_info1 and H5Oget_info2 */
+    ret = H5Oget_info_by_name1(fid, "group2", &oinfo1, H5P_DEFAULT);
+    CHECK(ret, FAIL, "H5Oget_info_by_name");
+    ret = H5Oget_info_by_name2(fid, "group2", &oinfo2, H5O_INFO_HDR|H5O_INFO_META_SIZE, H5P_DEFAULT);
+    CHECK(ret, FAIL, "H5Oget_info_by_name");
+
+    /* Verify the object info for "group2" is correct */
+    VERIFY(oinfo1.hdr.nmesgs, oinfo2.hdr.nmesgs, "obj info from H5Oget_info1/2");
+    VERIFY(oinfo1.hdr.nchunks, oinfo2.hdr.nchunks, "obj info from H5Oget_info1/2");
+    VERIFY(oinfo1.meta_size.obj.index_size, oinfo2.meta_size.obj.index_size, "obj info from H5Oget_info1/2");
+    VERIFY(oinfo1.meta_size.obj.heap_size, oinfo2.meta_size.obj.heap_size, "obj info from H5Oget_info1/2");
+
+    /* Close everything */
+    ret = H5Gclose(gid1);
+    CHECK(ret, FAIL, "H5Gclose");
+    ret = H5Gclose(gid2);
+    CHECK(ret, FAIL, "H5Gclose");
+
+    /* Verify the object info returned to the callback function is correct */
+    ret = H5Ovisit1(fid, H5_INDEX_NAME, H5_ITER_INC, visit_obj_cb, NULL);
+
+    /* Close the file */
+    ret = H5Fclose(fid);
+    CHECK(ret, FAIL, "H5Fclose");
+
+} /* test_h5o_getinfo_visit() */
+
+#endif /* H5_NO_DEPRECATED_SYMBOLS */
 
 
 /****************************************************************
@@ -1370,6 +1500,9 @@ test_h5o(void)
     test_h5o_comment();         /* Test routines for comment */
     test_h5o_comment_by_name(); /* Test routines for comment by name */
     test_h5o_getinfo_same_file(); /* Test info for objects in the same file */
+#ifndef H5_NO_DEPRECATED_SYMBOLS
+    test_h5o_getinfo_visit();   /* Test object info for H5Oget_info1/2 and H5Ovisit1 */
+#endif
 } /* test_h5o() */
 
 
diff --git a/test/titerate.c b/test/titerate.c
index 82c26eb..de652a7 100644
--- a/test/titerate.c
+++ b/test/titerate.c
@@ -213,7 +213,7 @@ test_iter_group(hid_t fapl, hbool_t new_format)
         ret = (herr_t)H5Lget_name_by_idx(root_group, ".", H5_INDEX_NAME, H5_ITER_INC, (hsize_t)i, dataset_name, (size_t)NAMELEN, H5P_DEFAULT);
         CHECK(ret, FAIL, "H5Lget_name_by_idx");
 
-        ret = H5Oget_info_by_idx(root_group, ".", H5_INDEX_NAME, H5_ITER_INC, (hsize_t)i, &oinfo, H5P_DEFAULT);
+        ret = H5Oget_info_by_idx2(root_group, ".", H5_INDEX_NAME, H5_ITER_INC, (hsize_t)i, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
         CHECK(ret, FAIL, "H5Oget_info_by_idx");
     } /* end for */
 
@@ -239,7 +239,7 @@ test_iter_group(hid_t fapl, hbool_t new_format)
         ret = (herr_t)H5Lget_name_by_idx(file, ".", H5_INDEX_NAME, H5_ITER_INC, (hsize_t)i, dataset_name, (size_t)NAMELEN, H5P_DEFAULT);
         CHECK(ret, FAIL, "H5Lget_name_by_idx");
 
-        ret = H5Oget_info_by_idx(file, ".", H5_INDEX_NAME, H5_ITER_INC, (hsize_t)i, &oinfo, H5P_DEFAULT);
+        ret = H5Oget_info_by_idx2(file, ".", H5_INDEX_NAME, H5_ITER_INC, (hsize_t)i, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
         CHECK(ret, FAIL, "H5Oget_info_by_idx");
     } /* end for */
 
@@ -553,7 +553,7 @@ liter_cb2(hid_t loc_id, const char *name, const H5L_info_t H5_ATTR_UNUSED *link_
     /*
      * Get type of the object and check it.
      */
-    ret = H5Oget_info_by_name(loc_id, name, &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(loc_id, name, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
 
     if(test_info->type != oinfo.type) {
@@ -797,7 +797,7 @@ static void test_grp_memb_funcs(hid_t fapl)
         obj_names[i] = HDstrdup(dataset_name);
         CHECK_PTR(obj_names[i], "strdup");
 
-        ret = H5Oget_info_by_idx(root_group, ".", H5_INDEX_NAME, H5_ITER_INC, (hsize_t)i, &oinfo, H5P_DEFAULT);
+        ret = H5Oget_info_by_idx2(root_group, ".", H5_INDEX_NAME, H5_ITER_INC, (hsize_t)i, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
         CHECK(ret, FAIL, "H5Oget_info_by_idx");
 
         if(!HDstrcmp(dataset_name, "grp"))
@@ -891,7 +891,7 @@ static void test_links(hid_t fapl)
 
         /* Get object type */
         if(linfo.type == H5L_TYPE_HARD) {
-            ret = H5Oget_info_by_idx(gid, ".", H5_INDEX_NAME, H5_ITER_INC, (hsize_t)i, &oinfo, H5P_DEFAULT);
+            ret = H5Oget_info_by_idx2(gid, ".", H5_INDEX_NAME, H5_ITER_INC, (hsize_t)i, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
             CHECK(ret, FAIL, "H5Oget_info_by_idx");
         } /* end if */
 
diff --git a/test/tmisc.c b/test/tmisc.c
index 4a77b51..07234e9 100644
--- a/test/tmisc.c
+++ b/test/tmisc.c
@@ -674,11 +674,11 @@ test_misc4(void)
     CHECK(group3, FAIL, "H5Gcreate2");
 
     /* Get the stat information for each group */
-    ret = H5Oget_info_by_name(file1, MISC4_GROUP_1, &oinfo1, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(file1, MISC4_GROUP_1, &oinfo1, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
-    ret = H5Oget_info_by_name(file1, MISC4_GROUP_2, &oinfo2, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(file1, MISC4_GROUP_2, &oinfo2, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
-    ret = H5Oget_info_by_name(file2, MISC4_GROUP_1, &oinfo3, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(file2, MISC4_GROUP_1, &oinfo3, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
 
     /* Verify that the fileno values are the same for groups from file1 */
@@ -2929,7 +2929,7 @@ test_misc18(void)
     CHECK(did1, FAIL, "H5Dcreate2");
 
     /* Get object information */
-    ret = H5Oget_info_by_name(fid, MISC18_DSET1_NAME, &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, MISC18_DSET1_NAME, &oinfo, H5O_INFO_HDR|H5O_INFO_NUM_ATTRS, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.hdr.nmesgs, 6, "H5Oget_info_by_name");
     VERIFY(oinfo.hdr.nchunks, 1, "H5Oget_info_by_name");
@@ -2942,7 +2942,7 @@ test_misc18(void)
     CHECK(did2, FAIL, "H5Dcreate2");
 
     /* Get object information */
-    ret = H5Oget_info_by_name(fid, MISC18_DSET2_NAME, &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, MISC18_DSET2_NAME, &oinfo, H5O_INFO_HDR|H5O_INFO_NUM_ATTRS, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.hdr.nmesgs, 6, "H5Oget_info_by_name");
     VERIFY(oinfo.hdr.nchunks, 1, "H5Oget_info_by_name");
@@ -2975,7 +2975,7 @@ test_misc18(void)
     } /* end for */
 
     /* Get object information for dataset #1 now */
-    ret = H5Oget_info_by_name(fid, MISC18_DSET1_NAME, &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, MISC18_DSET1_NAME, &oinfo, H5O_INFO_HDR|H5O_INFO_NUM_ATTRS, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.hdr.nmesgs, 24, "H5Oget_info_by_name");
     VERIFY(oinfo.hdr.nchunks, 9, "H5Oget_info_by_name");
@@ -2984,7 +2984,7 @@ test_misc18(void)
     VERIFY(oinfo.num_attrs, 10, "H5Oget_info_by_name");
 
     /* Get object information for dataset #2 now */
-    ret = H5Oget_info_by_name(fid, MISC18_DSET2_NAME, &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(fid, MISC18_DSET2_NAME, &oinfo, H5O_INFO_HDR|H5O_INFO_NUM_ATTRS, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_name");
     VERIFY(oinfo.hdr.nmesgs, 24, "H5Oget_info_by_name");
     VERIFY(oinfo.hdr.nchunks, 9, "H5Oget_info_by_name");
@@ -3958,7 +3958,7 @@ test_misc23(void)
     tmp_id = H5Gopen2(file_id, "/A/B01", H5P_DEFAULT);
     CHECK(tmp_id, FAIL, "H5Gopen2");
 
-    status = H5Oget_info(tmp_id, &oinfo);
+    status = H5Oget_info2(tmp_id, &oinfo, H5O_INFO_BASIC);
     CHECK(status, FAIL, "H5Oget_info");
     VERIFY(oinfo.rc, 1, "H5Oget_info");
 
@@ -5238,7 +5238,7 @@ test_misc30_get_info_cb(hid_t loc_id, const char *name, const H5L_info_t H5_ATTR
 {
     H5O_info_t object_info;
 
-    return H5Oget_info_by_name(loc_id, name, &object_info, H5P_DEFAULT);
+    return H5Oget_info_by_name2(loc_id, name, &object_info, H5O_INFO_BASIC, H5P_DEFAULT);
 }
 
 static int
@@ -5504,19 +5504,19 @@ test_misc33(void)
 
     /* Case (1) */
     H5E_BEGIN_TRY {
-        ret = H5Oget_info_by_name(fid, "/soft_two", &oinfo, H5P_DEFAULT);
+        ret = H5Oget_info_by_name2(fid, "/soft_two", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     } H5E_END_TRY;
     VERIFY(ret, FAIL, "H5Oget_info_by_name");
 
     /* Case (2) */
     H5E_BEGIN_TRY {
-        ret = H5Oget_info_by_name(fid, "/dsetA", &oinfo, H5P_DEFAULT);
+        ret = H5Oget_info_by_name2(fid, "/dsetA", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     } H5E_END_TRY;
     VERIFY(ret, FAIL, "H5Oget_info_by_name");
 
     /* Case (3) */
     H5E_BEGIN_TRY {
-        ret = H5Oget_info_by_name(fid, "/soft_one", &oinfo, H5P_DEFAULT);
+        ret = H5Oget_info_by_name2(fid, "/soft_one", &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     } H5E_END_TRY;
     VERIFY(ret, FAIL, "H5Oget_info_by_name");
 
diff --git a/test/trefer.c b/test/trefer.c
index 55172c0..b7a1d59 100644
--- a/test/trefer.c
+++ b/test/trefer.c
@@ -1495,7 +1495,7 @@ test_reference_group(void)
     CHECK(size, FAIL, "H5Lget_name_by_idx");
     VERIFY_STR(objname, DSETNAME2, "H5Lget_name_by_idx");
 
-    ret = H5Oget_info_by_idx(gid, ".", H5_INDEX_NAME, H5_ITER_INC, (hsize_t)0, &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_idx2(gid, ".", H5_INDEX_NAME, H5_ITER_INC, (hsize_t)0, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     CHECK(ret, FAIL, "H5Oget_info_by_idx");
     VERIFY(oinfo.type, H5O_TYPE_DATASET, "H5Oget_info_by_idx");
 
diff --git a/test/tsohm.c b/test/tsohm.c
index 133b196..d00a03a 100644
--- a/test/tsohm.c
+++ b/test/tsohm.c
@@ -839,7 +839,7 @@ static void test_sohm_size1(void)
     CHECK_I(file, "size1_helper");
 
     /* Get the size of a dataset object header */
-    ret = H5Oget_info_by_name(file, DSETNAME[0], &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(file, DSETNAME[0], &oinfo, H5O_INFO_HDR, H5P_DEFAULT);
     CHECK_I(ret, "H5Oget_info_by_name");
     ret = H5Fclose(file);
     CHECK_I(ret, "H5Fclose");
@@ -894,7 +894,7 @@ static void test_sohm_size1(void)
     CHECK_I(file, "size1_helper");
 
     /* Get the size of a dataset object header */
-    ret = H5Oget_info_by_name(file, DSETNAME[0], &oinfo, H5P_DEFAULT);
+    ret = H5Oget_info_by_name2(file, DSETNAME[0], &oinfo, H5O_INFO_HDR, H5P_DEFAULT);
     CHECK_I(ret, "H5Oget_info_by_name");
     ret = H5Fclose(file);
     CHECK_I(ret, "H5Fclose");
diff --git a/test/unlink.c b/test/unlink.c
index f5754f8..2a7bbcd 100644
--- a/test/unlink.c
+++ b/test/unlink.c
@@ -446,9 +446,9 @@ check_new_move(hid_t fapl)
         FAIL_STACK_ERROR
 
     /* Get hard link info */
-    if(H5Oget_info_by_name(file, "/group2/group_new_name", &oi_hard1, H5P_DEFAULT) < 0)
+    if(H5Oget_info_by_name2(file, "/group2/group_new_name", &oi_hard1, H5O_INFO_BASIC, H5P_DEFAULT) < 0)
         FAIL_STACK_ERROR
-    if(H5Oget_info_by_name(file, "/group1/hard", &oi_hard2, H5P_DEFAULT) < 0)
+    if(H5Oget_info_by_name2(file, "/group1/hard", &oi_hard2, H5O_INFO_BASIC, H5P_DEFAULT) < 0)
         FAIL_STACK_ERROR
 
     /* Check hard links */
@@ -2228,7 +2228,7 @@ test_full_group_compact(hid_t fapl)
     /* Check reference count on objects to keep */
     for(u = 0; u < FULL_GROUP_NUM_KEEP; u++) {
         sprintf(objname, "/keep/keep %u\n", u);
-        if(H5Oget_info_by_name(file_id, objname, &oi, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+        if(H5Oget_info_by_name2(file_id, objname, &oi, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
         if(oi.rc != 2) TEST_ERROR
     } /* end for */
 
@@ -2245,7 +2245,7 @@ test_full_group_compact(hid_t fapl)
     /* Check reference count on objects to keep */
     for(u = 0; u < FULL_GROUP_NUM_KEEP; u++) {
         sprintf(objname, "/keep/keep %u\n", u);
-        if(H5Oget_info_by_name(file_id, objname, &oi, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+        if(H5Oget_info_by_name2(file_id, objname, &oi, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
         if(oi.rc != 1) TEST_ERROR
     } /* end for */
 
@@ -2374,7 +2374,7 @@ test_full_group_dense(hid_t fapl)
     /* Check reference count on objects to keep */
     for(u = 0; u < FULL_GROUP_NUM_KEEP; u++) {
         sprintf(objname, "/keep/keep %u\n", u);
-        if(H5Oget_info_by_name(file_id, objname, &oi, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+        if(H5Oget_info_by_name2(file_id, objname, &oi, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
         if(oi.rc != 2) TEST_ERROR
     } /* end for */
 
@@ -2391,7 +2391,7 @@ test_full_group_dense(hid_t fapl)
     /* Check reference count on objects to keep */
     for(u = 0; u < FULL_GROUP_NUM_KEEP; u++) {
         sprintf(objname, "/keep/keep %u\n", u);
-        if(H5Oget_info_by_name(file_id, objname, &oi, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
+        if(H5Oget_info_by_name2(file_id, objname, &oi, H5O_INFO_BASIC, H5P_DEFAULT) < 0) FAIL_STACK_ERROR
         if(oi.rc != 1) TEST_ERROR
     } /* end for */
 
diff --git a/test/vds.c b/test/vds.c
index 42bb0b8..386efe2 100644
--- a/test/vds.c
+++ b/test/vds.c
@@ -372,7 +372,7 @@ test_api_get_ex_dcpl(test_api_config_t config, hid_t fapl, hid_t dcpl,
             TEST_ERROR
 
         /* Test H5Oget_info returns correct metadata size */
-        if(H5Oget_info(dset, &oinfo) < 0)
+        if(H5Oget_info2(dset, &oinfo, H5O_INFO_META_SIZE) < 0)
             TEST_ERROR
         if(oinfo.meta_size.obj.index_size != (hsize_t)0)
             TEST_ERROR
diff --git a/tools/lib/h5diff.c b/tools/lib/h5diff.c
index 94cca58..28b1f00 100644
--- a/tools/lib/h5diff.c
+++ b/tools/lib/h5diff.c
@@ -433,7 +433,7 @@ trav_grp_symlinks(const char *path, const H5L_info_t *linfo, void *udata)
                 HGOTO_DONE(0);
 
             if(h5trav_visit(tinfo->fid, path, TRUE, TRUE,
-                         trav_grp_objs,trav_grp_symlinks, tinfo) < 0) {
+                         trav_grp_objs,trav_grp_symlinks, tinfo, H5O_INFO_BASIC) < 0) {
                 parallel_print("Error: Could not get file contents\n");
                 opts->err_stat = 1;
                 HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "Error: Could not get file contents");
@@ -465,7 +465,7 @@ trav_grp_symlinks(const char *path, const H5L_info_t *linfo, void *udata)
                 HGOTO_DONE(0);
 
             if(h5trav_visit(tinfo->fid, path, TRUE, TRUE,
-                            trav_grp_objs,trav_grp_symlinks, tinfo) < 0) {
+                            trav_grp_objs,trav_grp_symlinks, tinfo, H5O_INFO_BASIC) < 0) {
                 parallel_print("Error: Could not get file contents\n");
                 opts->err_stat = 1;
                 HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "Error: Could not get file contents\n");
@@ -645,7 +645,7 @@ h5diff(const char *fname1,
                 /* optional data pass */
                 info1_obj->opts = (diff_opt_t*)opts;
 
-                if(H5Oget_info_by_name(file1_id, obj1fullname, &oinfo1, H5P_DEFAULT) < 0) {
+                if(H5Oget_info_by_name2(file1_id, obj1fullname, &oinfo1, H5O_INFO_BASIC, H5P_DEFAULT) < 0) {
                     parallel_print("Error: Could not get file contents\n");
                     HGOTO_ERROR(1, H5E_tools_min_id_g, "Error: Could not get file contents");
                 }
@@ -695,7 +695,7 @@ h5diff(const char *fname1,
                 /* optional data pass */
                 info2_obj->opts = (diff_opt_t*)opts;
 
-                if(H5Oget_info_by_name(file2_id, obj2fullname, &oinfo2, H5P_DEFAULT) < 0) {
+                if(H5Oget_info_by_name2(file2_id, obj2fullname, &oinfo2, H5O_INFO_BASIC, H5P_DEFAULT) < 0) {
                     parallel_print("Error: Could not get file contents\n");
                     HGOTO_ERROR(1, H5E_tools_min_id_g, "Error: Could not get file contents");
                 }
@@ -846,7 +846,7 @@ h5diff(const char *fname1,
         info1_grp->opts = (diff_opt_t*)opts;
 
         if(h5trav_visit(file1_id, obj1fullname, TRUE, TRUE,
-                        trav_grp_objs, trav_grp_symlinks, info1_grp) < 0) {
+                        trav_grp_objs, trav_grp_symlinks, info1_grp, H5O_INFO_BASIC) < 0) {
             parallel_print("Error: Could not get file contents\n");
             HGOTO_ERROR(1, H5E_tools_min_id_g, "Could not get file contents");
         }
@@ -860,7 +860,7 @@ h5diff(const char *fname1,
         info2_grp->opts = (diff_opt_t*)opts;
 
         if(h5trav_visit(file2_id, obj2fullname, TRUE, TRUE,
-                        trav_grp_objs, trav_grp_symlinks, info2_grp) < 0) {
+                        trav_grp_objs, trav_grp_symlinks, info2_grp, H5O_INFO_BASIC) < 0) {
             parallel_print("Error: Could not get file contents\n");
             HGOTO_ERROR(1, H5E_tools_min_id_g, "Could not get file contents");
        } /* end if */
diff --git a/tools/lib/h5diff_array.c b/tools/lib/h5diff_array.c
index 11f5e41..9d5f062 100644
--- a/tools/lib/h5diff_array.c
+++ b/tools/lib/h5diff_array.c
@@ -2096,8 +2096,8 @@ static hsize_t diff_region(hid_t obj1_id, hid_t obj2_id, hid_t region1_id, hid_t
                 if (nfound_b && opts->m_verbose) {
                     H5O_info_t oi1, oi2;
 
-                    H5Oget_info(obj1_id, &oi1);
-                    H5Oget_info(obj2_id, &oi2);
+                    H5Oget_info2(obj1_id, &oi1, H5O_INFO_BASIC);
+                    H5Oget_info2(obj2_id, &oi2, H5O_INFO_BASIC);
 
                     parallel_print("Referenced dataset      %lu            %lu\n", (unsigned long) oi1.addr, (unsigned long) oi2.addr);
                     parallel_print( "------------------------------------------------------------\n");
diff --git a/tools/lib/h5diff_attr.c b/tools/lib/h5diff_attr.c
index 7f08cc7..4ad4c90 100644
--- a/tools/lib/h5diff_attr.c
+++ b/tools/lib/h5diff_attr.c
@@ -154,9 +154,9 @@ static herr_t build_match_list_attrs(hid_t loc1_id, hid_t loc2_id, table_attrs_t
 
     h5difftrace("build_match_list_attrs start\n");
 
-    if(H5Oget_info(loc1_id, &oinfo1) < 0)
+    if(H5Oget_info2(loc1_id, &oinfo1, H5O_INFO_NUM_ATTRS) < 0)
         HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "H5Oget_info first object failed");
-    if(H5Oget_info(loc2_id, &oinfo2) < 0)
+    if(H5Oget_info2(loc2_id, &oinfo2, H5O_INFO_NUM_ATTRS) < 0)
         HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "H5Oget_info second object failed");
 
     table_attrs_init(&table_lp);
diff --git a/tools/lib/h5tools.c b/tools/lib/h5tools.c
index 11888bc..470df63 100644
--- a/tools/lib/h5tools.c
+++ b/tools/lib/h5tools.c
@@ -1758,14 +1758,14 @@ h5tools_is_obj_same(hid_t loc_id1, const char *name1,
     hbool_t ret_val = 0;
 
     if ( name1 && HDstrcmp(name1, "."))
-      H5Oget_info_by_name(loc_id1, name1, &oinfo1, H5P_DEFAULT);
+      H5Oget_info_by_name2(loc_id1, name1, &oinfo1, H5O_INFO_BASIC, H5P_DEFAULT);
     else
-      H5Oget_info(loc_id1, &oinfo1);
+      H5Oget_info2(loc_id1, &oinfo1, H5O_INFO_BASIC);
 
     if ( name2 && HDstrcmp(name2, "."))
-      H5Oget_info_by_name(loc_id2, name2, &oinfo2, H5P_DEFAULT);
+      H5Oget_info_by_name2(loc_id2, name2, &oinfo2, H5O_INFO_BASIC, H5P_DEFAULT);
     else
-      H5Oget_info(loc_id2, &oinfo2);
+      H5Oget_info2(loc_id2, &oinfo2, H5O_INFO_BASIC);
 
     if (oinfo1.fileno == oinfo2.fileno && oinfo1.addr==oinfo2.addr)
       ret_val = 1;
diff --git a/tools/lib/h5tools_dump.c b/tools/lib/h5tools_dump.c
index 38ace81..69cecb0 100644
--- a/tools/lib/h5tools_dump.c
+++ b/tools/lib/h5tools_dump.c
@@ -1905,7 +1905,7 @@ h5tools_print_datatype(FILE *stream, h5tools_str_t *buffer, const h5tool_format_
         H5O_info_t  oinfo;
         obj_t      *obj = NULL;    /* Found object */
 
-        H5Oget_info(type, &oinfo);
+        H5Oget_info2(type, &oinfo, H5O_INFO_BASIC);
         obj = search_obj(h5dump_type_table, oinfo.addr);
 
         if(obj) {
diff --git a/tools/lib/h5tools_ref.c b/tools/lib/h5tools_ref.c
index d6e5f01..e98a8e2 100644
--- a/tools/lib/h5tools_ref.c
+++ b/tools/lib/h5tools_ref.c
@@ -113,7 +113,7 @@ init_ref_path_table(void)
             return (-1);
 
         /* Iterate over objects in this file */
-        if(h5trav_visit(thefile, "/", TRUE, TRUE, init_ref_path_cb, NULL, NULL) < 0) {
+        if(h5trav_visit(thefile, "/", TRUE, TRUE, init_ref_path_cb, NULL, NULL, H5O_INFO_BASIC) < 0) {
             error_msg("unable to construct reference path table\n");
             h5tools_setstatus(EXIT_FAILURE);
         } /* end if */
@@ -184,7 +184,7 @@ ref_path_table_lookup(const char *thepath)
 
     /* Get the object info now */
     /* (returns failure for dangling soft links) */
-    if(H5Oget_info_by_name(thefile, thepath, &oi, H5P_DEFAULT) < 0)
+    if(H5Oget_info_by_name2(thefile, thepath, &oi, H5O_INFO_BASIC, H5P_DEFAULT) < 0)
         return HADDR_UNDEF;
 
     /* Return OID */
diff --git a/tools/lib/h5tools_str.c b/tools/lib/h5tools_str.c
index a018394..3d595ca 100644
--- a/tools/lib/h5tools_str.c
+++ b/tools/lib/h5tools_str.c
@@ -1120,7 +1120,7 @@ h5tools_str_sprint(h5tools_str_t *str, const h5tool_format_t *info, hid_t contai
                             const char *path;
 
                             obj = H5Rdereference2(container, H5P_DEFAULT, H5R_OBJECT, vp);
-                            H5Oget_info(obj, &oi);
+                            H5Oget_info2(obj, &oi, H5O_INFO_BASIC);
 
                             /* Print object type and close object */
                             switch(oi.type) {
diff --git a/tools/lib/h5tools_utils.c b/tools/lib/h5tools_utils.c
index 5272e81..8ac0d32 100644
--- a/tools/lib/h5tools_utils.c
+++ b/tools/lib/h5tools_utils.c
@@ -507,7 +507,7 @@ find_objs_cb(const char *name, const H5O_info_t *oinfo, const char *already_seen
                     if(H5Tcommitted(type) > 0) {
                         H5O_info_t type_oinfo;
 
-                        H5Oget_info(type, &type_oinfo);
+                        H5Oget_info2(type, &type_oinfo, H5O_INFO_BASIC);
                         if(search_obj(info->type_table, type_oinfo.addr) == NULL)
                             add_obj(info->type_table, type_oinfo.addr, name, FALSE);
                     } /* end if */
@@ -573,7 +573,7 @@ init_objs(hid_t fid, find_objs_t *info, table_t **group_table,
     info->dset_table = *dset_table;
 
     /* Find all shared objects */
-    return(h5trav_visit(fid, "/", TRUE, TRUE, find_objs_cb, NULL, info));
+    return(h5trav_visit(fid, "/", TRUE, TRUE, find_objs_cb, NULL, info, H5O_INFO_BASIC));
 }
 
 
@@ -729,7 +729,7 @@ H5tools_get_symlink_info(hid_t file_id, const char * linkpath, h5tool_link_info_
         }
 
         /* get target object info */
-        if(H5Oget_info_by_name(file_id, linkpath, &trg_oinfo, lapl) < 0) {
+        if(H5Oget_info_by_name2(file_id, linkpath, &trg_oinfo, H5O_INFO_BASIC, lapl) < 0) {
             if(link_info->opt.msg_mode == 1)
                 parallel_print("Warning: unable to get object information for <%s>\n", linkpath);
             HGOTO_DONE(FAIL);
diff --git a/tools/lib/h5trav.c b/tools/lib/h5trav.c
index b6d32f7..917d5f5 100644
--- a/tools/lib/h5trav.c
+++ b/tools/lib/h5trav.c
@@ -43,6 +43,7 @@ typedef struct {
     hbool_t is_absolute;            /* Whether the traversal has absolute paths */
     const char *base_grp_name;      /* Name of the group that serves as the base
                                      * for iteration */
+    unsigned fields;                /* Fields needed in H5O_info_t struct */
 } trav_ud_traverse_t;
 
 typedef struct {
@@ -201,7 +202,7 @@ traverse_cb(hid_t loc_id, const char *path, const H5L_info_t *linfo,
         H5O_info_t oinfo;
 
         /* Get information about the object */
-        if(H5Oget_info_by_name(loc_id, path, &oinfo, H5P_DEFAULT) < 0) {
+        if(H5Oget_info_by_name2(loc_id, path, &oinfo, udata->fields, H5P_DEFAULT) < 0) {
             if(new_name)
                 HDfree(new_name);
             return(H5_ITER_ERROR);
@@ -251,13 +252,13 @@ traverse_cb(hid_t loc_id, const char *path, const H5L_info_t *linfo,
  */
 static int
 traverse(hid_t file_id, const char *grp_name, hbool_t visit_start,
-        hbool_t recurse, const trav_visitor_t *visitor)
+        hbool_t recurse, const trav_visitor_t *visitor, unsigned fields)
 {
     H5O_info_t  oinfo;          /* Object info for starting group */
     int         ret_value = SUCCEED;
 
     /* Get info for starting object */
-    if(H5Oget_info_by_name(file_id, grp_name, &oinfo, H5P_DEFAULT) < 0)
+    if(H5Oget_info_by_name2(file_id, grp_name, &oinfo, fields, H5P_DEFAULT) < 0)
         HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "H5Oget_info_by_name failed");
 
     /* Visit the starting object */
@@ -282,6 +283,7 @@ traverse(hid_t file_id, const char *grp_name, hbool_t visit_start,
         udata.visitor = visitor;
         udata.is_absolute = (*grp_name == '/');
         udata.base_grp_name = grp_name;
+        udata.fields = fields;
 
         /* Check for iteration of links vs. visiting all links recursively */
         if(recurse) {
@@ -356,9 +358,9 @@ trav_fileinfo_add(trav_info_t *info, hid_t loc_id)
     size_t idx = info->nused - 1;
 
     if ( info->paths[idx].path && HDstrcmp(info->paths[idx].path, "."))
-      H5Oget_info_by_name(loc_id, info->paths[idx].path, &oinfo, H5P_DEFAULT);
+      H5Oget_info_by_name2(loc_id, info->paths[idx].path, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT);
     else
-      H5Oget_info(loc_id, &oinfo);
+      H5Oget_info2(loc_id, &oinfo, H5O_INFO_BASIC);
 
     info->paths[idx].objno = oinfo.addr;
     info->paths[idx].fileno = oinfo.fileno;
@@ -436,7 +438,7 @@ h5trav_getinfo(hid_t file_id, trav_info_t *info)
     info_visitor.udata = info;
 
     /* Traverse all objects in the file, visiting each object & link */
-    if(traverse(file_id, "/", TRUE, TRUE, &info_visitor) < 0)
+    if(traverse(file_id, "/", TRUE, TRUE, &info_visitor, H5O_INFO_BASIC) < 0)
         HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "traverse failed");
 
 done:
@@ -602,7 +604,7 @@ h5trav_gettable(hid_t fid, trav_table_t *table)
     table_visitor.udata = table;
 
     /* Traverse all objects in the file, visiting each object & link */
-    if(traverse(fid, "/", TRUE, TRUE, &table_visitor) < 0)
+    if(traverse(fid, "/", TRUE, TRUE, &table_visitor, H5O_INFO_BASIC) < 0)
         HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "traverse failed");
 
 done:
@@ -1027,7 +1029,7 @@ h5trav_print(hid_t fid)
     print_visitor.udata = &print_udata;
 
     /* Traverse all objects in the file, visiting each object & link */
-    if(traverse(fid, "/", TRUE, TRUE, &print_visitor) < 0)
+    if(traverse(fid, "/", TRUE, TRUE, &print_visitor, H5O_INFO_BASIC) < 0)
         HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "traverse failed");
 
 done:
@@ -1047,7 +1049,7 @@ done:
 int
 h5trav_visit(hid_t fid, const char *grp_name, hbool_t visit_start,
     hbool_t recurse, h5trav_obj_func_t visit_obj, h5trav_lnk_func_t visit_lnk,
-    void *udata)
+    void *udata, unsigned fields)
 {
     trav_visitor_t visitor;             /* Visitor structure for objects */
     int            ret_value = SUCCEED;
@@ -1058,7 +1060,7 @@ h5trav_visit(hid_t fid, const char *grp_name, hbool_t visit_start,
     visitor.udata = udata;
 
     /* Traverse all objects in the file, visiting each object & link */
-    if(traverse(fid, grp_name, visit_start, recurse, &visitor) < 0)
+    if(traverse(fid, grp_name, visit_start, recurse, &visitor, fields) < 0)
         HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "traverse failed");
 
 done:
diff --git a/tools/lib/h5trav.h b/tools/lib/h5trav.h
index c2ad9b7..a1d33b7 100644
--- a/tools/lib/h5trav.h
+++ b/tools/lib/h5trav.h
@@ -134,7 +134,7 @@ extern "C" {
 H5TOOLS_DLL void h5trav_set_index(H5_index_t print_index_by, H5_iter_order_t print_index_order);
 H5TOOLS_DLL int h5trav_visit(hid_t file_id, const char *grp_name, 
     hbool_t visit_start, hbool_t recurse, h5trav_obj_func_t visit_obj, 
-    h5trav_lnk_func_t visit_lnk, void *udata);
+    h5trav_lnk_func_t visit_lnk, void *udata, unsigned fields);
 H5TOOLS_DLL herr_t symlink_visit_add(symlink_trav_t *visited, H5L_type_t type, const char *file, const char *path);
 H5TOOLS_DLL hbool_t symlink_is_visited(symlink_trav_t *visited, H5L_type_t type, const char *file, const char *path);
 
diff --git a/tools/src/h5dump/h5dump.c b/tools/src/h5dump/h5dump.c
index 25e4858..a5f0369 100644
--- a/tools/src/h5dump/h5dump.c
+++ b/tools/src/h5dump/h5dump.c
@@ -1482,7 +1482,7 @@ main(int argc, const char *argv[])
         }
 
         /* Get object info for root group */
-        if(H5Oget_info_by_name(fid, "/", &oi, H5P_DEFAULT) < 0) {
+        if(H5Oget_info_by_name2(fid, "/", &oi, H5O_INFO_BASIC, H5P_DEFAULT) < 0) {
             error_msg("internal error (file %s:line %d)\n", __FILE__, __LINE__);
             h5tools_setstatus(EXIT_FAILURE);
             goto done;
diff --git a/tools/src/h5dump/h5dump_ddl.c b/tools/src/h5dump/h5dump_ddl.c
index 6646626..5c47abd 100644
--- a/tools/src/h5dump/h5dump_ddl.c
+++ b/tools/src/h5dump/h5dump_ddl.c
@@ -229,7 +229,7 @@ dump_all_cb(hid_t group, const char *name, const H5L_info_t *linfo, void H5_ATTR
         H5O_info_t  oinfo;
 
         /* Stat the object */
-        if(H5Oget_info_by_name(group, name, &oinfo, H5P_DEFAULT) < 0) {
+        if(H5Oget_info_by_name2(group, name, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) {
             error_msg("unable to get object information for \"%s\"\n", name);
             h5tools_setstatus(EXIT_FAILURE);
             ret = FAIL;
@@ -706,7 +706,7 @@ dump_named_datatype(hid_t tid, const char *name)
                         h5tools_dump_header_format->datatypeblockbegin);
     h5tools_render_element(rawoutstream, outputformat, &ctx, &buffer, &curr_pos, (size_t)outputformat->line_ncols, (hsize_t)0, (hsize_t)0);
 
-    H5Oget_info(tid, &oinfo);
+    H5Oget_info2(tid, &oinfo, H5O_INFO_BASIC);
 
     /* Must check for uniqueness of all objects if we've traversed an elink,
      * otherwise only check if the reference count > 1.
@@ -876,7 +876,7 @@ dump_group(hid_t gid, const char *name)
 
     h5tools_dump_comment(rawoutstream, outputformat, &ctx, gid);
 
-    H5Oget_info(gid, &oinfo);
+    H5Oget_info2(gid, &oinfo, H5O_INFO_BASIC);
 
     /* Must check for uniqueness of all objects if we've traversed an elink,
      * otherwise only check if the reference count > 1.
@@ -1512,7 +1512,7 @@ handle_paths(hid_t fid, const char *path_name, void H5_ATTR_UNUSED * data, int H
 
         handle_udata.fid = fid;
         handle_udata.op_name = path_name;
-        if(h5trav_visit(fid, "/", TRUE, TRUE, obj_search, lnk_search, &handle_udata) < 0) {
+        if(h5trav_visit(fid, "/", TRUE, TRUE, obj_search, lnk_search, &handle_udata, H5O_INFO_BASIC) < 0) {
             error_msg("error traversing information\n");
             h5tools_setstatus(EXIT_FAILURE);
         }
@@ -1800,7 +1800,7 @@ handle_datasets(hid_t fid, const char *dset, void *data, int pe, const char *dis
     } /* end if */
 
 
-    H5Oget_info(dsetid, &oinfo);
+    H5Oget_info2(dsetid, &oinfo, H5O_INFO_BASIC);
     if(oinfo.rc > 1 || hit_elink) {
         obj_t  *found_obj;    /* Found object */
 
@@ -2101,7 +2101,7 @@ dump_extlink(hid_t group, const char *linkname, const char *objname)
         goto fail;
 
     /* Get object info */
-    if (H5Oget_info(oid, &oi) < 0) {
+    if (H5Oget_info2(oid, &oi, H5O_INFO_BASIC) < 0) {
         H5Oclose(oid);
         goto fail;
     }
diff --git a/tools/src/h5dump/h5dump_xml.c b/tools/src/h5dump/h5dump_xml.c
index 4e13df3..e399d8f 100644
--- a/tools/src/h5dump/h5dump_xml.c
+++ b/tools/src/h5dump/h5dump_xml.c
@@ -180,7 +180,7 @@ xml_dump_all_cb(hid_t group, const char *name, const H5L_info_t *linfo, void H5_
         H5O_info_t  oinfo;
 
         /* Stat the object */
-        if(H5Oget_info_by_name(group, name, &oinfo, H5P_DEFAULT) < 0) {
+        if(H5Oget_info_by_name2(group, name, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0) {
             error_msg("unable to get object information for \"%s\"\n", name);
             h5tools_setstatus(EXIT_FAILURE);
             ret = FAIL;
@@ -881,7 +881,7 @@ xml_print_datatype(hid_t type, unsigned in_group)
         obj_t  *found_obj;    /* Found object */
 
         /* detect a shared datatype, output only once */
-        H5Oget_info(type, &oinfo);
+        H5Oget_info2(type, &oinfo, H5O_INFO_BASIC);
         found_obj = search_obj(type_table, oinfo.addr);
 
         if(found_obj) {
@@ -1534,7 +1534,7 @@ xml_dump_datatype(hid_t type)
         obj_t  *found_obj;    /* Found object */
 
         /* Datatype is a shared or named datatype */
-        H5Oget_info(type, &oinfo);
+        H5Oget_info2(type, &oinfo, H5O_INFO_BASIC);
         found_obj = search_obj(type_table, oinfo.addr);
 
         if(found_obj) {
@@ -2362,7 +2362,7 @@ xml_dump_named_datatype(hid_t type, const char *name)
         h5tools_render_element(rawoutstream, outputformat, &ctx, &buffer, &curr_pos, (size_t)outputformat->line_ncols, (hsize_t)0, (hsize_t)0);
 
         /* Check uniqueness of named datatype */
-        H5Oget_info(type, &oinfo);
+        H5Oget_info2(type, &oinfo, H5O_INFO_BASIC);
         if(oinfo.rc > 1) {
             obj_t       *found_obj;     /* Found object */
 
@@ -2548,7 +2548,7 @@ xml_dump_group(hid_t gid, const char *name)
         }
     }
 
-    H5Oget_info(gid, &oinfo);
+    H5Oget_info2(gid, &oinfo, H5O_INFO_BASIC);
 
     if(oinfo.rc > 1) {
         obj_t *found_obj;    /* Found object */
diff --git a/tools/src/h5format_convert/h5format_convert.c b/tools/src/h5format_convert/h5format_convert.c
index 2bfe280..0fc0289 100644
--- a/tools/src/h5format_convert/h5format_convert.c
+++ b/tools/src/h5format_convert/h5format_convert.c
@@ -430,7 +430,7 @@ main(int argc, const char *argv[])
     } else { /* Convert all datasets in the file */
 	if(verbose_g)
 	    HDfprintf(stdout, "Processing all datasets in the file...\n");
-	if(h5trav_visit(fid, "/", TRUE, TRUE, convert_dsets_cb, NULL, &fid) < 0)
+	if(h5trav_visit(fid, "/", TRUE, TRUE, convert_dsets_cb, NULL, &fid, H5O_INFO_BASIC) < 0)
 	    goto done;
     } /* end else */
 
diff --git a/tools/src/h5ls/h5ls.c b/tools/src/h5ls/h5ls.c
index a07d308..4bc1526 100644
--- a/tools/src/h5ls/h5ls.c
+++ b/tools/src/h5ls/h5ls.c
@@ -1320,7 +1320,7 @@ print_type(h5tools_str_t *buffer, hid_t type, int ind)
     if(H5Tcommitted(type)) {
         H5O_info_t  oi;
 
-        if(H5Oget_info(type, &oi) >= 0)
+        if(H5Oget_info2(type, &oi, H5O_INFO_BASIC) >= 0)
             h5tools_str_append(buffer,"shared-%lu:"H5_PRINTF_HADDR_FMT" ",
                     oi.fileno, oi.addr);
         else
@@ -2386,7 +2386,7 @@ visit_obj(hid_t file, const char *oname, iter_t *iter)
     h5tools_str_reset(&buffer);
 
     /* Retrieve info for object to list */
-    if(H5Oget_info_by_name(file, oname, &oi, H5P_DEFAULT) < 0) {
+    if(H5Oget_info_by_name2(file, oname, &oi, H5O_INFO_BASIC|H5O_INFO_TIME, H5P_DEFAULT) < 0) {
         if(iter->symlink_target) {
             h5tools_str_append(&buffer, "{**NOT FOUND**}\n");
             iter->symlink_target = FALSE;
@@ -2414,7 +2414,7 @@ visit_obj(hid_t file, const char *oname, iter_t *iter)
         iter->name_start = iter->base_len;
 
         /* Specified name is a group. List the complete contents of the group. */
-        h5trav_visit(file, oname, (hbool_t) (display_root_g || iter->symlink_target), recursive_g, list_obj, list_lnk, iter);
+        h5trav_visit(file, oname, (hbool_t) (display_root_g || iter->symlink_target), recursive_g, list_obj, list_lnk, iter, H5O_INFO_BASIC|H5O_INFO_TIME);
 
         /* Close group */
         if(!iter->symlink_target)
diff --git a/tools/src/h5repack/h5repack.c b/tools/src/h5repack/h5repack.c
index e7f4aae..a63e56f 100644
--- a/tools/src/h5repack/h5repack.c
+++ b/tools/src/h5repack/h5repack.c
@@ -222,7 +222,7 @@ hid_t copy_named_datatype(hid_t type_in, hid_t fidout,
     H5O_info_t  oinfo;                 /* Object info of input dtype */
     hid_t       ret_value = -1;        /* The identifier of the named dtype in the out file */
 
-    if (H5Oget_info(type_in, &oinfo) < 0)
+    if (H5Oget_info2(type_in, &oinfo, H5O_INFO_BASIC) < 0)
         HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "H5Oget_info failed");
 
     if (*named_dt_head_p) {
@@ -352,7 +352,7 @@ copy_attr(hid_t loc_in, hid_t loc_out, named_dt_t **named_dt_head_p,
     hbool_t     is_ref = 0;
     H5T_class_t type_class = -1;
 
-    if (H5Oget_info(loc_in, &oinfo) < 0)
+    if (H5Oget_info2(loc_in, &oinfo, H5O_INFO_NUM_ATTRS) < 0)
         HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "H5Oget_info failed");
 
     /*-------------------------------------------------------------------------
diff --git a/tools/src/h5repack/h5repack_refs.c b/tools/src/h5repack/h5repack_refs.c
index 7b610a3..a275443 100644
--- a/tools/src/h5repack/h5repack_refs.c
+++ b/tools/src/h5repack/h5repack_refs.c
@@ -456,7 +456,7 @@ static int copy_refs_attr(hid_t loc_in,
     int         ref_comp_field_n = 0;
 
 
-    if(H5Oget_info(loc_in, &oinfo) < 0)
+    if(H5Oget_info2(loc_in, &oinfo, H5O_INFO_NUM_ATTRS) < 0)
         HGOTO_ERROR(FAIL, H5E_tools_min_id_g, "H5Oget_info failed");
 
     for(u = 0; u < (unsigned)oinfo.num_attrs; u++) {
@@ -807,7 +807,7 @@ MapIdToName(hid_t refobj_id, trav_table_t *travt)
             H5O_info_t   ref_oinfo;     /* Stat for the refobj id */
 
             /* obtain information to identify the referenced object uniquely */
-            if(H5Oget_info(refobj_id, &ref_oinfo) < 0)
+            if(H5Oget_info2(refobj_id, &ref_oinfo, H5O_INFO_BASIC) < 0)
                 goto out;
 
             if(ref_oinfo.addr == travt->objs[u].objno) {
diff --git a/tools/src/h5stat/h5stat.c b/tools/src/h5stat/h5stat.c
index 6f196b4..da713ac 100644
--- a/tools/src/h5stat/h5stat.c
+++ b/tools/src/h5stat/h5stat.c
@@ -1788,14 +1788,14 @@ main(int argc, const char *argv[])
             unsigned u;
 
             for(u = 0; u < hand->obj_count; u++) {
-                if(h5trav_visit(fid, hand->obj[u], TRUE, TRUE, obj_stats, lnk_stats, &iter) < 0)
+                if(h5trav_visit(fid, hand->obj[u], TRUE, TRUE, obj_stats, lnk_stats, &iter, H5O_INFO_ALL) < 0)
                     warn_msg("Unable to traverse object \"%s\"\n", hand->obj[u]);
                 else
                     print_statistics(hand->obj[u], &iter);
             } /* end for */
         } /* end if */
         else {
-            if(h5trav_visit(fid, "/", TRUE, TRUE, obj_stats, lnk_stats, &iter) < 0)
+            if(h5trav_visit(fid, "/", TRUE, TRUE, obj_stats, lnk_stats, &iter, H5O_INFO_ALL) < 0)
                 warn_msg("Unable to traverse objects/links in file \"%s\"\n", fname);
             else
                 print_statistics("/", &iter);
diff --git a/hl/test/dectris_hl_perf.c b/tools/test/perform/direct_write_perf.c
index 13cfac8..f13cd24 100644
--- a/hl/test/dectris_hl_perf.c
+++ b/tools/test/perform/direct_write_perf.c
@@ -12,11 +12,11 @@
  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 /*
- * This test is for the DECTRIS project to the H5DOwrite_chunk function
+ * This tests the performance of the H5Dwrite_chunk() function.
  *
  */
 
-#include "hdf5_hl.h"
+#include "hdf5.h"
 
 #ifdef H5_HAVE_FILTER_DEFLATE
 #include <zlib.h>
@@ -51,7 +51,7 @@
 #endif
 
 const char *FILENAME[] = {
-    "dectris_perf",
+    "direct_write",
     "unix.raw",
     NULL
 };
@@ -285,7 +285,7 @@ test_direct_write_uncompressed_data(hid_t fapl_id)
 
     struct timeval timeval_start;    
     
-    TESTING("H5DOwrite_chunk for uncompressed data");
+    TESTING("H5Dwrite_chunk for uncompressed data");
 
     if((dxpl = H5Pcreate(H5P_DATASET_XFER)) < 0)
         TEST_ERROR;
@@ -304,7 +304,7 @@ test_direct_write_uncompressed_data(hid_t fapl_id)
     /* Write the compressed chunk data repeatedly to cover all the chunks in the 
      * dataset, using the direct writing function.     */ 
     for(i=0; i<NX; i++) {
-        status = H5DOwrite_chunk(dataset, dxpl, filter_mask, offset, CHUNK_NY*CHUNK_NZ*sizeof(unsigned int), direct_buf[i]);
+        status = H5Dwrite_chunk(dataset, dxpl, filter_mask, offset, CHUNK_NY*CHUNK_NZ*sizeof(unsigned int), direct_buf[i]);
         (offset[0])++;
     }
 
@@ -369,7 +369,7 @@ test_direct_write_compressed_data(hid_t fapl_id)
     /* Write the compressed chunk data repeatedly to cover all the chunks in the 
      * dataset, using the direct writing function.     */ 
     for(i=0; i<NX; i++) {
-        status = H5DOwrite_chunk(dataset, dxpl, filter_mask, offset, data_size[i], outbuf[i]);
+        status = H5Dwrite_chunk(dataset, dxpl, filter_mask, offset, data_size[i], outbuf[i]);
         (offset[0])++;
     }
 
@@ -637,12 +637,6 @@ main (void)
     hid_t       fapl = H5P_DEFAULT;
     int         i;
 
-    /* Testing setup */
-/*    h5_reset();
-    fapl = h5_fileaccess();
-
-    h5_fixname(FILENAME[0], fapl, filename, sizeof filename);*/
-
     sprintf(filename, "%s.h5", FILENAME[0]);
 
     create_file(fapl);
@@ -657,7 +651,6 @@ main (void)
         free(direct_buf[i]);
     }
  
-/*    h5_cleanup(FILENAME, fapl);*/
     return 0;
 }