[svn-r16623] Description:

	Revise how code for array statistics works.

Tested on:
        FreeBSD/32 6.3 (duty) in debug mode
        FreeBSD/64 6.3 (liberty) w/C++ & FORTRAN, in debug mode
        Linux/32 2.6 (jam) w/PGI compilers, w/C++ & FORTRAN, w/threadsafe,
                                in debug mode
        Linux/64-amd64 2.6 (smirom) w/Intel compilers w/default API=1.6.x,
                                w/C++ & FORTRAN, in production mode
        Solaris/32 2.10 (linew) w/deprecated symbols disabled, w/C++ & FORTRAN,
                                w/szip filter, in production mode
        Linux/64-ia64 2.6 (cobalt) w/Intel compilers, w/C++ & FORTRAN,
                                in production mode
        Linux/64-ia64 2.4 (tg-login3) w/parallel, w/FORTRAN, in production mode
        Linux/64-amd64 2.6 (abe) w/parallel, w/FORTRAN, in production mode
        Mac OS X/32 10.5.6 (amazon) in debug mode
        Mac OS X/32 10.5.6 (amazon) w/C++ & FORTRAN, w/threadsafe,
                                in production mode
	

9 files changed, 87 insertions, 73 deletions

diff --git a/src/H5EA.c b/src/H5EA.c
index f1ed71b..568b301 100644
--- a/src/H5EA.c
+++ b/src/H5EA.c
@@ -265,7 +265,7 @@ HDfprintf(stderr, "%s: Called\n", FUNC);
     HDassert(nelmts);
 
     /* Retrieve the max. index set */
-    *nelmts = ea->hdr->stats.max_idx_set;
+    *nelmts = ea->hdr->stats.stored.max_idx_set;
 
 END_FUNC(PRIV)  /* end H5EA_get_nelmts() */
 
@@ -333,7 +333,8 @@ H5EA_set(const H5EA_t *ea, hid_t dxpl_id, hsize_t idx, const void *elmt))
     unsigned sblock_cache_flags = H5AC__NO_FLAGS_SET;   /* Flags to unprotecting super block */
     unsigned dblock_cache_flags = H5AC__NO_FLAGS_SET;   /* Flags to unprotecting data block */
     unsigned dblk_page_cache_flags = H5AC__NO_FLAGS_SET;   /* Flags to unprotecting data block page */
-    hbool_t hdr_dirty = FALSE;          /* Whether header information changed */
+    hbool_t stats_changed = FALSE;      /* Whether array statistics changed */
+    hbool_t hdr_dirty = FALSE;          /* Whether the array header changed */
 
 #ifdef QAK
 HDfprintf(stderr, "%s: Called\n", FUNC);
@@ -355,9 +356,10 @@ HDfprintf(stderr, "%s: Index %Hu\n", FUNC, idx);
 HDfprintf(stderr, "%s: Index block address not defined!\n", FUNC, idx);
 #endif /* QAK */
         /* Create the index block */
-        hdr->idx_blk_addr = H5EA__iblock_create(hdr, dxpl_id, &hdr_dirty);
+        hdr->idx_blk_addr = H5EA__iblock_create(hdr, dxpl_id, &stats_changed);
         if(!H5F_addr_defined(hdr->idx_blk_addr))
             H5E_THROW(H5E_CANTCREATE, "unable to create index block")
+        hdr_dirty = TRUE;
     } /* end if */
 #ifdef QAK
 HDfprintf(stderr, "%s: Index block address is: %a\n", FUNC, hdr->idx_blk_addr);
@@ -371,7 +373,7 @@ HDfprintf(stderr, "%s: Index block address is: %a\n", FUNC, hdr->idx_blk_addr);
     if(idx < hdr->cparam.idx_blk_elmts) {
         /* Set element in index block */
         HDmemcpy(((uint8_t *)iblock->elmts) + (hdr->cparam.cls->nat_elmt_size * idx), elmt, hdr->cparam.cls->nat_elmt_size);
-        iblock_cache_flags |= H5AC__DIRTIED_FLAG;
+        dblock_cache_flags |= H5AC__DIRTIED_FLAG;
     } /* end if */
     else {
         unsigned sblk_idx;      /* Which superblock does this index fall in? */
@@ -409,13 +411,13 @@ HDfprintf(stderr, "%s: dblk_idx = %u, iblock->ndblk_addrs = %Zu\n", FUNC, dblk_i
 
                 /* Create data block */
                 dblk_off = hdr->sblk_info[sblk_idx].start_idx + (dblk_idx * hdr->sblk_info[sblk_idx].dblk_nelmts);
-                dblk_addr = H5EA__dblock_create(hdr, dxpl_id, &hdr_dirty, dblk_off, hdr->sblk_info[sblk_idx].dblk_nelmts);
+                dblk_addr = H5EA__dblock_create(hdr, dxpl_id, &stats_changed, dblk_off, hdr->sblk_info[sblk_idx].dblk_nelmts);
                 if(!H5F_addr_defined(dblk_addr))
                     H5E_THROW(H5E_CANTCREATE, "unable to create extensible array data block")
 
                 /* Set data block address in index block */
                 iblock->dblk_addrs[dblk_idx] = dblk_addr;
-                iblock_cache_flags |= H5AC__DIRTIED_FLAG;
+                dblock_cache_flags |= H5AC__DIRTIED_FLAG;
             } /* end if */
 
             /* Protect data block */
@@ -441,7 +443,7 @@ HDfprintf(stderr, "%s: dblk_idx = %u, iblock->ndblk_addrs = %Zu\n", FUNC, dblk_i
                 haddr_t sblk_addr;        /* Address of data block created */
 
                 /* Create super block */
-                sblk_addr = H5EA__sblock_create(hdr, dxpl_id, &hdr_dirty, sblk_idx);
+                sblk_addr = H5EA__sblock_create(hdr, dxpl_id, &stats_changed, sblk_idx);
 #ifdef QAK
 HDfprintf(stderr, "%s: New super block address is: %a\n", FUNC, sblk_addr);
 #endif /* QAK */
@@ -450,7 +452,7 @@ HDfprintf(stderr, "%s: New super block address is: %a\n", FUNC, sblk_addr);
 
                 /* Set super block address in index block */
                 iblock->sblk_addrs[sblk_off] = sblk_addr;
-                iblock_cache_flags |= H5AC__DIRTIED_FLAG;
+                dblock_cache_flags |= H5AC__DIRTIED_FLAG;
             } /* end if */
 
             /* Protect super block */
@@ -471,7 +473,7 @@ HDfprintf(stderr, "%s: dblk_idx = %u, sblock->ndblks = %Zu\n", FUNC, dblk_idx, s
 
                 /* Create data block */
                 dblk_off = hdr->sblk_info[sblk_idx].start_idx + (dblk_idx * hdr->sblk_info[sblk_idx].dblk_nelmts);
-                dblk_addr = H5EA__dblock_create(hdr, dxpl_id, &hdr_dirty, dblk_off, sblock->dblk_nelmts);
+                dblk_addr = H5EA__dblock_create(hdr, dxpl_id, &stats_changed, dblk_off, sblock->dblk_nelmts);
                 if(!H5F_addr_defined(dblk_addr))
                     H5E_THROW(H5E_CANTCREATE, "unable to create extensible array data block")
 
@@ -561,12 +563,17 @@ HDfprintf(stderr, "%s: sblock->dblk_page_size = %Zu\n", FUNC, sblock->dblk_page_
 #ifdef QAK
 HDfprintf(stderr, "%s: idx = %Hu, hdr->stats.max_idx_set = %Hu\n", FUNC, idx, hdr->stats.max_idx_set);
 #endif /* QAK */
-    if(idx >= hdr->stats.max_idx_set) {
-        hdr->stats.max_idx_set = idx + 1;
-        hdr_dirty = TRUE;
+    if(idx >= hdr->stats.stored.max_idx_set) {
+        HDassert(iblock);
+        hdr->stats.stored.max_idx_set = idx + 1;
+        stats_changed = TRUE;
     } /* end if */
 
 CATCH
+    /* Check for updating array statistics */
+    if(stats_changed)
+        hdr_dirty = TRUE;
+
     /* Check for header modified */
     if(hdr_dirty)
         if(H5EA__hdr_modified(hdr) < 0)
@@ -624,7 +631,7 @@ HDfprintf(stderr, "%s: Index %Hu\n", FUNC, idx);
     hdr->f = ea->f;
 
     /* Check for element beyond max. element in array */
-    if(idx >= hdr->stats.max_idx_set) {
+    if(idx >= hdr->stats.stored.max_idx_set) {
 #ifdef QAK
 HDfprintf(stderr, "%s: Element beyond max. index set, hdr->stats.max_idx_set = %Hu, idx = %Hu\n", FUNC, hdr->stats.max_idx_set, idx);
 #endif /* QAK */
diff --git a/src/H5EAcache.c b/src/H5EAcache.c
index 286c6a5..f7a7962 100644
--- a/src/H5EAcache.c
+++ b/src/H5EAcache.c
@@ -254,13 +254,13 @@ H5EA__cache_hdr_load(H5F_t *f, hid_t dxpl_id, haddr_t addr, const void *_cls,
     hdr->cparam.max_dblk_page_nelmts_bits = *p++;  /* Log2(Max. # of elements in data block page) - i.e. # of bits needed to store max. # of elements in data block page */
 
     /* Array statistics */
-    hdr->stats.hdr_size = size;                         /* Size of header in file */
-    H5F_DECODE_LENGTH(f, p, hdr->stats.nsuper_blks);    /* Number of super blocks created */
-    H5F_DECODE_LENGTH(f, p, hdr->stats.super_blk_size); /* Size of super blocks created */
-    H5F_DECODE_LENGTH(f, p, hdr->stats.ndata_blks);     /* Number of data blocks created */
-    H5F_DECODE_LENGTH(f, p, hdr->stats.data_blk_size);  /* Size of data blocks created */
-    H5F_DECODE_LENGTH(f, p, hdr->stats.max_idx_set);    /* Max. index set (+1) */
-    H5F_DECODE_LENGTH(f, p, hdr->stats.nelmts);         /* Number of elements 'realized' */
+    hdr->stats.computed.hdr_size = size;                        /* Size of header in file */
+    H5F_DECODE_LENGTH(f, p, hdr->stats.stored.nsuper_blks);    /* Number of super blocks created */
+    H5F_DECODE_LENGTH(f, p, hdr->stats.stored.super_blk_size); /* Size of super blocks created */
+    H5F_DECODE_LENGTH(f, p, hdr->stats.stored.ndata_blks);     /* Number of data blocks created */
+    H5F_DECODE_LENGTH(f, p, hdr->stats.stored.data_blk_size);  /* Size of data blocks created */
+    H5F_DECODE_LENGTH(f, p, hdr->stats.stored.max_idx_set);    /* Max. index set (+1) */
+    H5F_DECODE_LENGTH(f, p, hdr->stats.stored.nelmts);         /* Number of elements 'realized' */
 
     /* Internal information */
     H5F_addr_decode(f, &p, &hdr->idx_blk_addr); /* Address of index block */
@@ -270,7 +270,7 @@ H5EA__cache_hdr_load(H5F_t *f, hid_t dxpl_id, haddr_t addr, const void *_cls,
         H5EA_iblock_t iblock;           /* Fake index block for computing size */
 
         /* Set index block count for file */
-        hdr->stats.nindex_blks = 1;
+        hdr->stats.computed.nindex_blks = 1;
 
         /* Set up fake index block for computing size on disk */
         iblock.hdr = hdr;
@@ -279,11 +279,11 @@ H5EA__cache_hdr_load(H5F_t *f, hid_t dxpl_id, haddr_t addr, const void *_cls,
         iblock.nsblk_addrs = hdr->nsblks - iblock.nsblks;
 
         /* Compute size of index block in file */
-        hdr->stats.index_blk_size = H5EA_IBLOCK_SIZE(&iblock);
+        hdr->stats.computed.index_blk_size = H5EA_IBLOCK_SIZE(&iblock);
     } /* end if */
     else {
-        hdr->stats.nindex_blks = 0;       /* Number of index blocks in file */
-        hdr->stats.index_blk_size = 0;    /* Size of index blocks in file */
+        hdr->stats.computed.nindex_blks = 0;       /* Number of index blocks in file */
+        hdr->stats.computed.index_blk_size = 0;    /* Size of index blocks in file */
     } /* end else */
 
     /* Sanity check */
@@ -389,12 +389,12 @@ H5EA__cache_hdr_flush(H5F_t *f, hid_t dxpl_id, hbool_t destroy, haddr_t addr,
         *p++ = hdr->cparam.max_dblk_page_nelmts_bits;  /* Log2(Max. # of elements in data block page) - i.e. # of bits needed to store max. # of elements in data block page */
 
         /* Array statistics */
-        H5F_ENCODE_LENGTH(f, p, hdr->stats.nsuper_blks);    /* Number of super blocks created */
-        H5F_ENCODE_LENGTH(f, p, hdr->stats.super_blk_size); /* Size of super blocks created */
-        H5F_ENCODE_LENGTH(f, p, hdr->stats.ndata_blks);     /* Number of data blocks created */
-        H5F_ENCODE_LENGTH(f, p, hdr->stats.data_blk_size);  /* Size of data blocks created */
-        H5F_ENCODE_LENGTH(f, p, hdr->stats.max_idx_set);    /* Max. index set (+1) */
-        H5F_ENCODE_LENGTH(f, p, hdr->stats.nelmts);         /* Number of elements 'realized' */
+        H5F_ENCODE_LENGTH(f, p, hdr->stats.stored.nsuper_blks);    /* Number of super blocks created */
+        H5F_ENCODE_LENGTH(f, p, hdr->stats.stored.super_blk_size); /* Size of super blocks created */
+        H5F_ENCODE_LENGTH(f, p, hdr->stats.stored.ndata_blks);     /* Number of data blocks created */
+        H5F_ENCODE_LENGTH(f, p, hdr->stats.stored.data_blk_size);  /* Size of data blocks created */
+        H5F_ENCODE_LENGTH(f, p, hdr->stats.stored.max_idx_set);    /* Max. index set (+1) */
+        H5F_ENCODE_LENGTH(f, p, hdr->stats.stored.nelmts);         /* Number of elements 'realized' */
 
         /* Internal information */
         H5F_addr_encode(f, &p, hdr->idx_blk_addr);  /* Address of index block */
diff --git a/src/H5EAdbg.c b/src/H5EAdbg.c
index 2c903b2..0acef62 100644
--- a/src/H5EAdbg.c
+++ b/src/H5EAdbg.c
@@ -147,16 +147,16 @@ H5EA__hdr_debug(H5F_t *f, hid_t dxpl_id, haddr_t addr, FILE *stream, int indent,
 	      (unsigned)hdr->cparam.max_dblk_page_nelmts_bits);
     HDfprintf(stream, "%*s%-*s %Hu\n", indent, "", fwidth,
 	      "Highest element index stored (+1):",
-	      hdr->stats.max_idx_set);
+	      hdr->stats.stored.max_idx_set);
     HDfprintf(stream, "%*s%-*s %Hu\n", indent, "", fwidth,
 	      "Number of super blocks created:",
-	      hdr->stats.nsuper_blks);
+	      hdr->stats.stored.nsuper_blks);
     HDfprintf(stream, "%*s%-*s %Hu\n", indent, "", fwidth,
 	      "Number of data blocks created:",
-	      hdr->stats.ndata_blks);
+	      hdr->stats.stored.ndata_blks);
     HDfprintf(stream, "%*s%-*s %Hu\n", indent, "", fwidth,
 	      "Number of elements 'realized':",
-	      hdr->stats.nelmts);
+	      hdr->stats.stored.nelmts);
     HDfprintf(stream, "%*s%-*s %a\n", indent, "", fwidth,
 	      "Index Block Address:",
 	      hdr->idx_blk_addr);
diff --git a/src/H5EAdblock.c b/src/H5EAdblock.c
index af2828a..07ba3d1 100644
--- a/src/H5EAdblock.c
+++ b/src/H5EAdblock.c
@@ -160,7 +160,7 @@ END_FUNC(PKG)   /* end H5EA__dblock_alloc() */
  */
 BEGIN_FUNC(PKG, ERR,
 haddr_t, HADDR_UNDEF, HADDR_UNDEF,
-H5EA__dblock_create(H5EA_hdr_t *hdr, hid_t dxpl_id, hbool_t *hdr_dirty,
+H5EA__dblock_create(H5EA_hdr_t *hdr, hid_t dxpl_id, hbool_t *stats_changed,
     hsize_t dblk_off, size_t nelmts))
 
     /* Local variables */
@@ -173,7 +173,7 @@ HDfprintf(stderr, "%s: Called, hdr->dblk_page_nelmts = %Zu, nelmts = %Zu\n", FUN
 
     /* Sanity check */
     HDassert(hdr);
-    HDassert(hdr_dirty);
+    HDassert(stats_changed);
     HDassert(nelmts > 0);
 
     /* Allocate the data block */
@@ -208,14 +208,14 @@ HDfprintf(stderr, "%s: dblock->block_off = %Hu\n", FUNC, dblock->block_off);
 	H5E_THROW(H5E_CANTINSERT, "can't add extensible array data block to cache")
 
     /* Update extensible array data block statistics */
-    hdr->stats.ndata_blks++;
-    hdr->stats.data_blk_size += dblock->size;
+    hdr->stats.stored.ndata_blks++;
+    hdr->stats.stored.data_blk_size += dblock->size;
 
     /* Increment count of elements "realized" */
-    hdr->stats.nelmts += nelmts;
+    hdr->stats.stored.nelmts += nelmts;
 
-    /* Mark the header dirty (for updating statistics) */
-    *hdr_dirty = TRUE;
+    /* Mark the statistics as changed */
+    *stats_changed = TRUE;
 
     /* Set address of data block to return */
     ret_value = dblock_addr;
diff --git a/src/H5EAhdr.c b/src/H5EAhdr.c
index 998e169..0a7ddef 100644
--- a/src/H5EAhdr.c
+++ b/src/H5EAhdr.c
@@ -236,7 +236,7 @@ HDfprintf(stderr, "%s: hdr->sblk_info[%Zu] = {%Zu, %Zu, %Hu, %Hu}\n", FUNC, u, h
     } /* end for */
 
     /* Set size of header on disk (locally and in statistics) */
-    hdr->stats.hdr_size = hdr->size = H5EA_HEADER_SIZE(hdr);
+    hdr->stats.computed.hdr_size = hdr->size = H5EA_HEADER_SIZE(hdr);
 
 CATCH
 
diff --git a/src/H5EAiblock.c b/src/H5EAiblock.c
index 2d93015..b931661 100644
--- a/src/H5EAiblock.c
+++ b/src/H5EAiblock.c
@@ -178,7 +178,7 @@ END_FUNC(PKG)   /* end H5EA__iblock_alloc() */
  */
 BEGIN_FUNC(PKG, ERR,
 haddr_t, HADDR_UNDEF, HADDR_UNDEF,
-H5EA__iblock_create(H5EA_hdr_t *hdr, hid_t dxpl_id, hbool_t *hdr_dirty))
+H5EA__iblock_create(H5EA_hdr_t *hdr, hid_t dxpl_id, hbool_t *stats_changed))
 
     /* Local variables */
     H5EA_iblock_t *iblock = NULL;       /* Extensible array index block */
@@ -190,7 +190,7 @@ HDfprintf(stderr, "%s: Called\n", FUNC);
 
     /* Sanity check */
     HDassert(hdr);
-    HDassert(hdr_dirty);
+    HDassert(stats_changed);
 
     /* Allocate the index block */
     if(NULL == (iblock = H5EA__iblock_alloc(hdr)))
@@ -235,16 +235,16 @@ HDfprintf(stderr, "%s: iblock->size = %Zu\n", FUNC, iblock->size);
 	H5E_THROW(H5E_CANTINSERT, "can't add extensible array index block to cache")
 
     /* Update extensible array index block statistics */
-    HDassert(0 == hdr->stats.nindex_blks);
-    HDassert(0 == hdr->stats.index_blk_size);
-    hdr->stats.nindex_blks = 1;
-    hdr->stats.index_blk_size = iblock->size;
+    HDassert(0 == hdr->stats.computed.nindex_blks);
+    HDassert(0 == hdr->stats.computed.index_blk_size);
+    hdr->stats.computed.nindex_blks = 1;
+    hdr->stats.computed.index_blk_size = iblock->size;
 
     /* Increment count of elements "realized" */
-    hdr->stats.nelmts += hdr->cparam.idx_blk_elmts;
+    hdr->stats.stored.nelmts += hdr->cparam.idx_blk_elmts;
 
-    /* Mark the header dirty (for updating statistics) */
-    *hdr_dirty = TRUE;
+    /* Mark the statistics as changed */
+    *stats_changed = TRUE;
 
     /* Set address of index block to return */
     ret_value = iblock_addr;
diff --git a/src/H5EApkg.h b/src/H5EApkg.h
index e374d3a..2364eb8 100644
--- a/src/H5EApkg.h
+++ b/src/H5EApkg.h
@@ -371,7 +371,7 @@ func_init_failed:							      \
     + 1 /* Min. # of data block pointers for a super block */                 \
     + 1 /* Log2(Max. # of elements in data block page) - i.e. # of bits needed to store max. # of elements in data block page */ \
                                                                               \
-    /* Extensible Array Header statistics fields */                           \
+    /* Extensible Array statistics fields */                                  \
     + (h)->sizeof_size /* Number of super blocks created */		      \
     + (h)->sizeof_size /* Size of super blocks created */		      \
     + (h)->sizeof_size /* Number of data blocks created */		      \
@@ -472,7 +472,7 @@ typedef struct H5EA_hdr_t {
     /* Index block information (stored in header) */
     haddr_t idx_blk_addr;               /* Address of index block in header */
 
-    /* Statistics for array (stored in header) */
+    /* Statistics for array (stored in index block, actually) */
     /* (header and index number/size fields not stored) */
     H5EA_stat_t stats;                  /* Statistics for extensible array */
 
@@ -640,7 +640,7 @@ H5_DLL herr_t H5EA__hdr_dest(H5EA_hdr_t *hdr);
 /* Index block routines */
 H5_DLL H5EA_iblock_t *H5EA__iblock_alloc(H5EA_hdr_t *hdr);
 H5_DLL haddr_t H5EA__iblock_create(H5EA_hdr_t *hdr, hid_t dxpl_id,
-    hbool_t *hdr_dirty);
+    hbool_t *stats_changed);
 H5_DLL H5EA_iblock_t *H5EA__iblock_protect(H5EA_hdr_t *hdr, hid_t dxpl_id,
     H5AC_protect_t rw);
 H5_DLL herr_t H5EA__iblock_unprotect(H5EA_iblock_t *iblock, hid_t dxpl_id,
@@ -650,8 +650,8 @@ H5_DLL herr_t H5EA__iblock_dest(H5F_t *f, H5EA_iblock_t *iblock);
 
 /* Super block routines */
 H5_DLL H5EA_sblock_t *H5EA__sblock_alloc(H5EA_hdr_t *hdr, unsigned sblk_idx);
-H5_DLL haddr_t H5EA__sblock_create(H5EA_hdr_t *hdr, hid_t dxpl_id, hbool_t *hdr_dirty,
-    unsigned sblk_idx);
+H5_DLL haddr_t H5EA__sblock_create(H5EA_hdr_t *hdr, hid_t dxpl_id,
+    hbool_t *stats_changed, unsigned sblk_idx);
 H5_DLL H5EA_sblock_t *H5EA__sblock_protect(H5EA_hdr_t *hdr, hid_t dxpl_id,
     haddr_t sblk_addr, unsigned sblk_idx, H5AC_protect_t rw);
 H5_DLL herr_t H5EA__sblock_unprotect(H5EA_sblock_t *sblock, hid_t dxpl_id,
@@ -662,8 +662,8 @@ H5_DLL herr_t H5EA__sblock_dest(H5F_t *f, H5EA_sblock_t *sblock);
 
 /* Data block routines */
 H5_DLL H5EA_dblock_t *H5EA__dblock_alloc(H5EA_hdr_t *hdr, size_t nelmts);
-H5_DLL haddr_t H5EA__dblock_create(H5EA_hdr_t *hdr, hid_t dxpl_id, hbool_t *hdr_dirty,
-    hsize_t dblk_off, size_t nelmts);
+H5_DLL haddr_t H5EA__dblock_create(H5EA_hdr_t *hdr, hid_t dxpl_id,
+    hbool_t *stats_changed, hsize_t dblk_off, size_t nelmts);
 H5_DLL unsigned H5EA__dblock_sblk_idx(const H5EA_hdr_t *hdr, hsize_t idx);
 H5_DLL H5EA_dblock_t *H5EA__dblock_protect(H5EA_hdr_t *hdr, hid_t dxpl_id,
     haddr_t dblk_addr, size_t dblk_nelmts, H5AC_protect_t rw);
diff --git a/src/H5EAprivate.h b/src/H5EAprivate.h
index f44d046..9e3fa48 100644
--- a/src/H5EAprivate.h
+++ b/src/H5EAprivate.h
@@ -82,19 +82,26 @@ typedef struct H5EA_create_t {
 } H5EA_create_t;
 
 /* Extensible array metadata statistics info */
+/* (If these are ever exposed to applications, don't let the application see
+ *      which fields are computed vs. which fields are stored. -QAK)
+ */
 typedef struct H5EA_stat_t {
     /* Non-stored (i.e. computed) fields */
-    hsize_t hdr_size;           /* Size of header */
-    hsize_t nindex_blks;        /* # of index blocks (should be 0 or 1) */
-    hsize_t index_blk_size;     /* Size of index blocks allocated */
+    struct {
+        hsize_t hdr_size;           /* Size of header */
+        hsize_t nindex_blks;        /* # of index blocks (should be 0 or 1) */
+        hsize_t index_blk_size;     /* Size of index blocks allocated */
+    } computed;
 
     /* Stored fields */
-    hsize_t nsuper_blks;        /* # of super blocks */
-    hsize_t super_blk_size;     /* Size of super blocks allocated */
-    hsize_t ndata_blks;         /* # of data blocks */
-    hsize_t data_blk_size;      /* Size of data blocks allocated */
-    hsize_t max_idx_set;        /* Highest element index stored (+1 - i.e. if element 0 has been set, this value with be '1', if no elements have been stored, this value will be '0') */
-    hsize_t nelmts;             /* # of elements "realized" */
+    struct {
+        hsize_t nsuper_blks;        /* # of super blocks */
+        hsize_t super_blk_size;     /* Size of super blocks allocated */
+        hsize_t ndata_blks;         /* # of data blocks */
+        hsize_t data_blk_size;      /* Size of data blocks allocated */
+        hsize_t max_idx_set;        /* Highest element index stored (+1 - i.e. if element 0 has been set, this value with be '1', if no elements have been stored, this value will be '0') */
+        hsize_t nelmts;             /* # of elements "realized" */
+    } stored;
 } H5EA_stat_t;
 
 /* Extensible array info (forward decl - defined in H5EApkg.h) */
diff --git a/src/H5EAsblock.c b/src/H5EAsblock.c
index 3cb97a9..157d1aa 100644
--- a/src/H5EAsblock.c
+++ b/src/H5EAsblock.c
@@ -190,7 +190,7 @@ END_FUNC(PKG)   /* end H5EA__sblock_alloc() */
  */
 BEGIN_FUNC(PKG, ERR,
 haddr_t, HADDR_UNDEF, HADDR_UNDEF,
-H5EA__sblock_create(H5EA_hdr_t *hdr, hid_t dxpl_id, hbool_t *hdr_dirty,
+H5EA__sblock_create(H5EA_hdr_t *hdr, hid_t dxpl_id, hbool_t *stats_changed,
     unsigned sblk_idx))
 
     /* Local variables */
@@ -204,7 +204,7 @@ HDfprintf(stderr, "%s: Called\n", FUNC);
 
     /* Sanity check */
     HDassert(hdr);
-    HDassert(hdr_dirty);
+    HDassert(stats_changed);
 
     /* Allocate the super block */
     if(NULL == (sblock = H5EA__sblock_alloc(hdr, sblk_idx)))
@@ -235,11 +235,11 @@ HDfprintf(stderr, "%s: sblock->block_off = %Hu\n", FUNC, sblock->block_off);
 	H5E_THROW(H5E_CANTINSERT, "can't add extensible array super block to cache")
 
     /* Update extensible array super block statistics */
-    hdr->stats.nsuper_blks++;
-    hdr->stats.super_blk_size += sblock->size;
+    hdr->stats.stored.nsuper_blks++;
+    hdr->stats.stored.super_blk_size += sblock->size;
 
-    /* Mark the header dirty (for updating statistics) */
-    *hdr_dirty = TRUE;
+    /* Mark the statistics as changed */
+    *stats_changed = TRUE;
 
     /* Set address of super block to return */
     ret_value = sblock_addr;