[svn-r19139] In line 861, there's no need to allocate data buffer or copy the data because the attribute

structure is shared now.  Only do an assertion check, instead.

Tested the same change for 1.8.5 on jam - simple change.

1 files changed, 3 insertions, 10 deletions

diff --git a/src/H5Oattribute.c b/src/H5Oattribute.c
index 892321a..722ad54 100644
--- a/src/H5Oattribute.c
+++ b/src/H5Oattribute.c
@@ -849,16 +849,9 @@ H5O_attr_write_cb(H5O_t *oh, H5O_mesg_t *mesg/*in,out*/,
         if(NULL == (chk_proxy = H5O_chunk_protect(udata->f, udata->dxpl_id, oh, mesg->chunkno)))
             HGOTO_ERROR(H5E_ATTR, H5E_CANTPROTECT, H5_ITER_ERROR, "unable to load object header chunk")
 
-        /* Allocate storage for the message's data, if necessary */
-        if(NULL == ((H5A_t *)mesg->native)->shared->data)
-            if(NULL == (((H5A_t *)mesg->native)->shared->data = H5FL_BLK_MALLOC(attr_buf, udata->attr->shared->data_size)))
-                HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, H5_ITER_ERROR, "memory allocation failed")
-
-        /* Copy the data into the header message */
-        /* (Needs to occur before updating the shared message, or the hash
-         *      value on the old & new messages will be the same)
-         */
-        HDmemcpy(((H5A_t *)mesg->native)->shared->data, udata->attr->shared->data, udata->attr->shared->data_size);
+        /* No need to allocate data buffer or copy the data because the structure is shared
+         * now.  Only do an assertion check, instead. SLU - 2010/7/28 */
+        HDassert(((H5A_t *)mesg->native)->shared == udata->attr->shared);
 
         /* Mark the message as modified */
         mesg->dirty = TRUE;