[svn-r6387] Purpose:

    Bug Fix

Description:
    Metadata cache in parallel I/O can cause hangs in applications which
    perform independent I/O on chunked datasets, because the metadata cache
    can attempt to flush out dirty metadata from only a single process, instead
    of collectively from all processes.

Solution:
    Pass a dataset transfer property list down from every API function which
    could possibly trigger metadata I/O.

    Then, split the metadata cache into two sets of entries to allow dirty
    metadata to be set aside when a hash table collision occurs during
    independent I/O.

Platforms tested:
    Tested h5committest {arabica (fortran), eirene (fortran, C++)
        modi4 (parallel, fortran)}

    FreeBSD 4.7 (sleipnir) serial & parallel

Misc. update:
    Updated release_docs/RELEASE

1 files changed, 4 insertions, 4 deletions

diff --git a/src/H5Ostab.c b/src/H5Ostab.c
index bcc70fd..24bba2e 100644
--- a/src/H5Ostab.c
+++ b/src/H5Ostab.c
@@ -24,12 +24,12 @@
 #define PABLO_MASK      H5O_stab_mask
 
 /* PRIVATE PROTOTYPES */
-static void *H5O_stab_decode(H5F_t *f, const uint8_t *p, H5O_shared_t *sh);
+static void *H5O_stab_decode(H5F_t *f, hid_t dxpl_id, const uint8_t *p, H5O_shared_t *sh);
 static herr_t H5O_stab_encode(H5F_t *f, uint8_t *p, const void *_mesg);
 static void *H5O_stab_copy(const void *_mesg, void *_dest);
 static size_t H5O_stab_size(H5F_t *f, const void *_mesg);
 static herr_t H5O_stab_free (void *_mesg);
-static herr_t H5O_stab_debug(H5F_t *f, const void *_mesg,
+static herr_t H5O_stab_debug(H5F_t *f, hid_t dxpl_id, const void *_mesg,
 			     FILE * stream, int indent, int fwidth);
 
 /* This message derives from H5O */
@@ -75,7 +75,7 @@ H5FL_DEFINE_STATIC(H5O_stab_t);
  *-------------------------------------------------------------------------
  */
 static void *
-H5O_stab_decode(H5F_t *f, const uint8_t *p, H5O_shared_t UNUSED *sh)
+H5O_stab_decode(H5F_t *f, hid_t dxpl_id, const uint8_t *p, H5O_shared_t UNUSED *sh)
 {
     H5O_stab_t          *stab=NULL;
     void                *ret_value;     /* Return value */
@@ -315,7 +315,7 @@ done:
  *-------------------------------------------------------------------------
  */
 static herr_t
-H5O_stab_debug(H5F_t UNUSED *f, const void *_mesg, FILE * stream,
+H5O_stab_debug(H5F_t UNUSED *f, hid_t dxpl_id, const void *_mesg, FILE * stream,
 	       int indent, int fwidth)
 {
     const H5O_stab_t       *stab = (const H5O_stab_t *) _mesg;