[svn-r12445] Purpose:

Bug #281

Description:
The previous fix for bug #281 was not safe.  Files got corrupted in
some cases.  Needs a more comprehensive fix for it. Undo the unsafe
fix for now.

Platforms tested:
h5committested.

1 files changed, 5 insertions, 7 deletions

diff --git a/src/H5D.c b/src/H5D.c
index 0fc4168..bc17e49 100644
--- a/src/H5D.c
+++ b/src/H5D.c
@@ -2918,7 +2918,7 @@ H5D_extend (H5D_t *dataset, const hsize_t *size, hid_t dxpl_id)
                 HGOTO_ERROR(H5E_DATASET, H5E_WRITEERROR, FAIL, "unable to update cached chunk indices")
 
 	/* Allocate space for the new parts of the dataset, if appropriate */
-        if(dataset->shared->alloc_time == H5D_ALLOC_TIME_EARLY || IS_H5FD_MPI(dataset->oloc.file))
+        if(dataset->shared->alloc_time == H5D_ALLOC_TIME_EARLY)
             if(H5D_alloc_storage(dataset->oloc.file, dxpl_id, dataset, H5D_ALLOC_EXTEND, TRUE, FALSE) < 0)
                 HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to initialize dataset with fill value")
     } /* end if */
@@ -3092,13 +3092,11 @@ H5D_alloc_storage (H5F_t *f, hid_t dxpl_id, H5D_t *dset/*in,out*/, H5D_time_allo
                     init_space=1;
                 } /* end if */
 
-                /* If (space allocation is set to 'early' or file is opened
-		 *  by parallel mode) and we are extending the dataset,
-		 *  indicate that space should be allocated, so the
-                 *  B-tree gets expanded. -QAK
+                /* If space allocation is set to 'early' and we are extending
+		 * the dataset, indicate that space should be allocated, so the
+                 * B-tree gets expanded. -QAK
                  */
-		if((dset->shared->alloc_time == H5D_ALLOC_TIME_EARLY ||
-			IS_H5FD_MPI(dset->oloc.file)) &&
+		if(dset->shared->alloc_time == H5D_ALLOC_TIME_EARLY &&
 			time_alloc == H5D_ALLOC_EXTEND)
 		{
 		    init_space=1;