Updated the H5FS cache code to grab the correct tag and modified

the freespace test to use dxpls that have been tagged with
the H5AC__FREESPACE_TAG global tag instead of H5AC_ind_read_dxpl_id.
The library code now expects the owner of the free space manager
to tag it so the owner-less free space managers in the freespace
tag had to be tagged with *something* to avoid cache errors.

1 files changed, 31 insertions, 0 deletions

diff --git a/src/H5Ctag.c b/src/H5Ctag.c
index 3920475..157a838 100644
--- a/src/H5Ctag.c
+++ b/src/H5Ctag.c
@@ -839,3 +839,34 @@ done:
     FUNC_LEAVE_NOAPI(ret_value)
 } /* H5C_expunge_tag_type_metadata() */
 
+
+/*-------------------------------------------------------------------------
+ *
+ * Function:    H5C_get_tag()
+ *
+ * Purpose:     Get the tag for a metadata cache entry.
+ *
+ * Return:      SUCCEED (can't fail)
+ *
+ * Programmer:  Dana Robinson
+ *              Fall 2016
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t 
+H5C_get_tag(const void *thing, haddr_t *tag /*OUT*/)
+{
+    const H5C_cache_entry_t *entry = (const H5C_cache_entry_t *)thing;  /* Pointer to cache entry */
+
+    FUNC_ENTER_NOAPI_NOERR
+
+    HDassert(entry);
+    HDassert(entry->tag_info);
+    HDassert(tag);
+
+    /* Return the tag */
+    *tag = entry->tag_info->tag;
+
+    FUNC_LEAVE_NOAPI(SUCCEED)
+} /* H5C_get_tag() */
+