From 795134891e85e6d445a25318ed4f03da9f3dc8f3 Mon Sep 17 00:00:00 2001
From: Ben Walker <benjamin.walker@intel.com>
Date: Thu, 25 Apr 2019 11:49:43 -0700
Subject: [PATCH] blob: Don't reallocate cluster array if it didn't change
 size.

Other threads are referring to this memory.

Change-Id: I9689a1b64a1f032ad479ec85095d2575dcab3a7f
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/452130
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
---
 lib/blob/blobstore.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/blob/blobstore.c b/lib/blob/blobstore.c
index ccab4e3fae..7f4f22667f 100644
--- a/lib/blob/blobstore.c
+++ b/lib/blob/blobstore.c
@@ -1128,7 +1128,7 @@ _spdk_blob_persist_clear_clusters_cpl(spdk_bs_sequence_t *seq, void *cb_arg, int
 		free(blob->active.clusters);
 		blob->active.clusters = NULL;
 		blob->active.cluster_array_size = 0;
-	} else {
+	} else if (blob->active.num_clusters != blob->active.cluster_array_size) {
 		tmp = realloc(blob->active.clusters, sizeof(uint64_t) * blob->active.num_clusters);
 		assert(tmp != NULL);
 		blob->active.clusters = tmp;