From: Joonsoo Kim <js1304@gmail.com>
Date: Fri, 7 Sep 2012 00:17:44 +0000 (+1000)
Subject: slab: fix starting index for finding another object
X-Git-Tag: next-20120907~1^2~240
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=3c4a69a9783f05e6f26b78382742f1e6dcab9b28;p=karo-tx-linux.git

slab: fix starting index for finding another object

In array cache, there is a object at index 0, check it.

Signed-off-by: Joonsoo Kim <js1304@gmail.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: David Miller <davem@davemloft.net>
Cc: Chuck Lever <chuck.lever@oracle.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/slab.c b/mm/slab.c
index a32609d3f72e..9a91049f02bc 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -976,7 +976,7 @@ static void *__ac_get_obj(struct kmem_cache *cachep, struct array_cache *ac,
 		}
 
 		/* The caller cannot use PFMEMALLOC objects, find another one */
-		for (i = 1; i < ac->avail; i++) {
+		for (i = 0; i < ac->avail; i++) {
 			/* If a !PFMEMALLOC object is found, swap them */
 			if (!is_obj_pfmemalloc(ac->entry[i])) {
 				objp = ac->entry[i];