linux-kernel - [PATCH 2/2] slab: fix starting index for finding another object

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Message-Id: <1345903871-1921-2-git-send-email-js1304@gmail.com>
Date:	Sat, 25 Aug 2012 23:11:11 +0900
From:	Joonsoo Kim <js1304@...il.com>
To:	Pekka Enberg <penberg@...nel.org>
Cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Joonsoo Kim <js1304@...il.com>, Mel Gorman <mgorman@...e.de>,
	Christoph Lameter <cl@...ux-foundation.org>
Subject: [PATCH 2/2] slab: fix starting index for finding another object

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

Signed-off-by: Joonsoo Kim <js1304@...il.com>
Cc: Mel Gorman <mgorman@...e.de>
Cc: Christoph Lameter <cl@...ux-foundation.org>

diff --git a/mm/slab.c b/mm/slab.c
index 45cf59a..eb74bf5 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];
-- 
1.7.9.5

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