From: Cody P Schafer <cody@linux.vnet.ibm.com>
Date: Wed, 3 Jul 2013 22:01:32 +0000 (-0700)
Subject: mm/page_alloc: protect pcp->batch accesses with ACCESS_ONCE
X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~17^2~401
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=998d39cb236fe464af86a3492a24d2f67ee1efc2;p=pandora-kernel.git

mm/page_alloc: protect pcp->batch accesses with ACCESS_ONCE

pcp->batch could change at any point, avoid relying on it being a stable
value.

Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: Gilad Ben-Yossef <gilad@benyossef.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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