From: Andi Kleen <andi@firstfloor.org>
Date: Wed, 16 Dec 2009 11:20:00 +0000 (+0100)
Subject: HWPOISON: Use new shake_page in memory_failure
X-Git-Tag: v2.6.33-rc1~45^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0474a60ec704324577782b1057d05b574388d552;p=pandora-kernel.git

HWPOISON: Use new shake_page in memory_failure

shake_page handles more types of page caches than
the much simpler lru_add_drain_all:

- slab (quite inefficiently for now)
- any other caches with a shrinker callback
- per cpu page allocator pages
- per CPU LRU

Use this call to try to turn pages into free or LRU pages.
Then handle the case of the page becoming free after drain everything.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
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