From: Andi Kleen <ak@linux.intel.com>
Date: Tue, 28 Sep 2010 05:37:55 +0000 (+0200)
Subject: HWPOISON: Stop shrinking at right page count
X-Git-Tag: v2.6.36-rc8~26^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=47f43e7efadacc627f325aba64c6a547de0926db;p=pandora-kernel.git

HWPOISON: Stop shrinking at right page count

When we call the slab shrinker to free a page we need to stop at
page count one because the caller always holds a single reference, not zero.

This avoids useless looping over slab shrinkers and freeing too much
memory.

Reviewed-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
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