From: Scott Wood <scottwood@freescale.com>
Date: Thu, 21 Mar 2013 00:06:12 +0000 (-0500)
Subject: powerpc/mm/nohash: Ignore NULL stale_map entries
X-Git-Tag: v3.11-rc1~94^2~133
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=39a421ff0b7cb056e687894a9d5f57aa1303e1c8;p=pandora-kernel.git

powerpc/mm/nohash: Ignore NULL stale_map entries

This happens with threads that are offline due to CPU hotplug
(including threads that were never "plugged in" to begin with because
SMT is disabled).

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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