From: Gavin Shan <shangw@linux.vnet.ibm.com>
Date: Fri, 7 Sep 2012 22:44:06 +0000 (+0000)
Subject: powerpc/eeh: Introduce global mutex
X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~10^2~66
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=646a8499403e049845dda3141ec1ac021f029f11;p=pandora-kernel.git

powerpc/eeh: Introduce global mutex

The patch introduces global mutex for EEH so that the core data
structures can be protected by that. Also, 2 inline functions
are exported for that: eeh_lock() and eeh_unlock().

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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