From: Pranith Kumar <bobby.prani@gmail.com>
Date: Tue, 28 Oct 2014 22:09:56 +0000 (-0700)
Subject: dm: Use rcu_dereference() for accessing rcu pointer
X-Git-Tag: omap-for-v3.19/fixes-for-merge-window~22^2~30
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=33423974bfc1c61193df765078f0466fece7021e;p=pandora-kernel.git

dm: Use rcu_dereference() for accessing rcu pointer

The map field in 'struct mapped_device' is an rcu pointer. Use rcu_dereference()
while accessing it.

Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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