From: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Mon, 4 Aug 2014 18:49:34 +0000 (-0700)
Subject: memory-barriers: Retain barrier() in fold-to-zero example
X-Git-Tag: fixes-against-v3.18-rc2~103^2~1^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=efdcd51a4d5bd355796b1a757ff0355bb09ed394;p=pandora-kernel.git

memory-barriers: Retain barrier() in fold-to-zero example

The transformation in the fold-to-zero example incorrectly omits the
barrier() directive.  This commit therefore adds it back in.

Reported-by: Pranith Kumar <pranith@gatech.edu>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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