From efdcd51a4d5bd355796b1a757ff0355bb09ed394 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Mon, 4 Aug 2014 11:49:34 -0700
Subject: [PATCH] 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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Reading git-format-patch failed