From: Miao Xie <miaox@cn.fujitsu.com>
Date: Fri, 16 Nov 2012 09:23:50 +0000 (+0800)
Subject: vfs, freeze: use ACCESS_ONCE() to guard access to ->mnt_flags
X-Git-Tag: v3.8-rc1~13^2~56
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1e75529e3c6c18dc535f38454173c4f2dfa99685;p=pandora-kernel.git

vfs, freeze: use ACCESS_ONCE() to guard access to ->mnt_flags

The compiler may optimize the while loop and make the check just be done once,
so we should use ACCESS_ONCE() to guard access to ->mnt_flags

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

Reading git-diff-tree failed