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(parent: f01af9f) | patch
vfs, freeze: use ACCESS_ONCE() to guard access to ->mnt_flags
authorMiao Xie <miaox@cn.fujitsu.com>
Fri, 16 Nov 2012 09:23:50 +0000 (17:23 +0800)
committerAl Viro <viro@zeniv.linux.org.uk>
Thu, 20 Dec 2012 18:36:18 +0000 (13:36 -0500)
commit1e75529e3c6c18dc535f38454173c4f2dfa99685
treee875baa006457bdffd536fe97fffe03078c91c4ftree | snapshot
parentf01af9f85855e38fbd601e033a8eac204cc4cc1ccommit | diff
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>
fs/namespace.c diff | blob | history
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