Miao Xie 1e75529e3c 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>

2012-12-20 13:36:18 -05:00

68 KiB

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