Commits
Miao Xie committed 1e75529e3c6
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>