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Eric W. Biederman authored
For future use factor out a function umount_mnt from umount_tree. This function unhashes a mount and remembers where the mount was mounted so that eventually when the code makes it to a sleeping context the mountpoint can be dput. Cc: stable@vger.kernel.org Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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