This function ensures the argument is the mount point
(i.e. if it's not, it bind mounts it to itself).
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
(cherry picked from commit 8abadb36fa8149cd44e76b0e7fdedd6f1f2eccd0)
Upstream-commit: 2199ada691dc635cac5cdd065d909a539dd0b793
Component: engine