From 590ce4bcbfb4e0462a720a4ad901e84416080bba Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 22 Dec 2014 18:30:08 -0600 Subject: mnt: Add MNT_UMOUNT flag In some instances it is necessary to know if the the unmounting process has begun on a mount. Add MNT_UMOUNT to make that reliably testable. This fix gets used in fixing locked mounts in MNT_DETACH Cc: stable@vger.kernel.org Signed-off-by: "Eric W. Biederman" --- fs/pnode.c | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/pnode.c') diff --git a/fs/pnode.c b/fs/pnode.c index bf012af709dd..ac3aa0d43b90 100644 --- a/fs/pnode.c +++ b/fs/pnode.c @@ -384,6 +384,7 @@ static void __propagate_umount(struct mount *mnt) if (child && list_empty(&child->mnt_mounts)) { list_del_init(&child->mnt_child); hlist_del_init_rcu(&child->mnt_hash); + child->mnt.mnt_flags |= MNT_UMOUNT; list_move_tail(&child->mnt_list, &mnt->mnt_list); } } -- cgit