476 static void detach_mnt(struct vfsmount *mnt, struct path *old_path)  in detach_mnt()  argument
478 	old_path->dentry = mnt->mnt_mountpoint;  in detach_mnt()
479 	old_path->mnt = mnt->mnt_parent;  in detach_mnt()
484 	old_path->dentry->d_mounted--;  in detach_mnt()
1467 	struct path old_path;  in do_loopback()  local
1474 	err = kern_path(old_name, LOOKUP_FOLLOW, &old_path);  in do_loopback()
1480 	if (IS_MNT_UNBINDABLE(old_path.mnt))  in do_loopback()
1483 	if (!check_mnt(path->mnt) || !check_mnt(old_path.mnt))  in do_loopback()
1488 		mnt = copy_tree(old_path.mnt, old_path.dentry, 0);  in do_loopback()
1490 		mnt = clone_mnt(old_path.mnt, old_path.dentry, 0);  in do_loopback()
1506 	path_put(&old_path);  in do_loopback()
1577 	struct path old_path, parent_path;  in do_move_mount()  local
1584 	err = kern_path(old_name, LOOKUP_FOLLOW, &old_path);  in do_move_mount()
1593 	if (!check_mnt(path->mnt) || !check_mnt(old_path.mnt))  in do_move_mount()
1605 	if (old_path.dentry != old_path.mnt->mnt_root)  in do_move_mount()
1608 	if (old_path.mnt == old_path.mnt->mnt_parent)  in do_move_mount()
1612 	      S_ISDIR(old_path.dentry->d_inode->i_mode))  in do_move_mount()
1617 	if (old_path.mnt->mnt_parent &&  in do_move_mount()
1618 	    IS_MNT_SHARED(old_path.mnt->mnt_parent))  in do_move_mount()
1625 	    tree_contains_unbindable(old_path.mnt))  in do_move_mount()
1629 		if (p == old_path.mnt)  in do_move_mount()
1632 	err = attach_recursive_mnt(old_path.mnt, path, &parent_path);  in do_move_mount()
1638 	list_del_init(&old_path.mnt->mnt_expire);  in do_move_mount()
1645 	path_put(&old_path);  in do_move_mount()