946 static inline int check_mnt(const struct mount *mnt)  in check_mnt()  function
1938 	if (!check_mnt(mnt))  in do_umount()
2025 	if (!check_mnt(mnt))  in can_umount()
2258 	if (!check_mnt(root))  in collect_paths()
2388 	if (!check_mnt(old_mnt)) {  in clone_private_mount()
2944 	if (check_mnt(mnt))  in may_copy_tree()
3017 	if (!check_mnt(mp.parent))  in do_loopback()
3328 	if (!check_mnt(mnt))  in do_reconfigure_mnt()
3367 	if (!check_mnt(mnt))  in do_remount()
3575 	if (check_mnt(mnt_from) &&  in can_move_mount_beneath()
3616 	if (check_mnt(mnt))  in may_use_mount()
3648 	if (check_mnt(old)) {  in do_move_mount()
3657 		if (!check_mnt(mp.parent))  in do_move_mount()
3732 	if (unlikely(!check_mnt(parent))) {  in do_add_mount()
4658 	if (!check_mnt(root_mnt) || !check_mnt(new_mnt))  in path_pivot_root()
4922 	if (!anon_ns_root(mnt) && !check_mnt(mnt))  in do_mount_setattr()
6288 	return check_mnt(real_mount(mnt));  in our_mnt()
6400 	return !(mnt->mnt_flags & MNT_NOSUID) && check_mnt(real_mount(mnt)) &&  in mnt_may_suid()