806 static inline int check_mnt(struct mount *mnt)  in check_mnt()  function
1736 	if (!check_mnt(mnt))  in can_umount()
1897 	if (!check_mnt(real_mount(path->mnt)))  in collect_mounts()
1971 	if (!check_mnt(old_mnt))  in clone_private_mount()
2349 	if (!check_mnt(old) && old_path->dentry->d_op != &ns_dentry_operations)  in __do_loopback()
2393 	if (!check_mnt(parent))  in do_loopback()
2592 	if (!check_mnt(mnt))  in do_reconfigure_mnt()
2631 	if (!check_mnt(mnt))  in do_remount()
2793 	if (!check_mnt(p))  in do_move_mount()
2801 	if (!(attached ? check_mnt(old) : is_anon_ns(ns)))  in do_move_mount()
2879 	if (unlikely(!check_mnt(parent))) {  in do_add_mount()
3857 	if (!check_mnt(root_mnt) || !check_mnt(new_mnt))  in SYSCALL_DEFINE2()
3971 	if (!(mnt_has_parent(m) ? check_mnt(m) : is_anon_ns(m->mnt_ns))) {  in mount_setattr_prepare()
4389 	return check_mnt(real_mount(mnt));  in our_mnt()
4517 	return !(mnt->mnt_flags & MNT_NOSUID) && check_mnt(real_mount(mnt)) &&  in mnt_may_suid()