850 static inline int check_mnt(struct mount *mnt)  in check_mnt()  function
1785 	if (!check_mnt(mnt))  in can_umount()
1946 	if (!check_mnt(real_mount(path->mnt)))  in collect_mounts()
2020 	if (!check_mnt(old_mnt))  in clone_private_mount()
2399 	if (!check_mnt(old) && old_path->dentry->d_op != &ns_dentry_operations)  in __do_loopback()
2443 	if (!check_mnt(parent))  in do_loopback()
2644 	if (!check_mnt(mnt))  in do_reconfigure_mnt()
2683 	if (!check_mnt(mnt))  in do_remount()
2845 	if (!check_mnt(p))  in do_move_mount()
2853 	if (!(attached ? check_mnt(old) : is_anon_ns(ns)))  in do_move_mount()
2931 	if (unlikely(!check_mnt(parent))) {  in do_add_mount()
3909 	if (!check_mnt(root_mnt) || !check_mnt(new_mnt))  in SYSCALL_DEFINE2()
4167 	if (!(mnt_has_parent(mnt) ? check_mnt(mnt) : is_anon_ns(mnt->mnt_ns)))  in do_mount_setattr()
4490 	return check_mnt(real_mount(mnt));  in our_mnt()
4618 	return !(mnt->mnt_flags & MNT_NOSUID) && check_mnt(real_mount(mnt)) &&  in mnt_may_suid()