768 static inline int check_mnt(struct mount *mnt)  in check_mnt()  function
1661 	if (!check_mnt(mnt))  in ksys_umount()
1791 	if (!check_mnt(real_mount(path->mnt)))  in collect_mounts()
1843 	if (!check_mnt(old_mnt))  in clone_private_mount()
2207 	if (!check_mnt(parent))  in do_loopback()
2210 	if (!check_mnt(old) && old_path.dentry->d_op != &ns_dentry_operations)  in do_loopback()
2270 	if (!check_mnt(mnt))  in do_remount()
2357 	if (!check_mnt(p) || !check_mnt(old))  in do_move_mount()
2445 	if (unlikely(!check_mnt(parent))) {  in do_add_mount()
3145 	if (!check_mnt(root_mnt) || !check_mnt(new_mnt))  in SYSCALL_DEFINE2()
3306 	return check_mnt(real_mount(mnt));  in our_mnt()
3428 	return !(mnt->mnt_flags & MNT_NOSUID) && check_mnt(real_mount(mnt)) &&  in mnt_may_suid()