1030 static struct mount *clone_mnt(struct mount *old, struct dentry *root,  in clone_mnt()  argument
1033 	struct super_block *sb = old->mnt.mnt_sb;  in clone_mnt()
1037 	mnt = alloc_vfsmnt(old->mnt_devname);  in clone_mnt()
1042 		mnt->mnt.data = sb->s_op->clone_mnt_data(old->mnt.data);  in clone_mnt()
1052 		mnt->mnt_group_id = old->mnt_group_id;  in clone_mnt()
1060 	mnt->mnt.mnt_flags = old->mnt.mnt_flags;  in clone_mnt()
1073 	    ((flag & CL_SHARED_TO_SLAVE) && IS_MNT_SHARED(old))) {  in clone_mnt()
1074 		list_add(&mnt->mnt_slave, &old->mnt_slave_list);  in clone_mnt()
1075 		mnt->mnt_master = old;  in clone_mnt()
1078 		if ((flag & CL_MAKE_SHARED) || IS_MNT_SHARED(old))  in clone_mnt()
1079 			list_add(&mnt->mnt_share, &old->mnt_share);  in clone_mnt()
1080 		if (IS_MNT_SLAVE(old))  in clone_mnt()
1081 			list_add(&mnt->mnt_slave, &old->mnt_slave);  in clone_mnt()
1082 		mnt->mnt_master = old->mnt_master;  in clone_mnt()
1092 		if (!list_empty(&old->mnt_expire))  in clone_mnt()
1093 			list_add(&mnt->mnt_expire, &old->mnt_expire);  in clone_mnt()
1980 	unsigned int mounts = 0, old, pending, sum;  in count_mounts()  local
1986 	old = ns->mounts;  in count_mounts()
1988 	sum = old + pending;  in count_mounts()
1989 	if ((old > sum) ||  in count_mounts()
2271 	struct mount *mnt = ERR_PTR(-EINVAL), *old = real_mount(old_path->mnt);  in __do_loopback()  local
2273 	if (IS_MNT_UNBINDABLE(old))  in __do_loopback()
2276 	if (!check_mnt(old) && old_path->dentry->d_op != &ns_dentry_operations)  in __do_loopback()
2279 	if (!recurse && has_locked_children(old, old_path->dentry))  in __do_loopback()
2283 		mnt = copy_tree(old, old_path->dentry, CL_COPY_MNT_NS_FILE);  in __do_loopback()
2285 		mnt = clone_mnt(old, old_path->dentry, 0);  in __do_loopback()
2632 	struct mount *old;  in do_move_mount()  local
2642 	old = real_mount(old_path->mnt);  in do_move_mount()
2644 	parent = old->mnt_parent;  in do_move_mount()
2645 	attached = mnt_has_parent(old);  in do_move_mount()
2646 	old_mp = old->mnt_mp;  in do_move_mount()
2647 	ns = old->mnt_ns;  in do_move_mount()
2655 	if (!is_mounted(&old->mnt))  in do_move_mount()
2659 	if (!(attached ? check_mnt(old) : is_anon_ns(ns)))  in do_move_mount()
2662 	if (old->mnt.mnt_flags & MNT_LOCKED)  in do_move_mount()
2680 	if (IS_MNT_SHARED(p) && tree_contains_unbindable(old))  in do_move_mount()
2683 	if (!check_for_nsfs_mounts(old))  in do_move_mount()
2686 		if (p == old)  in do_move_mount()
2689 	err = attach_recursive_mnt(old, real_mount(new_path->mnt), mp,  in do_move_mount()
2696 	list_del_init(&old->mnt_expire);  in do_move_mount()
3248 	struct mount *old;  in copy_mnt_ns()  local
3259 	old = ns->root;  in copy_mnt_ns()
3270 	new = copy_tree(old, old->mnt.mnt_root, copy_flags);  in copy_mnt_ns()
3289 	p = old;  in copy_mnt_ns()
3304 		p = next_mnt(p, old);  in copy_mnt_ns()
3309 			p = next_mnt(p, old);  in copy_mnt_ns()
3649 	struct path new, old, root;  in SYSCALL_DEFINE2()  local
3663 			     LOOKUP_FOLLOW | LOOKUP_DIRECTORY, &old);  in SYSCALL_DEFINE2()
3667 	error = security_sb_pivotroot(&old, &new);  in SYSCALL_DEFINE2()
3672 	old_mp = lock_mount(&old);  in SYSCALL_DEFINE2()
3680 	old_mnt = real_mount(old.mnt);  in SYSCALL_DEFINE2()
3707 	if (!is_path_reachable(old_mnt, old.dentry, &new))  in SYSCALL_DEFINE2()
3738 	path_put(&old);  in SYSCALL_DEFINE2()