1054 static struct mount *clone_mnt(struct mount *old, struct dentry *root,  in clone_mnt()  argument
1057 	struct super_block *sb = old->mnt.mnt_sb;  in clone_mnt()
1061 	mnt = alloc_vfsmnt(old->mnt_devname);  in clone_mnt()
1068 		mnt->mnt_group_id = old->mnt_group_id;  in clone_mnt()
1076 	mnt->mnt.mnt_flags = old->mnt.mnt_flags;  in clone_mnt()
1080 	mnt->mnt.mnt_userns = mnt_user_ns(&old->mnt);  in clone_mnt()
1092 	    ((flag & CL_SHARED_TO_SLAVE) && IS_MNT_SHARED(old))) {  in clone_mnt()
1093 		list_add(&mnt->mnt_slave, &old->mnt_slave_list);  in clone_mnt()
1094 		mnt->mnt_master = old;  in clone_mnt()
1097 		if ((flag & CL_MAKE_SHARED) || IS_MNT_SHARED(old))  in clone_mnt()
1098 			list_add(&mnt->mnt_share, &old->mnt_share);  in clone_mnt()
1099 		if (IS_MNT_SLAVE(old))  in clone_mnt()
1100 			list_add(&mnt->mnt_slave, &old->mnt_slave);  in clone_mnt()
1101 		mnt->mnt_master = old->mnt_master;  in clone_mnt()
1111 		if (!list_empty(&old->mnt_expire))  in clone_mnt()
1112 			list_add(&mnt->mnt_expire, &old->mnt_expire);  in clone_mnt()
2072 	unsigned int mounts = 0, old, pending, sum;  in count_mounts()  local
2078 	old = ns->mounts;  in count_mounts()
2080 	sum = old + pending;  in count_mounts()
2081 	if ((old > sum) ||  in count_mounts()
2350 	struct mount *mnt = ERR_PTR(-EINVAL), *old = real_mount(old_path->mnt);  in __do_loopback()  local
2352 	if (IS_MNT_UNBINDABLE(old))  in __do_loopback()
2355 	if (!check_mnt(old) && old_path->dentry->d_op != &ns_dentry_operations)  in __do_loopback()
2358 	if (!recurse && has_locked_children(old, old_path->dentry))  in __do_loopback()
2362 		mnt = copy_tree(old, old_path->dentry, CL_COPY_MNT_NS_FILE);  in __do_loopback()
2364 		mnt = clone_mnt(old, old_path->dentry, 0);  in __do_loopback()
2785 	struct mount *old;  in do_move_mount()  local
2795 	old = real_mount(old_path->mnt);  in do_move_mount()
2797 	parent = old->mnt_parent;  in do_move_mount()
2798 	attached = mnt_has_parent(old);  in do_move_mount()
2799 	old_mp = old->mnt_mp;  in do_move_mount()
2800 	ns = old->mnt_ns;  in do_move_mount()
2808 	if (!is_mounted(&old->mnt))  in do_move_mount()
2812 	if (!(attached ? check_mnt(old) : is_anon_ns(ns)))  in do_move_mount()
2815 	if (old->mnt.mnt_flags & MNT_LOCKED)  in do_move_mount()
2833 	if (IS_MNT_SHARED(p) && tree_contains_unbindable(old))  in do_move_mount()
2836 	if (!check_for_nsfs_mounts(old))  in do_move_mount()
2839 		if (p == old)  in do_move_mount()
2842 	err = attach_recursive_mnt(old, real_mount(new_path->mnt), mp,  in do_move_mount()
2849 	list_del_init(&old->mnt_expire);  in do_move_mount()
3423 	struct mount *old;  in copy_mnt_ns()  local
3434 	old = ns->root;  in copy_mnt_ns()
3445 	new = copy_tree(old, old->mnt.mnt_root, copy_flags);  in copy_mnt_ns()
3464 	p = old;  in copy_mnt_ns()
3479 		p = next_mnt(p, old);  in copy_mnt_ns()
3484 			p = next_mnt(p, old);  in copy_mnt_ns()
3836 	struct path new, old, root;  in SYSCALL_DEFINE2()  local
3850 			     LOOKUP_FOLLOW | LOOKUP_DIRECTORY, &old);  in SYSCALL_DEFINE2()
3854 	error = security_sb_pivotroot(&old, &new);  in SYSCALL_DEFINE2()
3859 	old_mp = lock_mount(&old);  in SYSCALL_DEFINE2()
3867 	old_mnt = real_mount(old.mnt);  in SYSCALL_DEFINE2()
3894 	if (!is_path_reachable(old_mnt, old.dentry, &new))  in SYSCALL_DEFINE2()
3925 	path_put(&old);  in SYSCALL_DEFINE2()