695 	struct mnt_namespace *ns = current->nsproxy->mnt_ns;  in __is_local_mountpoint()  local
703 	list_for_each_entry(mnt, &ns->list, mnt_list) {  in __is_local_mountpoint()
798 static void touch_mnt_namespace(struct mnt_namespace *ns)  in touch_mnt_namespace()  argument
800 	if (ns) {  in touch_mnt_namespace()
801 		ns->event = ++event;  in touch_mnt_namespace()
802 		wake_up_interruptible(&ns->poll);  in touch_mnt_namespace()
809 static void __touch_mnt_namespace(struct mnt_namespace *ns)  in __touch_mnt_namespace()  argument
811 	if (ns && ns->event != event) {  in __touch_mnt_namespace()
812 		ns->event = event;  in __touch_mnt_namespace()
813 		wake_up_interruptible(&ns->poll);  in __touch_mnt_namespace()
1299 	if (p->cached_event == p->ns->event) {  in m_start()
1304 			v = seq_list_next(v, &p->ns->list, &p->cached_index);  in m_start()
1309 	p->cached_event = p->ns->event;  in m_start()
1310 	p->cached_mount = seq_list_start(&p->ns->list, *pos);  in m_start()
1319 	p->cached_mount = seq_list_next(v, &p->ns->list, pos);  in m_next()
1489 		struct mnt_namespace *ns;  in umount_tree()  local
1494 		ns = p->mnt_ns;  in umount_tree()
1495 		if (ns) {  in umount_tree()
1496 			ns->mounts--;  in umount_tree()
1497 			__touch_mnt_namespace(ns);  in umount_tree()
1735 struct mnt_namespace *to_mnt_ns(struct ns_common *ns)  in to_mnt_ns()  argument
1737 	return container_of(ns, struct mnt_namespace, ns);  in to_mnt_ns()
1907 int count_mounts(struct mnt_namespace *ns, struct mount *mnt)  in count_mounts()  argument
1916 	old = ns->mounts;  in count_mounts()
1917 	pending = ns->pending_mounts;  in count_mounts()
1925 	ns->pending_mounts = pending + mounts;  in count_mounts()
1998 	struct mnt_namespace *ns = dest_mnt->mnt_ns;  in attach_recursive_mnt()  local
2013 		err = count_mounts(ns, source_mnt);  in attach_recursive_mnt()
2063 	ns->pending_mounts = 0;  in attach_recursive_mnt()
2842 static struct ucounts *inc_mnt_namespaces(struct user_namespace *ns)  in inc_mnt_namespaces()  argument
2844 	return inc_ucount(ns, current_euid(), UCOUNT_MNT_NAMESPACES);  in inc_mnt_namespaces()
2852 static void free_mnt_ns(struct mnt_namespace *ns)  in free_mnt_ns()  argument
2854 	ns_free_inum(&ns->ns);  in free_mnt_ns()
2855 	dec_mnt_namespaces(ns->ucounts);  in free_mnt_ns()
2856 	put_user_ns(ns->user_ns);  in free_mnt_ns()
2857 	kfree(ns);  in free_mnt_ns()
2884 	ret = ns_alloc_inum(&new_ns->ns);  in alloc_mnt_ns()
2890 	new_ns->ns.ops = &mntns_operations;  in alloc_mnt_ns()
2905 struct mnt_namespace *copy_mnt_ns(unsigned long flags, struct mnt_namespace *ns,  in copy_mnt_ns()  argument
2915 	BUG_ON(!ns);  in copy_mnt_ns()
2918 		get_mnt_ns(ns);  in copy_mnt_ns()
2919 		return ns;  in copy_mnt_ns()
2922 	old = ns->root;  in copy_mnt_ns()
2931 	if (user_ns != ns->user_ns)  in copy_mnt_ns()
3000 	struct mnt_namespace *ns;  in mount_subtree()  local
3005 	ns = create_mnt_ns(mnt);  in mount_subtree()
3006 	if (IS_ERR(ns))  in mount_subtree()
3007 		return ERR_CAST(ns);  in mount_subtree()
3012 	put_mnt_ns(ns);  in mount_subtree()
3213 	struct mnt_namespace *ns;  in init_mount_tree()  local
3225 	ns = create_mnt_ns(mnt);  in init_mount_tree()
3226 	if (IS_ERR(ns))  in init_mount_tree()
3229 	init_task.nsproxy->mnt_ns = ns;  in init_mount_tree()
3230 	get_mnt_ns(ns);  in init_mount_tree()
3280 void put_mnt_ns(struct mnt_namespace *ns)  in put_mnt_ns()  argument
3282 	if (!atomic_dec_and_test(&ns->count))  in put_mnt_ns()
3284 	drop_collected_mounts(&ns->root->mnt);  in put_mnt_ns()
3285 	free_mnt_ns(ns);  in put_mnt_ns()
3343 static bool mnt_already_visible(struct mnt_namespace *ns, struct vfsmount *new,  in mnt_already_visible()  argument
3351 	list_for_each_entry(mnt, &ns->list, mnt_list) {  in mnt_already_visible()
3409 	struct mnt_namespace *ns = current->nsproxy->mnt_ns;  in mount_too_revealing()  local
3412 	if (ns->user_ns == &init_user_ns)  in mount_too_revealing()
3426 	return !mnt_already_visible(ns, mnt, new_mnt_flags);  in mount_too_revealing()
3444 	struct ns_common *ns = NULL;  in mntns_get()  local
3450 		ns = &nsproxy->mnt_ns->ns;  in mntns_get()
3451 		get_mnt_ns(to_mnt_ns(ns));  in mntns_get()
3455 	return ns;  in mntns_get()
3458 static void mntns_put(struct ns_common *ns)  in mntns_put()  argument
3460 	put_mnt_ns(to_mnt_ns(ns));  in mntns_put()
3463 static int mntns_install(struct nsproxy *nsproxy, struct ns_common *ns)  in mntns_install()  argument
3466 	struct mnt_namespace *mnt_ns = to_mnt_ns(ns);  in mntns_install()
3496 static struct user_namespace *mntns_owner(struct ns_common *ns)  in mntns_owner()  argument
3498 	return to_mnt_ns(ns)->user_ns;  in mntns_owner()