2263 	struct mnt_namespace *new_ns;  in alloc_mnt_ns()  local
2266 	new_ns = kmalloc(sizeof(struct mnt_namespace), GFP_KERNEL);  in alloc_mnt_ns()
2267 	if (!new_ns)  in alloc_mnt_ns()
2269 	ret = proc_alloc_inum(&new_ns->proc_inum);  in alloc_mnt_ns()
2271 		kfree(new_ns);  in alloc_mnt_ns()
2274 	new_ns->seq = atomic64_add_return(1, &mnt_ns_seq);  in alloc_mnt_ns()
2275 	atomic_set(&new_ns->count, 1);  in alloc_mnt_ns()
2276 	new_ns->root = NULL;  in alloc_mnt_ns()
2277 	INIT_LIST_HEAD(&new_ns->list);  in alloc_mnt_ns()
2278 	init_waitqueue_head(&new_ns->poll);  in alloc_mnt_ns()
2279 	new_ns->event = 0;  in alloc_mnt_ns()
2280 	new_ns->user_ns = get_user_ns(user_ns);  in alloc_mnt_ns()
2281 	return new_ns;  in alloc_mnt_ns()
2291 	struct mnt_namespace *new_ns;  in dup_mnt_ns()  local
2298 	new_ns = alloc_mnt_ns(user_ns);  in dup_mnt_ns()
2299 	if (IS_ERR(new_ns))  in dup_mnt_ns()
2300 		return new_ns;  in dup_mnt_ns()
2310 		free_mnt_ns(new_ns);  in dup_mnt_ns()
2313 	new_ns->root = new;  in dup_mnt_ns()
2315 	list_add_tail(&new_ns->list, &new->mnt_list);  in dup_mnt_ns()
2326 		q->mnt_ns = new_ns;  in dup_mnt_ns()
2347 	return new_ns;  in dup_mnt_ns()
2353 	struct mnt_namespace *new_ns;  in copy_mnt_ns()  local
2361 	new_ns = dup_mnt_ns(ns, user_ns, new_fs);  in copy_mnt_ns()
2364 	return new_ns;  in copy_mnt_ns()
2373 	struct mnt_namespace *new_ns = alloc_mnt_ns(&init_user_ns);  in create_mnt_ns()  local
2374 	if (!IS_ERR(new_ns)) {  in create_mnt_ns()
2376 		mnt->mnt_ns = new_ns;  in create_mnt_ns()
2377 		new_ns->root = mnt;  in create_mnt_ns()
2378 		list_add(&new_ns->list, &mnt->mnt_list);  in create_mnt_ns()
2382 	return new_ns;  in create_mnt_ns()