2823 	struct mnt_namespace *new_ns;  in alloc_mnt_ns()  local
2831 	new_ns = kmalloc(sizeof(struct mnt_namespace), GFP_KERNEL);  in alloc_mnt_ns()
2832 	if (!new_ns) {  in alloc_mnt_ns()
2836 	ret = ns_alloc_inum(&new_ns->ns);  in alloc_mnt_ns()
2838 		kfree(new_ns);  in alloc_mnt_ns()
2842 	new_ns->ns.ops = &mntns_operations;  in alloc_mnt_ns()
2843 	new_ns->seq = atomic64_add_return(1, &mnt_ns_seq);  in alloc_mnt_ns()
2844 	atomic_set(&new_ns->count, 1);  in alloc_mnt_ns()
2845 	new_ns->root = NULL;  in alloc_mnt_ns()
2846 	INIT_LIST_HEAD(&new_ns->list);  in alloc_mnt_ns()
2847 	init_waitqueue_head(&new_ns->poll);  in alloc_mnt_ns()
2848 	new_ns->event = 0;  in alloc_mnt_ns()
2849 	new_ns->user_ns = get_user_ns(user_ns);  in alloc_mnt_ns()
2850 	new_ns->ucounts = ucounts;  in alloc_mnt_ns()
2851 	new_ns->mounts = 0;  in alloc_mnt_ns()
2852 	new_ns->pending_mounts = 0;  in alloc_mnt_ns()
2853 	return new_ns;  in alloc_mnt_ns()
2860 	struct mnt_namespace *new_ns;  in copy_mnt_ns()  local
2876 	new_ns = alloc_mnt_ns(user_ns);  in copy_mnt_ns()
2877 	if (IS_ERR(new_ns))  in copy_mnt_ns()
2878 		return new_ns;  in copy_mnt_ns()
2888 		free_mnt_ns(new_ns);  in copy_mnt_ns()
2891 	new_ns->root = new;  in copy_mnt_ns()
2892 	list_add_tail(&new_ns->list, &new->mnt_list);  in copy_mnt_ns()
2902 		q->mnt_ns = new_ns;  in copy_mnt_ns()
2903 		new_ns->mounts++;  in copy_mnt_ns()
2928 	return new_ns;  in copy_mnt_ns()
2937 	struct mnt_namespace *new_ns = alloc_mnt_ns(&init_user_ns);  in create_mnt_ns()  local
2938 	if (!IS_ERR(new_ns)) {  in create_mnt_ns()
2940 		mnt->mnt_ns = new_ns;  in create_mnt_ns()
2941 		new_ns->root = mnt;  in create_mnt_ns()
2942 		new_ns->mounts++;  in create_mnt_ns()
2943 		list_add(&mnt->mnt_list, &new_ns->list);  in create_mnt_ns()
2947 	return new_ns;  in create_mnt_ns()