2741 	struct mnt_namespace *new_ns;  in alloc_mnt_ns()  local
2744 	new_ns = kmalloc(sizeof(struct mnt_namespace), GFP_KERNEL);  in alloc_mnt_ns()
2745 	if (!new_ns)  in alloc_mnt_ns()
2747 	ret = ns_alloc_inum(&new_ns->ns);  in alloc_mnt_ns()
2749 		kfree(new_ns);  in alloc_mnt_ns()
2752 	new_ns->ns.ops = &mntns_operations;  in alloc_mnt_ns()
2753 	new_ns->seq = atomic64_add_return(1, &mnt_ns_seq);  in alloc_mnt_ns()
2754 	atomic_set(&new_ns->count, 1);  in alloc_mnt_ns()
2755 	new_ns->root = NULL;  in alloc_mnt_ns()
2756 	INIT_LIST_HEAD(&new_ns->list);  in alloc_mnt_ns()
2757 	init_waitqueue_head(&new_ns->poll);  in alloc_mnt_ns()
2758 	new_ns->event = 0;  in alloc_mnt_ns()
2759 	new_ns->user_ns = get_user_ns(user_ns);  in alloc_mnt_ns()
2760 	return new_ns;  in alloc_mnt_ns()
2766 	struct mnt_namespace *new_ns;  in copy_mnt_ns()  local
2782 	new_ns = alloc_mnt_ns(user_ns);  in copy_mnt_ns()
2783 	if (IS_ERR(new_ns))  in copy_mnt_ns()
2784 		return new_ns;  in copy_mnt_ns()
2794 		free_mnt_ns(new_ns);  in copy_mnt_ns()
2797 	new_ns->root = new;  in copy_mnt_ns()
2798 	list_add_tail(&new_ns->list, &new->mnt_list);  in copy_mnt_ns()
2808 		q->mnt_ns = new_ns;  in copy_mnt_ns()
2833 	return new_ns;  in copy_mnt_ns()
2842 	struct mnt_namespace *new_ns = alloc_mnt_ns(&init_user_ns);  in create_mnt_ns()  local
2843 	if (!IS_ERR(new_ns)) {  in create_mnt_ns()
2845 		mnt->mnt_ns = new_ns;  in create_mnt_ns()
2846 		new_ns->root = mnt;  in create_mnt_ns()
2847 		list_add(&mnt->mnt_list, &new_ns->list);  in create_mnt_ns()
2851 	return new_ns;  in create_mnt_ns()