321 	struct kernfs_root *root = kernfs_root(kn);  in kernfs_put_active()  local
333 	wake_up_all(&root->deactivate_waitq);  in kernfs_put_active()
347 	struct kernfs_root *root = kernfs_root(kn);  in kernfs_drain()  local
361 	wait_event(root->deactivate_waitq,  in kernfs_drain()
396 	struct kernfs_root *root;  in kernfs_put()  local
400 	root = kernfs_root(kn);  in kernfs_put()
424 	ida_simple_remove(&root->ino_ida, kn->ino);  in kernfs_put()
433 		ida_destroy(&root->ino_ida);  in kernfs_put()
434 		kfree(root);  in kernfs_put()
506 static struct kernfs_node *__kernfs_new_node(struct kernfs_root *root,  in __kernfs_new_node()  argument
527 	ret = ida_simple_get(&root->ino_ida, 1, 0,  in __kernfs_new_node()
710 	struct kernfs_root *root;  in kernfs_create_root()  local
713 	root = kzalloc(sizeof(*root), GFP_KERNEL);  in kernfs_create_root()
714 	if (!root)  in kernfs_create_root()
717 	ida_init(&root->ino_ida);  in kernfs_create_root()
718 	INIT_LIST_HEAD(&root->supers);  in kernfs_create_root()
720 	kn = __kernfs_new_node(root, "", S_IFDIR | S_IRUGO | S_IXUGO,  in kernfs_create_root()
723 		ida_destroy(&root->ino_ida);  in kernfs_create_root()
724 		kfree(root);  in kernfs_create_root()
729 	kn->dir.root = root;  in kernfs_create_root()
731 	root->syscall_ops = scops;  in kernfs_create_root()
732 	root->flags = flags;  in kernfs_create_root()
733 	root->kn = kn;  in kernfs_create_root()
734 	init_waitqueue_head(&root->deactivate_waitq);  in kernfs_create_root()
736 	if (!(root->flags & KERNFS_ROOT_CREATE_DEACTIVATED))  in kernfs_create_root()
739 	return root;  in kernfs_create_root()
749 void kernfs_destroy_root(struct kernfs_root *root)  in kernfs_destroy_root()  argument
751 	kernfs_remove(root->kn);	/* will also free @root */  in kernfs_destroy_root()
776 	kn->dir.root = parent->dir.root;  in kernfs_create_dir_ns()
808 	kn->dir.root = parent->dir.root;  in kernfs_create_empty_dir()
970 						       struct kernfs_node *root)  in kernfs_next_descendant_post()  argument
978 		return kernfs_leftmost_descendant(root);  in kernfs_next_descendant_post()
981 	if (pos == root)  in kernfs_next_descendant_post()