static void io_poll_flush(struct io_wq_work **workptr)
{
	struct io_kiocb *req = container_of(*workptr, struct io_kiocb, work);
	struct llist_node *nodes;

	nodes = llist_del_all(&req->ctx->poll_llist);
	if (nodes)
		__io_poll_flush(req->ctx, nodes);
}
static void io_poll_flush(struct io_wq_work **workptr)
{
	struct io_kiocb *req = container_of(*workptr, struct io_kiocb, work);
	struct llist_node *nodes;

	nodes = llist_del_all(&req->ctx->poll_llist);
	if (nodes)
		__io_poll_flush(req->ctx, nodes);
}