static void io_queue_sqe_fallback(struct io_kiocb *req)
	__must_hold(&req->ctx->uring_lock)
{
	if (unlikely(req->flags & REQ_F_FAIL)) {
		/*
		 * We don't submit, fail them all, for that replace hardlinks
		 * with normal links. Extra REQ_F_LINK is tolerated.
		 */
		req->flags &= ~REQ_F_HARDLINK;
		req->flags |= REQ_F_LINK;
		io_req_complete_failed(req, req->cqe.res);
	} else if (unlikely(req->ctx->drain_active)) {
		io_drain_req(req);
	} else {
		int ret = io_req_prep_async(req);

		if (unlikely(ret))
			io_req_complete_failed(req, ret);
		else
			io_queue_iowq(req, NULL);
	}
static void io_queue_sqe_fallback(struct io_kiocb *req)
	__must_hold(&req->ctx->uring_lock)
{
	if (unlikely(req->flags & REQ_F_FAIL)) {
		 
		req->flags &= ~REQ_F_HARDLINK;
		req->flags |= REQ_F_LINK;
		io_req_complete_failed(req, req->cqe.res);
	} else if (unlikely(req->ctx->drain_active)) {
		io_drain_req(req);
	} else {
		int ret = io_req_prep_async(req);

		if (unlikely(ret))
			io_req_complete_failed(req, ret);
		else
			io_queue_iowq(req, NULL);
	}