[PATCH 2/4] io_uring: get rid of raw fill_cqe in io_fail_links

[Pavel Begunkov <asml.silence@gmail.com>]

Replace fill_cqe insside of io_fail_links with tw. The CQE ordering
guarantees rely on the fact that io_uring's tw's are executed in order.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
 fs/io_uring.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 0e04e0997d7d..fff66f4d00c4 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2335,11 +2335,13 @@ static void io_fail_links(struct io_kiocb *req)
 		trace_io_uring_fail_link(req->ctx, req, req->user_data,
 					req->opcode, link);
 
-		if (!ignore_cqes) {
+		if (!ignore_cqes)
 			link->flags &= ~REQ_F_CQE_SKIP;
-			io_fill_cqe_req(link, res, 0);
-		}
-		io_put_req_deferred(link);
+		/*
+		 * linked CQEs should be ordered, we rely on the tw
+		 * infrastructure executing them in the right order
+		 */
+		io_req_tw_queue_complete(link, res);
 		link = nxt;
 	}
 }
-- 
2.35.1