From: Pavel Begunkov <asml.silence@gmail.com>
Date: Wed, 22 Jan 2020 20:09:36 +0000 (+0300)
Subject: io_uring: honor IOSQE_ASYNC for linked reqs
X-Git-Tag: v5.6-rc1~123^2~13
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=86a761f81ec87a96572214f5db606f60d36aaf08;p=thirdparty%2Flinux.git

io_uring: honor IOSQE_ASYNC for linked reqs

REQ_F_FORCE_ASYNC is checked only for the head of a link. Fix it.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/fs/io_uring.c b/fs/io_uring.c
index cdbc711ae5fd7..9f73586dcfb87 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -4512,6 +4512,7 @@ again:
 	 */
 	if (ret == -EAGAIN && (!(req->flags & REQ_F_NOWAIT) ||
 	    (req->flags & REQ_F_MUST_PUNT))) {
+punt:
 		if (req->work.flags & IO_WQ_WORK_NEEDS_FILES) {
 			ret = io_grab_files(req);
 			if (ret)
@@ -4547,6 +4548,9 @@ done_req:
 	if (nxt) {
 		req = nxt;
 		nxt = NULL;
+
+		if (req->flags & REQ_F_FORCE_ASYNC)
+			goto punt;
 		goto again;
 	}
 }