linux-kernel - [PATCH 09/10] io_uring: don't cancel-track common timeouts

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Date:   Fri, 26 Mar 2021 09:51:27 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     io-uring@...r.kernel.org
Cc:     torvalds@...ux-foundation.org, ebiederm@...ssion.com,
        metze@...ba.org, oleg@...hat.com, linux-kernel@...r.kernel.org,
        Pavel Begunkov <asml.silence@...il.com>,
        Jens Axboe <axboe@...nel.dk>
Subject: [PATCH 09/10] io_uring: don't cancel-track common timeouts

From: Pavel Begunkov <asml.silence@...il.com>

Don't account usual timeouts (i.e. not linked) as REQ_F_INFLIGHT but
keep behaviour prior to dd59a3d595cc1 ("io_uring: reliably cancel linked
timeouts").

Signed-off-by: Pavel Begunkov <asml.silence@...il.com>
Link: https://lore.kernel.org/r/104441ef5d97e3932113d44501fda0df88656b83.1616696997.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@...nel.dk>
---
 fs/io_uring.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 69896ae204d6..4189e1b684e1 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -5563,7 +5563,8 @@ static int io_timeout_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe,
 
 	data->mode = io_translate_timeout_mode(flags);
 	hrtimer_init(&data->timer, CLOCK_MONOTONIC, data->mode);
-	io_req_track_inflight(req);
+	if (is_timeout_link)
+		io_req_track_inflight(req);
 	return 0;
 }
 
-- 
2.31.0