This is a note to let you know that I've just added the patch titled
io_uring: fail links when poll fails
to the 5.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
io_uring-fail-links-when-poll-fails.patch
and it can be found in the queue-5.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit a3a1e51d18736979d1083cd0e0a607e0070d2781
Author: Pavel Begunkov <asml.silence@xxxxxxxxx>
Date: Wed Jun 22 00:00:35 2022 +0100
io_uring: fail links when poll fails
[ Upstream commit c487a5ad48831afa6784b368ec40d0ee50f2fe1b ]
Don't forget to cancel all linked requests of poll request when
__io_arm_poll_handler() failed.
Fixes: aa43477b04025 ("io_uring: poll rework")
Signed-off-by: Pavel Begunkov <asml.silence@xxxxxxxxx>
Link: https://lore.kernel.org/r/a78aad962460f9fdfe4aa4c0b62425c88f9415bc.1655852245.git.asml.silence@xxxxxxxxx
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 68aab48838e4..ca9ed3d899e6 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -6399,6 +6399,8 @@ static int io_poll_add(struct io_kiocb *req, unsigned int issue_flags)
ipt.pt._qproc = io_poll_queue_proc;
ret = __io_arm_poll_handler(req, &req->poll, &ipt, poll->events);
+ if (!ret && ipt.error)
+ req_set_fail(req);
ret = ret ?: ipt.error;
if (ret)
__io_req_complete(req, issue_flags, ret, 0);
