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From: Pavel Begunkov <[email protected]>
To: [email protected]
Cc: Jens Axboe <[email protected]>, [email protected]
Subject: [PATCH for-next v2 02/12] io_uring: improve io_double_lock_ctx fail handling
Date: Wed,  7 Dec 2022 03:53:27 +0000	[thread overview]
Message-ID: <4697f05afcc37df5c8f89e2fe6d9c7c19f0241f9.1670384893.git.asml.silence@gmail.com> (raw)
In-Reply-To: <[email protected]>

msg_ring will fail the request if it can't lock rings, instead punt it
to io-wq as was originally intended.

Cc: [email protected]
Signed-off-by: Pavel Begunkov <[email protected]>
---
 io_uring/msg_ring.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/io_uring/msg_ring.c b/io_uring/msg_ring.c
index 615c85e164ab..c7d6586164ca 100644
--- a/io_uring/msg_ring.c
+++ b/io_uring/msg_ring.c
@@ -164,6 +164,8 @@ int io_msg_ring(struct io_kiocb *req, unsigned int issue_flags)
 	}
 
 done:
+	if (ret == -EAGAIN)
+		return -EAGAIN;
 	if (ret < 0)
 		req_set_fail(req);
 	io_req_set_res(req, ret, 0);
-- 
2.38.1


  parent reply	other threads:[~2022-12-07  3:54 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-07  3:53 [PATCH for-next v2 00/12] CQ locking optimisation Pavel Begunkov
2022-12-07  3:53 ` [PATCH for-next v2 01/12] io_uring: dont remove file from msg_ring reqs Pavel Begunkov
2022-12-07 13:52   ` Jens Axboe
2022-12-07 21:12     ` Pavel Begunkov
2022-12-07 21:23       ` Jens Axboe
2022-12-07  3:53 ` Pavel Begunkov [this message]
2022-12-07  3:53 ` [PATCH for-next v2 03/12] io_uring: skip overflow CQE posting for dying ring Pavel Begunkov
2022-12-07  3:53 ` [PATCH for-next v2 04/12] io_uring: don't check overflow flush failures Pavel Begunkov
2022-12-07  3:53 ` [PATCH for-next v2 05/12] io_uring: complete all requests in task context Pavel Begunkov
2022-12-07  3:53 ` [PATCH for-next v2 06/12] io_uring: force multishot CQEs into " Pavel Begunkov
2022-12-07  3:53 ` [PATCH for-next v2 07/12] io_uring: use tw for putting rsrc Pavel Begunkov
2022-12-07  3:53 ` [PATCH for-next v2 08/12] io_uring: never run tw and fallback in parallel Pavel Begunkov
2022-12-07  3:53 ` [PATCH for-next v2 09/12] io_uring: get rid of double locking Pavel Begunkov
2022-12-07  3:53 ` [PATCH for-next v2 10/12] io_uring: extract a io_msg_install_complete helper Pavel Begunkov
2022-12-07  3:53 ` [PATCH for-next v2 11/12] io_uring: do msg_ring in target task via tw Pavel Begunkov
2022-12-07 15:31   ` Jens Axboe
2022-12-07 15:51     ` Jens Axboe
2022-12-07 21:18       ` Pavel Begunkov
2022-12-07 21:22         ` Jens Axboe
2022-12-07  3:53 ` [PATCH for-next v2 12/12] io_uring: skip spinlocking for ->task_complete Pavel Begunkov

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