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From: Dylan Yudaken <[email protected]>
To: Jens Axboe <[email protected]>, Pavel Begunkov <[email protected]>
Cc: <[email protected]>, <[email protected]>,
	Dylan Yudaken <[email protected]>
Subject: [PATCH for-next v3 9/9] io_uring: allow multishot polled reqs to defer completion
Date: Thu, 24 Nov 2022 01:35:59 -0800	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

Until now there was no reason for multishot polled requests to defer
completions as there was no functional difference. However now this will
actually defer the completions, for a performance win.

Signed-off-by: Dylan Yudaken <[email protected]>
---
 io_uring/io_uring.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index f0e5ae7740cf..164904e7da25 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -1805,7 +1805,8 @@ int io_poll_issue(struct io_kiocb *req, bool *locked)
 	io_tw_lock(req->ctx, locked);
 	if (unlikely(req->task->flags & PF_EXITING))
 		return -EFAULT;
-	return io_issue_sqe(req, IO_URING_F_NONBLOCK|IO_URING_F_MULTISHOT);
+	return io_issue_sqe(req, IO_URING_F_NONBLOCK|IO_URING_F_MULTISHOT|
+				 IO_URING_F_COMPLETE_DEFER);
 }
 
 struct io_wq_work *io_wq_free_work(struct io_wq_work *work)
-- 
2.30.2


  parent reply	other threads:[~2022-11-24  9:36 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-24  9:35 [PATCH for-next v3 0/9] io_uring: batch multishot completions Dylan Yudaken
2022-11-24  9:35 ` [PATCH for-next v3 1/9] io_uring: io_req_complete_post should defer if available Dylan Yudaken
2022-11-24 15:56   ` Pavel Begunkov
2022-11-25  9:26     ` Dylan Yudaken
2022-11-24  9:35 ` [PATCH for-next v3 2/9] io_uring: always lock in io_apoll_task_func Dylan Yudaken
2022-11-24  9:35 ` [PATCH for-next v3 3/9] io_uring: defer all io_req_complete_failed Dylan Yudaken
2022-11-24  9:35 ` [PATCH for-next v3 4/9] io_uring: allow defer completion for aux posted cqes Dylan Yudaken
2022-11-24 16:04   ` Pavel Begunkov
2022-11-24  9:35 ` [PATCH for-next v3 5/9] io_uring: add io_aux_cqe which allows deferred completion Dylan Yudaken
2022-11-24  9:35 ` [PATCH for-next v3 6/9] io_uring: make io_fill_cqe_aux static Dylan Yudaken
2022-11-24  9:35 ` [PATCH for-next v3 7/9] io_uring: add lockdep assertion in io_fill_cqe_aux Dylan Yudaken
2022-11-24  9:35 ` [PATCH for-next v3 8/9] io_uring: remove overflow param from io_post_aux_cqe Dylan Yudaken
2022-11-24  9:35 ` Dylan Yudaken [this message]
2022-11-24 13:25 ` [PATCH for-next v3 0/9] io_uring: batch multishot completions Jens Axboe

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