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 10/10] io_uring: allow multishot polled reqs to defer completion
Date: Mon, 21 Nov 2022 02:03:53 -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 | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index 5c240d01278a..2e12bddcfb2c 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -1821,7 +1821,7 @@ 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);
+ return io_issue_sqe(req, IO_URING_F_NONBLOCK | IO_URING_F_COMPLETE_DEFER);
}
struct io_wq_work *io_wq_free_work(struct io_wq_work *work)
--
2.30.2
prev parent reply other threads:[~2022-11-21 10:30 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-21 10:03 [PATCH for-next 00/10] io_uring: batch multishot completions Dylan Yudaken
2022-11-21 10:03 ` [PATCH for-next 01/10] io_uring: merge io_req_tw_post and io_req_task_complete Dylan Yudaken
2022-11-21 10:03 ` [PATCH for-next 02/10] io_uring: __io_req_complete should defer if available Dylan Yudaken
2022-11-21 10:03 ` [PATCH for-next 03/10] io_uring: split io_req_complete_failed into post/defer Dylan Yudaken
2022-11-21 10:03 ` [PATCH for-next 04/10] io_uring: lock on remove in io_apoll_task_func Dylan Yudaken
2022-11-21 10:03 ` [PATCH for-next 05/10] io_uring: timeout should use io_req_task_complete Dylan Yudaken
2022-11-21 10:03 ` [PATCH for-next 06/10] io_uring: simplify io_issue_sqe Dylan Yudaken
2022-11-21 10:03 ` [PATCH for-next 07/10] io_uring: make io_req_complete_post static Dylan Yudaken
2022-11-21 10:03 ` [PATCH for-next 08/10] io_uring: allow defer completion for aux posted cqes Dylan Yudaken
2022-11-21 10:03 ` [PATCH for-next 09/10] io_uring: allow io_post_aux_cqe to defer completion Dylan Yudaken
2022-11-21 16:55 ` Jens Axboe
2022-11-21 17:31 ` Jens Axboe
2022-11-21 10:03 ` Dylan Yudaken [this message]
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