From: Pavel Begunkov <[email protected]>
To: [email protected]
Cc: Jens Axboe <[email protected]>, [email protected]
Subject: [PATCH 06/16] io_uring: don't wake sqpoll in io_cqring_ev_posted
Date: Mon, 4 Oct 2021 20:02:51 +0100 [thread overview]
Message-ID: <b49dab27b64cf11f4c50f2f90dcaac123430e05d.1633373302.git.asml.silence@gmail.com> (raw)
In-Reply-To: <[email protected]>
io_cqring_ev_posted() doesn't need to wake SQPOLL, it's either done by
userspace or with task_work, but no action is required on request
completion. Rip off bits waking it up in io_cqring_ev_posted().
Signed-off-by: Pavel Begunkov <[email protected]>
---
fs/io_uring.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 377c1cfd5d06..56c0f7f1610f 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1619,8 +1619,6 @@ static void io_cqring_ev_posted(struct io_ring_ctx *ctx)
*/
if (wq_has_sleeper(&ctx->cq_wait))
wake_up_all(&ctx->cq_wait);
- if (ctx->sq_data && waitqueue_active(&ctx->sq_data->wait))
- wake_up(&ctx->sq_data->wait);
if (io_should_trigger_evfd(ctx))
eventfd_signal(ctx->cq_ev_fd, 1);
if (waitqueue_active(&ctx->poll_wait))
--
2.33.0
next prev parent reply other threads:[~2021-10-04 19:03 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-04 19:02 [PATCH 00/16] squeeze more performance Pavel Begunkov
2021-10-04 19:02 ` [PATCH 01/16] io_uring: optimise kiocb layout Pavel Begunkov
2021-10-04 19:02 ` [PATCH 02/16] io_uring: add more likely/unlikely() annotations Pavel Begunkov
2021-10-04 19:02 ` [PATCH 03/16] io_uring: delay req queueing into compl-batch list Pavel Begunkov
2021-10-04 19:02 ` [PATCH 04/16] io_uring: optimise request allocation Pavel Begunkov
2021-10-04 19:02 ` [PATCH 05/16] io_uring: optimise INIT_WQ_LIST Pavel Begunkov
2021-10-04 19:02 ` Pavel Begunkov [this message]
2021-10-04 19:02 ` [PATCH 07/16] io_uring: merge CQ and poll waitqueues Pavel Begunkov
2021-10-04 19:02 ` [PATCH 08/16] io_uring: optimise ctx referencing by requests Pavel Begunkov
2021-10-04 19:02 ` [PATCH 09/16] io_uring: mark cold functions Pavel Begunkov
2021-10-04 19:02 ` [PATCH 10/16] io_uring: optimise io_free_batch_list() Pavel Begunkov
2021-10-04 19:02 ` [PATCH 11/16] io_uring: control ->async_data with a REQ_F flag Pavel Begunkov
2021-10-04 19:02 ` [PATCH 12/16] io_uring: remove struct io_completion Pavel Begunkov
2021-10-04 19:02 ` [PATCH 13/16] io_uring: inline io_req_needs_clean() Pavel Begunkov
2021-10-04 19:02 ` [PATCH 14/16] io_uring: inline io_poll_complete Pavel Begunkov
2021-10-04 19:03 ` [PATCH 15/16] io_uring: correct fill events helpers types Pavel Begunkov
2021-10-04 19:03 ` [PATCH 16/16] io_uring: mark hot functions Pavel Begunkov
2021-10-04 20:19 ` [PATCH 00/16] squeeze more performance Jens Axboe
2021-10-04 20:33 ` Jens Axboe
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