From: Jens Axboe <[email protected]>
To: Pavel Begunkov <[email protected]>, [email protected]
Subject: Re: [PATCH 03/11] io_uring: optimise out task_work checks on enter
Date: Mon, 22 Mar 2021 07:45:01 -0600 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <ff3273b5111fdb10eea0e3d4f81f620fb58c5a5b.1616378197.git.asml.silence@gmail.com>
On 3/21/21 7:58 PM, Pavel Begunkov wrote:
> io_run_task_work() does some extra work for safety, that isn't actually
> needed in many cases, particularly when it's known that current is not
> exiting and in the TASK_RUNNING state, like in the beginning of a
> syscall.
Is this really worth it?
--
Jens Axboe
next prev parent reply other threads:[~2021-03-22 13:46 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-22 1:58 [PATCH 5.13 00/11] yet another series of random 5.13 patches Pavel Begunkov
2021-03-22 1:58 ` [PATCH 01/11] io_uring: don't clear REQ_F_LINK_TIMEOUT Pavel Begunkov
2021-03-22 1:58 ` [PATCH 02/11] io_uring: don't do extra EXITING cancellations Pavel Begunkov
2021-03-22 1:58 ` [PATCH 03/11] io_uring: optimise out task_work checks on enter Pavel Begunkov
2021-03-22 13:45 ` Jens Axboe [this message]
2021-03-22 14:53 ` Pavel Begunkov
2021-03-22 14:58 ` Jens Axboe
2021-03-22 1:58 ` [PATCH 04/11] io_uring: remove tctx->sqpoll Pavel Begunkov
2021-03-22 1:58 ` [PATCH 05/11] io-wq: refactor *_get_acct() Pavel Begunkov
2021-03-22 1:58 ` [PATCH 06/11] io_uring: don't init req->work fully in advance Pavel Begunkov
2021-03-22 1:58 ` [PATCH 07/11] io_uring: kill unused REQ_F_NO_FILE_TABLE Pavel Begunkov
2021-03-22 1:58 ` [PATCH 08/11] io_uring: optimise kiocb_end_write for !ISREG Pavel Begunkov
2021-03-22 1:58 ` [PATCH 09/11] io_uring: don't alter iopoll reissue fail ret code Pavel Begunkov
2021-03-22 1:58 ` [PATCH 10/11] io_uring: hide iter revert in resubmit_prep Pavel Begunkov
2021-03-22 1:58 ` [PATCH 11/11] io_uring: optimise rw complete error handling Pavel Begunkov
2021-03-22 2:00 ` [PATCH 5.13 00/11] yet another series of random 5.13 patches Pavel Begunkov
2021-03-22 13:49 ` Jens Axboe
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
[email protected] \
[email protected] \
[email protected] \
[email protected] \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox