From: Jens Axboe <[email protected]>
To: David Wei <[email protected]>, [email protected]
Cc: Pavel Begunkov <[email protected]>
Subject: Re: [PATCH v1 1/3] io_uring: add IORING_ENTER_NO_IOWAIT flag
Date: Fri, 16 Aug 2024 12:35:24 -0600 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
On 8/16/24 12:01 PM, David Wei wrote:
> Add IORING_ENTER_NO_IOWAIT flag. If this is set then io_uring will not
> set current->in_iowait prior to waiting.
Ordering is a bit wrong here - with this patch, you can set
IORING_ENTER_NO_IOWAIT and it will appear to work (eg no -EINVAL
return), but it won't actually work.
I'd just squash patch 1 + 2, as just having patch 2 with the uapi hunk
be patch 1 leaves patch 2 as just adding it to the flags check.
And at that point you'd probably just want to fold in patch 3 as well,
not sure that makes sense as a separate patch.
--
Jens Axboe
next prev parent reply other threads:[~2024-08-16 18:35 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-16 18:01 [PATCH v1 0/3] io_uring: add option to not set in_iowait David Wei
2024-08-16 18:01 ` [PATCH v1 1/3] io_uring: add IORING_ENTER_NO_IOWAIT flag David Wei
2024-08-16 18:35 ` Jens Axboe [this message]
2024-08-16 18:01 ` [PATCH v1 2/3] io_uring: do not set no_iowait if IORING_ENTER_NO_WAIT David Wei
2024-08-16 18:38 ` Jens Axboe
2024-08-16 22:23 ` David Wei
2024-08-16 18:49 ` Jens Axboe
2024-08-16 18:01 ` [PATCH v1 3/3] io_uring: add IORING_FEAT_IOWAIT_TOGGLE feature flag David Wei
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] \
[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