From: Jens Axboe <[email protected]>
To: Stefano Garzarella <[email protected]>
Cc: Alexander Viro <[email protected]>,
[email protected], [email protected],
[email protected]
Subject: Re: [PATCH] io_uring: wakeup threads waiting for EPOLLOUT events
Date: Thu, 16 Jan 2020 08:29:07 -0700 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
On 1/16/20 6:49 AM, Stefano Garzarella wrote:
> io_uring_poll() sets EPOLLOUT flag if there is space in the
> SQ ring, then we should wakeup threads waiting for EPOLLOUT
> events when we expose the new SQ head to the userspace.
>
> Signed-off-by: Stefano Garzarella <[email protected]>
> ---
>
> Do you think is better to change the name of 'cq_wait' and 'cq_fasync'?
I honestly think it'd be better to have separate waits for in/out poll,
the below patch will introduce some unfortunate cacheline traffic
between the submitter and completer side.
--
Jens Axboe
next prev parent reply other threads:[~2020-01-16 15:29 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-16 13:49 [PATCH] io_uring: wakeup threads waiting for EPOLLOUT events Stefano Garzarella
2020-01-16 15:29 ` Jens Axboe [this message]
2020-01-16 15:55 ` Stefano Garzarella
2020-01-16 16:00 ` Jens Axboe
2020-01-16 16:26 ` Stefano Garzarella
2020-01-16 16:30 ` Jens Axboe
2020-01-16 17:03 ` Stefano Garzarella
2020-01-23 19:13 ` Jens Axboe
2020-01-23 21:45 ` Stefano Garzarella
2020-01-24 1:28 ` 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] \
[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