From: Jens Axboe <[email protected]>
To: Olivier Langlois <[email protected]>,
Pavel Begunkov <[email protected]>,
[email protected], [email protected],
[email protected], [email protected]
Subject: Re: [PATCH io_uring backport to 5.13.y] io_uring: Fix race condition when sqp thread goes to sleep
Date: Sun, 25 Jul 2021 13:10:22 -0600 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <82a82077d8b02166482df754b1abb7c3fbc3c560.1627189961.git.olivier@trillion01.com>
On 7/24/21 11:07 PM, Olivier Langlois wrote:
> [ Upstream commit 997135017716 ("io_uring: Fix race condition when sqp thread goes to sleep") ]
>
> If an asynchronous completion happens before the task is preparing
> itself to wait and set its state to TASK_INTERRUPTIBLE, the completion
> will not wake up the sqp thread.
Looks good to me - Greg, would you mind queueing this one up?
--
Jens Axboe
next prev parent reply other threads:[~2021-07-25 19:10 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-25 5:07 [PATCH io_uring backport to 5.13.y] io_uring: Fix race condition when sqp thread goes to sleep Olivier Langlois
2021-07-25 19:10 ` Jens Axboe [this message]
2021-07-26 7:42 ` Greg KH
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