linux-kernel - Re: [PATCH 1/2] io_uring: Fix race condition when sqp thread goes to sleep

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Message-ID: <d9d9527c-6d2e-b840-15dd-057618de7864@gmail.com>
Date:   Tue, 22 Jun 2021 19:55:51 +0100
From:   Pavel Begunkov <asml.silence@...il.com>
To:     Olivier Langlois <olivier@...llion01.com>,
        Jens Axboe <axboe@...nel.dk>, io-uring@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] io_uring: Fix race condition when sqp thread goes to
 sleep

On 6/22/21 7:53 PM, Olivier Langlois wrote:
> On Tue, 2021-06-22 at 11:45 -0700, Olivier Langlois wrote:
>> If an asynchronous completion happens before the task is preparing
>> itself to wait and set its state to TASK_INTERRUPTABLE, the
>> completion
>> will not wake up the sqp thread.
>>
> I have just noticed that I made a typo in the description. I will send
> a v2 of that patch.
> 
> Sorry about that. I was too excited to share my discovery...

git format-patch --cover-letter --thread=shallow ...

would be even better, but the fix looks right

-- 
Pavel Begunkov