linux-kernel - Re: [PATCH] io_uring: always prep

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Message-Id: <167482716231.273660.4883362917562226118.b4-ty@kernel.dk>
Date:   Fri, 27 Jan 2023 06:46:02 -0700
From:   Jens Axboe <axboe@...nel.dk>
To:     Pavel Begunkov <asml.silence@...il.com>,
        Dylan Yudaken <dylany@...a.com>
Cc:     io-uring@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-team@...com, stable@...r.kernel.org
Subject: Re: [PATCH] io_uring: always prep_async for drain requests


On Fri, 27 Jan 2023 02:59:11 -0800, Dylan Yudaken wrote:
> Drain requests all go through io_drain_req, which has a quick exit in case
> there is nothing pending (ie the drain is not useful). In that case it can
> run the issue the request immediately.
> 
> However for safety it queues it through task work.
> The problem is that in this case the request is run asynchronously, but
> the async work has not been prepared through io_req_prep_async.
> 
> [...]

Applied, thanks!

[1/1] io_uring: always prep_async for drain requests
      commit: ef5c600adb1d985513d2b612cc90403a148ff287

Best regards,
-- 
Jens Axboe