linux-kernel - Re: [PATCH 1/1] io_uring: fix refcounting with OOM

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Message-ID: <7b4c1986-97ef-4f29-673c-afea847f8799@gmail.com>
Date:   Sat, 25 Jan 2020 22:27:57 +0300
From:   Pavel Begunkov <asml.silence@...il.com>
To:     Jens Axboe <axboe@...nel.dk>, io-uring@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] io_uring: fix refcounting with OOM

On 25/01/2020 19:46, Jens Axboe wrote:
> On 1/25/20 1:59 AM, Pavel Begunkov wrote:
>> In case of out of memory the second argument of percpu_ref_put_many() in
>> io_submit_sqes() may evaluate into "nr - (-EAGAIN)", that is clearly
>> wrong.
> 
> Can you reorder this one before your series, I haven't had time
> to take a look at that yet and I don't think this bug fix should
> depend on it.
> 
Sure.

-- 
Pavel Begunkov



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