linux-kernel - Re: [PATCH v3 0/4] io_uring: Fix async workqueue is not canceled on some corner case

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Message-ID: <e3333abd-6e06-60ee-a8f9-7b7c586484f0@kernel.dk>
Date:   Wed, 7 Oct 2020 09:34:39 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Muchun Song <songmuchun@...edance.com>, viro@...iv.linux.org.uk
Cc:     linux-fsdevel@...r.kernel.org, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, zhuyinyin@...edance.com
Subject: Re: [PATCH v3 0/4] io_uring: Fix async workqueue is not canceled on
 some corner case

On 10/6/20 9:16 PM, Muchun Song wrote:
> We should make sure that async workqueue is canceled on exit, but on
> some corner case, we found that the async workqueue is not canceled
> on exit in the linux-5.4. So we started an in-depth investigation.
> Fortunately, we finally found the problem. The commit:
> 
>   1c4404efcf2c ("io_uring: make sure async workqueue is canceled on exit")
> 
> did not completely solve this problem. This patch series to solve this
> problem completely. And there's no upstream variant of this commit, so
> this patch series is just fix the linux-5.4.y stable branch.

Thanks, I'll review/test these and pass them on if good.

-- 
Jens Axboe