From: Jens Axboe <axboe@kernel.dk>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: stable@vger.kernel.org
Subject: Re: io_uring stable addition
Date: Sat, 7 Dec 2019 08:19:18 -0700 [thread overview]
Message-ID: <eb01b23d-0e3a-ff36-47fc-e694618c4cb3@kernel.dk> (raw)
In-Reply-To: <20191207120158.GC325082@kroah.com>
On 12/7/19 5:01 AM, Greg KH wrote:
> On Wed, Dec 04, 2019 at 08:53:43AM -0700, Jens Axboe wrote:
>> Hi,
>>
>> We have an issue with drains not working due to missing copy of some
>> state, it's affecting 5.2/5.3/5.4. I'm attaching the patch for 5.4,
>> however the patch should apply to 5.2 and 5.3 as well by just removing
>> the last hunk. The last hunk is touching the linked code, which was
>> introduced with 5.4.
>
> Does this match up with a patch in Linus's tree anywhere? Why is this a
> stable-only thing?
Because it was fixed as part of a cleanup series in mainline, before
anyone realized we had this issue. That removed the separate states
of ->index vs ->submit.sqe. That series is not something I was
comfortable putting into stable, hence the much simpler addition.
Here's the patch in the series that fixes the same issue:
commit cf6fd4bd559ee61a4454b161863c8de6f30f8dca
Author: Pavel Begunkov <asml.silence@gmail.com>
Date: Mon Nov 25 23:14:39 2019 +0300
io_uring: inline struct sqe_submit
--
Jens Axboe
next prev parent reply other threads:[~2019-12-07 15:19 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-04 15:53 io_uring stable addition Jens Axboe
2019-12-07 12:01 ` Greg KH
2019-12-07 15:19 ` Jens Axboe [this message]
2019-12-07 15:34 ` Greg KH
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