linux-kernel - Re: [PATCH] mm/userfaultfd: fix kmap_local LIFO ordering for CONFIG

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Message-ID: <aKcY0ocUDHnLJv12@laps>
Date: Thu, 21 Aug 2025 09:02:10 -0400
From: Sasha Levin <sashal@...nel.org>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: david@...hat.com, surenb@...gle.com, aarcange@...hat.com,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm/userfaultfd: fix kmap_local LIFO ordering for
 CONFIG_HIGHPTE

On Wed, Aug 20, 2025 at 09:24:23PM -0700, Andrew Morton wrote:
>On Fri, 1 Aug 2025 17:56:25 -0400 Sasha Levin <sashal@...nel.org> wrote:
>
>> >> Fixes: adef440691ba ("userfaultfd: UFFDIO_MOVE uABI")
>> >> Co-developed-by: Claude claude-opus-4-20250514
>> >
>> >Well this is innovative.  I doubt if Co-developed-by: is appropriate
>> >for this (where's Claude's Signed-off-by:?)
>>
>> Claude (or any other AI) can't legally sign off on code :)
>>
>> >I'd support creating a new changelog tag for this case.
>>
>> This is in the context of a proposal on workflows@:
>> https://lore.kernel.org/workflows/20250728105634.GF787@pendragon.ideasonboard.com/T/#t
>>
>> The Co-developed-by: usage wasn't my proposal, but it looked like the
>> majority of folks were okay with it.
>>
>
>I need to do something about this and the discussion over on
>ksummit@...ts.linux.dev has been as beer-addled as one would expect.
>
>Oh well.  I guess for now we can welcome Claude to the kernel
>development team.

FWIW, I've switched the new RFC to use Assisted-by: as suggested by yourself
and David. If you'd prefer, I can resend it with the Assisted-by tag instead.

-- 
Thanks,
Sasha