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Message-ID: <ZKKAL9o4lC1Iw5SP@dhcp22.suse.cz>
Date: Mon, 3 Jul 2023 10:00:47 +0200
From: Michal Hocko <mhocko@...e.com>
To: linux-kernel@...r.kernel.org
Cc: Andrew Morton <akpm@...ux-foundation.org>, bigeasy@...utronix.de,
pmladek@...e.com, will@...nel.org, tglx@...utronix.de,
peterz@...radead.org, mingo@...hat.com,
mgorman@...hsingularity.net, longman@...hat.com,
lgoncalv@...hat.com, john.ogness@...utronix.de, david@...hat.com,
boqun.feng@...il.com, mm-commits@...r.kernel.org
Subject: Re: +
mm-page_alloc-use-write_seqlock_irqsave-instead-write_seqlock-local_irq_save.patch
added to mm-unstable branch
On Mon 03-07-23 09:09:46, Tetsuo Handa wrote:
> Nacked-by: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
>
> because of https://lkml.kernel.org/r/a1c559b7-335e-5401-d167-301c5b1cd312@I-love.SAKURA.ne.jp .
This is not really productive approach! You are rising non-material
concerns you haven't proven to be real. This is blocking otherwise
useful fix. I am completely fine recording your nack with a reference to
your concern should we ever trip over your concerns and so we can easily
revert and find a different solution but I do not believe this should
stand in the way in the fix.
Now concerning the patch 1 in the series, I do agree this should be
passing through the lockdep maintainers. But this fix is not really
dependent on it.
> On 2023/07/03 8:40, Andrew Morton wrote:
> > The patch titled
> > Subject: mm/page_alloc: use write_seqlock_irqsave() instead write_seqlock() + local_irq_save().
> > has been added to the -mm mm-unstable branch. Its filename is
> > mm-page_alloc-use-write_seqlock_irqsave-instead-write_seqlock-local_irq_save.patch
> >
> > This patch will shortly appear at
> > https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-page_alloc-use-write_seqlock_irqsave-instead-write_seqlock-local_irq_save.patch
> >
> > This patch will later appear in the mm-unstable branch at
> > git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
> >
> > Before you just go and hit "reply", please:
> > a) Consider who else should be cc'ed
> > b) Prefer to cc a suitable mailing list as well
> > c) Ideally: find the original patch on the mailing list and do a
> > reply-to-all to that, adding suitable additional cc's
> >
> > *** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
> >
> > The -mm tree is included into linux-next via the mm-everything
> > branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
> > and is updated there every 2-3 working days
--
Michal Hocko
SUSE Labs
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