linux-kernel - Re: [GIT PULL] Additional MM updates for 6.16-rc1

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Message-Id: <20250610170408.48855-1-sj@kernel.org>
Date: Tue, 10 Jun 2025 10:04:08 -0700
From: SeongJae Park <sj@...nel.org>
To: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: SeongJae Park <sj@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Honggyu Kim <honggyu.kim@...com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-mm@...ck.org,
	mm-commits@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [GIT PULL] Additional MM updates for 6.16-rc1

Hi Geert,

On Tue, 10 Jun 2025 18:41:43 +0200 Geert Uytterhoeven <geert@...ux-m68k.org> wrote:

> Hi Andrew,
> 
> On Tue, 10 Jun 2025 at 17:54, Andrew Morton <akpm@...ux-foundation.org> wrote:
> > On Tue, 10 Jun 2025 11:05:40 +0200 Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
> > > On Mon, 2 Jun 2025 at 17:55, Andrew Morton <akpm@...ux-foundation.org> wrote:
> > > > - The 2 patch series "mm/damon: build-enable essential DAMON components
> > > >   by default" from SeongJae Park reworks DAMON Kconfig to make it easier
> > > >   to enable CONFIG_DAMON.
> > >
> > > ... or, make it harder to disable it?
> > >
> > > Given no single defconfig file in v6.15 enables CONFIG_DAMON, I find
> > > it hard to believe defaulting DAMON to "y" is the right thing to do...
> > > (Yes, I have read the rationale in commit 28615e6eed152f2f
> > > ("mm/damon/Kconfig: enable CONFIG_DAMON by default")).

I'm not clearly seeing what is your concern.  Could I ask you more
elaborations?  I'm not that familiar with distros' config setup process and
defconfigs, so this might be just a silly question, but please bear in mind
with me.  I'd like to clearly understand this to avoid making similar problems
later.

> >
> > So what do you recommend?  Editing all the defconfigs seems a bit lame.
> 
> Just revert the commit?
> Distros are (usually) not using defconfig files anyway.

Reverting the commit is not a big problem for me.  But, it would be nice if I
could better understand and agree your concerns, and learn how I could do
better next time.


Thanks,
SJ

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