linux-kernel - Re: [RFC PATCH 0/4] mm/damon: add DAMOS_MIGRATE

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Message-Id: <20250702052341.54336-1-sj@kernel.org>
Date: Tue,  1 Jul 2025 22:23:41 -0700
From: SeongJae Park <sj@...nel.org>
To: SeongJae Park <sj@...nel.org>
Cc: Bijan Tabatabai <bijan311@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Bijan Tabatabai <bijantabatab@...ron.com>,
	damon@...ts.linux.dev,
	kernel-team@...a.com,
	linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: [RFC PATCH 0/4] mm/damon: add DAMOS_MIGRATE_{HOT,COLD} destination nodes and weights

On Tue,  1 Jul 2025 17:23:16 -0700 SeongJae Park <sj@...nel.org> wrote:

> On Tue,  1 Jul 2025 17:39:37 -0500 Bijan Tabatabai <bijan311@...il.com> wrote:
> 
> > On Sat, 21 Jun 2025 10:31:27 -0700 SeongJae Park <sj@...nel.org> wrote:
[...]
> > I am finishing up V3 of the interleave patchset using these patches. It
> > has mostly worked great, but I noticed that damos->migrate_dest was not
> > being updated in damos_commit(), so new weights would not be applied. This
> > meant that you could not update the interleave weights by committing the
> > damon state. I also saw that damos->target_nid was also not being updated
> > here. I will will have a patch fixing
> 
> Nice catch, thank you for finding the bug and making the fix!
> 
> > this with the V3 of the interleave
> > patchset that I will hopefully send out tomorrow.
> 
> I cannot wait, but please take your time! :)

I just realized this series is missing documentation updates.  So I just
posted[1] RFC v2 of this series with two documentation update patches and
trivial commit messages wordsmithing.  Note that other parts are same to RFC
v1, including the damos_commit() bug and damos_migrate_dest name.

Please pick the version to your v3 of interleave patch series if possible.

[1] https://lore.kernel.org/20250702051558.54138-1-sj@kernel.org


Thanks,
SJ

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