Re: [RFC PATCH v2 2/4] mm/damon: Support for synchrounous huge pages collapse

SeongJae Park
2026-03-11T14:18:02Z

On Wed, 11 Mar 2026 16:11:12 +0300 Gutierrez Asier <gutierrez.asier@huawei-partners.com> wrote:

>
>
> On 3/11/2026 4:02 AM, SeongJae Park wrote:
> > On Tue, 10 Mar 2026 16:24:18 +0000 <gutierrez.asier@huawei-partners.com> wrote:
> >
> >> From: Asier Gutierrez <gutierrez.asier@huawei-partners.com>
> >
> > Please add more descriptions of the change, including the motivation.
> >
> > I assume the motivation is similar to MADV_COLLAPSE that aims to make
> > synchronous and therefore faster huge page collapsing impacts copared to
> > MADV_HUGEPAGE? It would be nice to make it clear here. Also, if my assumption
> > is not wrong, adding a test results showing the benefit of DAMOS_COLLAPSE over
> > DAMOS_HUGEPAGE here would be nice.
>
> You are right. I will make it more clear in the cover letter for the next
> version.

Sounds good. But please add a brief commit message in addition to the subject
here, too. Some people complains blank commit message looks odd.

Thanks,
SJ …