linux-kernel - Re: [PATCH v2 1/4] mm: Set folio swapbacked iff folios are dirty in try_to_unmap

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Message-ID: <CAK1f24=8YMR3ZN+45CPo55x9j8yho-j=CHj+rBzAVR1nKLnOfw@mail.gmail.com>
Date: Tue, 14 Jan 2025 14:05:47 +0800
From: Lance Yang <ioworker0@...il.com>
To: Baolin Wang <baolin.wang@...ux.alibaba.com>
Cc: Barry Song <21cnbao@...il.com>, akpm@...ux-foundation.org, linux-mm@...ck.org, 
	chrisl@...nel.org, david@...hat.com, kasong@...cent.com, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	ryan.roberts@....com, v-songbaohua@...o.com, x86@...nel.org, 
	linux-riscv@...ts.infradead.org, ying.huang@...el.com, zhengtangquan@...o.com, 
	lorenzo.stoakes@...cle.com
Subject: Re: [PATCH v2 1/4] mm: Set folio swapbacked iff folios are dirty in try_to_unmap_one

On Tue, Jan 14, 2025 at 10:56 AM Baolin Wang
<baolin.wang@...ux.alibaba.com> wrote:
>
>
>
> On 2025/1/13 11:38, Barry Song wrote:
> > From: Barry Song <v-songbaohua@...o.com>
> >
> > The refcount may be temporarily or long-term increased, but this does
> > not change the fundamental nature of the folio already being lazy-
> > freed. Therefore, we only reset 'swapbacked' when we are certain the
> > folio is dirty and not droppable.
> >
> > Suggested-by: David Hildenbrand <david@...hat.com>
> > Signed-off-by: Barry Song <v-songbaohua@...o.com>
>
> LGTM. Feel free to add:
> Reviewed-by: Baolin Wang <baolin.wang@...ux.alibaba.com>

LGTM!
Reviewed-by: Lance Yang <ioworker0@...il.com>

Thanks,
Lance