linux-kernel - Re: [PATCH] mm: compaction: avoid fast_isolate_freepages blindly choose improper pageblock

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Date: Thu, 14 Dec 2023 14:17:01 -0800
From: Andrew Morton <akpm@...ux-foundation.org>
To: Barry Song <21cnbao@...il.com>
Cc: Mel Gorman <mgorman@...hsingularity.net>, baolin.wang@...ux.alibaba.com,
 linux-mm@...ck.org, david@...hat.com, hannes@...xchg.org,
 huzhanyuan@...o.com, linux-kernel@...r.kernel.org,
 shikemeng@...weicloud.com, v-songbaohua@...o.com, willy@...radead.org
Subject: Re: [PATCH] mm: compaction: avoid fast_isolate_freepages blindly
 choose improper pageblock

On Thu, 14 Dec 2023 09:34:35 +0800 Barry Song <21cnbao@...il.com> wrote:

> > > Reported-by: Zhanyuan Hu <huzhanyuan@...o.com>
> > > Signed-off-by: Barry Song <v-songbaohua@...o.com>
> >
> > Acked-by: Mel Gorman <mgorman@...hsingularity.net>
> 
> Hi Mel,
> Thanks!
> 
> Hi Andrew,
> Given this patch has been in mm-stable,
> https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git/commit/?h=mm-stable&id=d19b1a1797
> does it still have a chance to collect Mel's tag？

That would require a rebuild of mm-stable, which is also a rebase.  I
don't think I've had to do that before - I'll occasionally rebase, but
just to drop things - not a full rebuild from the quilt patches.

If I end up having to do that then I'll somehow try to remember to make
this change.