linux-kernel - Re: [PATCH v10] mm: vmscan: try to reclaim swapcache pages if no swap space

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Date: Fri, 15 Dec 2023 11:24:37 -0800
From: Andrew Morton <akpm@...ux-foundation.org>
To: "Huang, Ying" <ying.huang@...el.com>
Cc: Michal Hocko <mhocko@...e.com>, Minchan Kim <minchan@...nel.org>, Yosry
 Ahmed <yosryahmed@...gle.com>, Liu Shixin <liushixin2@...wei.com>, Yu Zhao
 <yuzhao@...gle.com>, Sachin Sant <sachinp@...ux.ibm.com>, Johannes Weiner
 <hannes@...xchg.org>, Kefeng Wang <wangkefeng.wang@...wei.com>,
 linux-mm@...ck.org, linux-kernel@...r.kernel.org, Mel Gorman
 <mgorman@...hsingularity.net>
Subject: Re: [PATCH v10] mm: vmscan: try to reclaim swapcache pages if no
 swap space

On Fri, 15 Dec 2023 13:05:09 +0800 "Huang, Ying" <ying.huang@...el.com> wrote:

> Andrew Morton <akpm@...ux-foundation.org> writes:
> 
> > tl;dr, what's the viewpoint on this patch now?
> >
> > I have a note here that we're hoping input from Johannes, Vlastimil and
> > Mel (please).
> 
> Michal has performance concerns.  So, I think that we need to stop
> scanning anon LRU if don't find enough page in swap cache at the tail of
> the inactive list.

OK, thanks, I'll make the v10 patch go away for now.