Received-SPF: pass (google.com: domain of linux-kernel+bounces-439-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) client-ip=147.75.199.223;
From: "Huang, Ying" <ying.huang@intel.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>,  Minchan Kim <minchan@kernel.org>,
  Yosry Ahmed <yosryahmed@google.com>,  Liu Shixin <liushixin2@huawei.com>,
  Yu Zhao <yuzhao@google.com>,  Sachin Sant <sachinp@linux.ibm.com>,
  Johannes Weiner <hannes@cmpxchg.org>,  Kefeng Wang
 <wangkefeng.wang@huawei.com>,  linux-mm@kvack.org,
  linux-kernel@vger.kernel.org,  Mel Gorman <mgorman@techsingularity.net>
Subject: Re: [PATCH v10] mm: vmscan: try to reclaim swapcache pages if no
 swap space
In-Reply-To: <20231213151341.9ae5fa2bdc266d794a7eed39@linux-foundation.org>
	(Andrew Morton's message of "Wed, 13 Dec 2023 15:13:41 -0800")
References: <ZV3_6UH28KMt0ZDb@tiehlicka>
	<87msv58068.fsf@yhuang6-desk2.ccr.corp.intel.com>
	<ZWDPuR5Ssx07nBHb@tiehlicka>
	<87h6l77wl5.fsf@yhuang6-desk2.ccr.corp.intel.com>
	<ZWRdG49vlGzSY_Uj@tiehlicka>
	<87r0ka64v9.fsf@yhuang6-desk2.ccr.corp.intel.com>
	<ZWW95JPQ1B0cVPY-@tiehlicka> <ZWZtdQKSSnLC8kZ6@google.com>
	<CAJD7tkZA2DDk259QHLnkwVqCq=v_4gBKSUV0hos8G+B6n6=rAQ@mail.gmail.com>
	<ZWZ0fJP9wq65rXtM@google.com> <ZWcPuYzWYAvOODsH@tiehlicka>
	<20231213151341.9ae5fa2bdc266d794a7eed39@linux-foundation.org>
Date: Fri, 15 Dec 2023 13:05:09 +0800
Message-ID: <878r5wqcmy.fsf@yhuang6-desk2.ccr.corp.intel.com>
User-Agent: Gnus/5.13 (Gnus v5.13)
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset=ascii

Andrew Morton <akpm@linux-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.

--
Best Regards,
Huang, Ying