linux-kernel - Re: [PATCH 5/8] mm: move lazily freed pages to inactive list

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Message-ID: <20151104081512.GB29607@dhcp22.suse.cz>
Date:	Wed, 4 Nov 2015 09:15:12 +0100
From:	Michal Hocko <mhocko@...nel.org>
To:	Minchan Kim <minchan@...nel.org>
Cc:	Shaohua Li <shli@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Michael Kerrisk <mtk.manpages@...il.com>,
	linux-api@...r.kernel.org, Hugh Dickins <hughd@...gle.com>,
	Johannes Weiner <hannes@...xchg.org>,
	zhangyanfei@...fujitsu.com, Rik van Riel <riel@...hat.com>,
	Mel Gorman <mgorman@...e.de>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Jason Evans <je@...com>, Daniel Micay <danielmicay@...il.com>,
	"Kirill A. Shutemov" <kirill@...temov.name>,
	yalin.wang2010@...il.com, "Wang, Yalin" <Yalin.Wang@...ymobile.com>
Subject: Re: [PATCH 5/8] mm: move lazily freed pages to inactive list

On Tue 03-11-15 09:52:23, Minchan Kim wrote:
[...]
> I believe adding new LRU list would be controversial(ie, not trivial)
> for maintainer POV even though code wouldn't be complicated.
> So, I want to see problems in *real practice*, not any theoritical
> test program before diving into that.
> To see such voice of request, we should release the syscall.
> So, I want to push this first.

Completely agreed. The functionality is useful already and a new LRU
list is not justified yet.
-- 
Michal Hocko
SUSE Labs
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