linux-kernel - Re: [PATCH 2/2] memcg fix stale swap cache account leak v6

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Message-ID: <20090511122711.GF13954@elte.hu>
Date:	Mon, 11 May 2009 14:27:11 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Cc:	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"nishimura@....nes.nec.co.jp" <nishimura@....nes.nec.co.jp>,
	"balbir@...ux.vnet.ibm.com" <balbir@...ux.vnet.ibm.com>,
	"hugh@...itas.com" <hugh@...itas.com>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] memcg fix stale swap cache account leak v6


* KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> wrote:

> > Isnt the right solution to have a better LRU that is aware of 
> > this, instead of polling around in the hope of cleaning up stale 
> > entries?
>
> I tried to modify LRU in the last month but I found it's 
> difficult.

But your patch makes such a correct solution even more difficult to 
achieve, so in that sense it might be a step backwards, right?

	Ingo
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