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Message-Id: <20101118095247.2445b092.akpm@linux-foundation.org>
Date: Thu, 18 Nov 2010 09:52:47 -0800
From: Andrew Morton <akpm@...ux-foundation.org>
To: Michal Hocko <mhocko@...e.cz>
Cc: Daisuke Nishimura <nishimura@....nes.nec.co.jp>,
linux-mm@...ck.org, linux-kernel@...r.kernel.org,
balbir@...ux.vnet.ibm.com,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Subject: Re: [PATCH] Make swap accounting default behavior configurable v4
On Thu, 18 Nov 2010 11:23:49 +0100 Michal Hocko <mhocko@...e.cz> wrote:
> > I'm sorry again and again, but I think removing "noswapaccount" completely
> > would be better, as Andrew said first:
>
> I read the above Andrew's statement that we really should stick with the
> old parameter.
yup. We shouldn't remove the existing parameter, which people might be
using already.
> > > So we have swapaccount and noswapaccount. Ho hum, "swapaccount=[1|0]"
> > > would have been better.
What I meant was that it was a mistake to add the "noswapaccount" in
the first place. We should have made it "swapaccount=0", because that
would leave open the later option of reversing the default, and
enabling "swapaccount=1".
It also give us the option of adding "swapaccount=2"! Perhaps to
enable alternative swap accounting behaviour.
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