From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail144.messagelabs.com (mail144.messagelabs.com [216.82.254.51]) by kanga.kvack.org (Postfix) with ESMTP id C6BD16B0089 for ; Thu, 18 Nov 2010 05:23:54 -0500 (EST) Date: Thu, 18 Nov 2010 11:23:49 +0100 From: Michal Hocko Subject: Re: [PATCH] Make swap accounting default behavior configurable v4 Message-ID: <20101118102349.GF15928@tiehlicka.suse.cz> References: <20101116101726.GA21296@tiehlicka.suse.cz> <20101116124615.978ed940.akpm@linux-foundation.org> <20101117092339.1b7c2d6d.nishimura@mxp.nes.nec.co.jp> <20101116171225.274019cf.akpm@linux-foundation.org> <20101117122801.e9850acf.nishimura@mxp.nes.nec.co.jp> <20101118082332.GB15928@tiehlicka.suse.cz> <20101118174654.8fa69aca.nishimura@mxp.nes.nec.co.jp> <20101118175334.be00c8f2.kamezawa.hiroyu@jp.fujitsu.com> <20101118095607.GD15928@tiehlicka.suse.cz> <20101118191427.fd86db5c.nishimura@mxp.nes.nec.co.jp> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20101118191427.fd86db5c.nishimura@mxp.nes.nec.co.jp> Sender: owner-linux-mm@kvack.org To: Daisuke Nishimura Cc: Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, balbir@linux.vnet.ibm.com, KAMEZAWA Hiroyuki List-ID: [I am removing stable from CC - to shield them off the discussion] On Thu 18-11-10 19:14:27, Daisuke Nishimura wrote: > On Thu, 18 Nov 2010 10:56:07 +0100 > Michal Hocko wrote: > > > On Thu 18-11-10 17:53:34, KAMEZAWA Hiroyuki wrote: > > > On Thu, 18 Nov 2010 17:46:54 +0900 > > > Daisuke Nishimura wrote: > > > > > > > On Thu, 18 Nov 2010 09:23:32 +0100 > > > > Michal Hocko wrote: > > > > > > > > > On Wed 17-11-10 12:28:01, Daisuke Nishimura wrote: > > > > > > On Tue, 16 Nov 2010 17:12:25 -0800 > > > > > > Andrew Morton wrote: > > [...] > > > > > > > Yes, we're stuck with the old one now. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > > > > > > > > > > > > > > But we should note that "foo=[0|1]" is superior to "foo" and "nofoo". > > > > > > > Even if we didn't initially intend to add "nofoo". > > > > > > > > > > > > > I see. > > > > > > > > > > > > Michal-san, could you update your patch to use "swapaccount=[1|0]" ? > > > > > > > > > > I have noticed that Andrew has already taken the last version of the > > > > > patch for -mm tree. Should I still rework it to change swapaccount to > > > > > swapaccount=0|1 resp. true|false? > > > > > > > > > It's usual to update a patch into more sophisticated one while it is in -mm tree. > > > > So, I think you'd better to do it(btw, I prefer 0|1 to true|false. > > > > Reading kernel-parameters.txt, 0|1 is more commonly used.). > > > > > > > > > > I vote for 0|1 > > > > Changes since v3: > > * add 0|1 parameter values handling > > > > Changes since v2: > > * put the new parameter description to the proper (alphabetically > > * sorted) > > place in Documentation/kernel-parameters.txt > > > > Changes since v1: > > * do not remove noswapaccount parameter and add swapaccount parameter > > * instead > > * Documentation/kernel-parameters.txt updated) > > > > 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. > > So we have swapaccount and noswapaccount. Ho hum, "swapaccount=[1|0]" > > would have been better. > > > Thanks, > Daisuke Nishimura. -- Michal Hocko L3 team SUSE LINUX s.r.o. Lihovarska 1060/12 190 00 Praha 9 Czech Republic -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: email@kvack.org