From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with ESMTP id 9E3526B0069 for ; Tue, 1 Nov 2011 18:25:25 -0400 (EDT) MIME-Version: 1.0 Message-ID: <82d2f082-6ab1-479e-bbf9-f04992804420@default> Date: Tue, 1 Nov 2011 15:25:14 -0700 (PDT) From: Dan Magenheimer Subject: RE: [GIT PULL] mm: frontswap (for 3.2 window) References: <20111031171321.097a166c.kamezawa.hiroyu@jp.fujitsu.com> <20111101095038.30289914.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20111101144309.a51c99b5.akpm@linux-foundation.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: KAMEZAWA Hiroyuki , Linus Torvalds , linux-mm@kvack.org, LKML , Konrad Wilk , Jeremy Fitzhardinge , Seth Jennings , ngupta@vflare.org, levinsasha928@gmail.com, Chris Mason , JBeulich@novell.com, Dave Hansen , Jonathan Corbet , Neo Jia > From: Andrew Morton [mailto:akpm@linux-foundation.org] > Subject: Re: [GIT PULL] mm: frontswap (for 3.2 window) >=20 > On Tue, 1 Nov 2011 08:25:38 -0700 (PDT) > Dan Magenheimer wrote: >=20 > At kernel summit there was discussion and overall agreement that we've > been paying insufficient attention to the big-picture "should we > include this feature at all" issues. We resolved to look more > intensely and critically at new features with a view to deciding > whether their usefulness justified their maintenance burden. It seems > that you're our crash-test dummy ;) (Now I'm wondering how to get > "cgroups: add a task counter subsystem" put through the same wringer). >=20 > I will confess to and apologise for dropping the ball on cleancache and > frontswap. I was never really able to convince myself that it met the > (very vague) cost/benefit test, but nor was I able to present > convincing arguments that it failed that test. So I very badly went > into hiding, to wait and see what happened. What we needed all those > months ago was to have the discussion we're having now. >=20 > This is a difficult discussion and a difficult decision. But it is > important that we get it right. Thanks for you patience. Thanks very much for your very kind response. Let me know if I can do anything else to help the process other than continuing the discussion of course. I'll be happy to help as soon as I return from the crash-test-dummy hospital ;-) Dan -- 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 internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org