From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756617Ab2JCWME (ORCPT ); Wed, 3 Oct 2012 18:12:04 -0400 Received: from mail-da0-f46.google.com ([209.85.210.46]:35469 "EHLO mail-da0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754400Ab2JCWMB (ORCPT ); Wed, 3 Oct 2012 18:12:01 -0400 Date: Thu, 4 Oct 2012 07:11:51 +0900 From: Tejun Heo To: Glauber Costa Cc: Michal Hocko , linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, kamezawa.hiroyu@jp.fujitsu.com, devel@openvz.org, linux-mm@kvack.org, Suleiman Souhlal , Frederic Weisbecker , Mel Gorman , David Rientjes , Christoph Lameter , Pekka Enberg , Johannes Weiner Subject: Re: [PATCH v3 06/13] memcg: kmem controller infrastructure Message-ID: <20121003221151.GC19248@localhost> References: <1347977050-29476-1-git-send-email-glommer@parallels.com> <1347977050-29476-7-git-send-email-glommer@parallels.com> <20120926155108.GE15801@dhcp22.suse.cz> <5064392D.5040707@parallels.com> <20120927134432.GE29104@dhcp22.suse.cz> <50658B3B.9020303@parallels.com> <20120930082542.GH10383@mtj.dyndns.org> <5069542C.2020103@parallels.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5069542C.2020103@parallels.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, Glauber. Sorry about late replies. I'be been traveling for the Korean thanksgiving holidays. On Mon, Oct 01, 2012 at 12:28:28PM +0400, Glauber Costa wrote: > > That synchronous ref draining is going away. Maybe we can do that > > before kmemcg? Michal, do you have some timeframe on mind? > > Since you said yourself in other points in this thread that you are fine > with some page references outliving the cgroup in the case of slab, this > is a situation that comes with the code, not a situation that was > incidentally there, and we're making use of. Hmmm? Not sure what you're trying to say but I wanted to say that this should be okay once the scheduled memcg pre_destroy change happens and nudge Michal once more. Thanks. -- tejun From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx189.postini.com [74.125.245.189]) by kanga.kvack.org (Postfix) with SMTP id 9AFC86B0081 for ; Wed, 3 Oct 2012 18:12:01 -0400 (EDT) Received: by padfa10 with SMTP id fa10so7943403pad.14 for ; Wed, 03 Oct 2012 15:12:00 -0700 (PDT) Date: Thu, 4 Oct 2012 07:11:51 +0900 From: Tejun Heo Subject: Re: [PATCH v3 06/13] memcg: kmem controller infrastructure Message-ID: <20121003221151.GC19248@localhost> References: <1347977050-29476-1-git-send-email-glommer@parallels.com> <1347977050-29476-7-git-send-email-glommer@parallels.com> <20120926155108.GE15801@dhcp22.suse.cz> <5064392D.5040707@parallels.com> <20120927134432.GE29104@dhcp22.suse.cz> <50658B3B.9020303@parallels.com> <20120930082542.GH10383@mtj.dyndns.org> <5069542C.2020103@parallels.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5069542C.2020103@parallels.com> Sender: owner-linux-mm@kvack.org List-ID: To: Glauber Costa Cc: Michal Hocko , linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, kamezawa.hiroyu@jp.fujitsu.com, devel@openvz.org, linux-mm@kvack.org, Suleiman Souhlal , Frederic Weisbecker , Mel Gorman , David Rientjes , Christoph Lameter , Pekka Enberg , Johannes Weiner Hello, Glauber. Sorry about late replies. I'be been traveling for the Korean thanksgiving holidays. On Mon, Oct 01, 2012 at 12:28:28PM +0400, Glauber Costa wrote: > > That synchronous ref draining is going away. Maybe we can do that > > before kmemcg? Michal, do you have some timeframe on mind? > > Since you said yourself in other points in this thread that you are fine > with some page references outliving the cgroup in the case of slab, this > is a situation that comes with the code, not a situation that was > incidentally there, and we're making use of. Hmmm? Not sure what you're trying to say but I wanted to say that this should be okay once the scheduled memcg pre_destroy change happens and nudge Michal once more. Thanks. -- tejun -- 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/ . Don't email: email@kvack.org From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH v3 06/13] memcg: kmem controller infrastructure Date: Thu, 4 Oct 2012 07:11:51 +0900 Message-ID: <20121003221151.GC19248@localhost> References: <1347977050-29476-1-git-send-email-glommer@parallels.com> <1347977050-29476-7-git-send-email-glommer@parallels.com> <20120926155108.GE15801@dhcp22.suse.cz> <5064392D.5040707@parallels.com> <20120927134432.GE29104@dhcp22.suse.cz> <50658B3B.9020303@parallels.com> <20120930082542.GH10383@mtj.dyndns.org> <5069542C.2020103@parallels.com> Mime-Version: 1.0 Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; bh=pfJmNvHyj/33G1wVszXazVVE3smc7iz9yA/WyZfnP3g=; b=lzEbvkHng0fpES63WypT4CgMD7HcixhfEGa5+CB7kIYZThlJUWKsUpKJ4sd6nNRajZ HOlf0B7gbQimoB1xmrDj6QuobZqxZIQe2czrdL9GT3nqpPRGuY9jp/tShcBQhuYaQjnk 7TwQHcGaItHUglguZonBv2Zt2RathWuXREVc8g5xhKaWGeM2zQ2LsVmy+2H1HWJzWMT6 mLRmGsVqI44Nw3lmb03fz27xEAjiMTBAhvXncHsh3zdEZ/yG6hDiCRKrxAWjqBl384+W Rgj93fx6LB6rswEsW4vP73J/x7853h7HWkbRDBb7Y0Itf0qcZ+UrMSq68RfPYae7FHaq SqEQ== Content-Disposition: inline In-Reply-To: <5069542C.2020103-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org> Sender: cgroups-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Glauber Costa Cc: Michal Hocko , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org, devel-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org, linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, Suleiman Souhlal , Frederic Weisbecker , Mel Gorman , David Rientjes , Christoph Lameter , Pekka Enberg , Johannes Weiner Hello, Glauber. Sorry about late replies. I'be been traveling for the Korean thanksgiving holidays. On Mon, Oct 01, 2012 at 12:28:28PM +0400, Glauber Costa wrote: > > That synchronous ref draining is going away. Maybe we can do that > > before kmemcg? Michal, do you have some timeframe on mind? > > Since you said yourself in other points in this thread that you are fine > with some page references outliving the cgroup in the case of slab, this > is a situation that comes with the code, not a situation that was > incidentally there, and we're making use of. Hmmm? Not sure what you're trying to say but I wanted to say that this should be okay once the scheduled memcg pre_destroy change happens and nudge Michal once more. Thanks. -- tejun