Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755480Ab0KSQKh (ORCPT ); Fri, 19 Nov 2010 11:10:37 -0500 Received: from hera.kernel.org ([140.211.167.34]:52812 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755358Ab0KSQKg (ORCPT ); Fri, 19 Nov 2010 11:10:36 -0500 Message-ID: <4CE6A172.7010603@kernel.org> Date: Fri, 19 Nov 2010 17:10:26 +0100 From: Tejun Heo User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.2.12) Gecko/20101027 Lightning/1.0b2 Thunderbird/3.1.6 MIME-Version: 1.0 To: Alexey Dobriyan CC: Kirill Korotaev , Serge Hallyn , Kapil Arya , Gene Cooperman , "linux-kernel@vger.kernel.org" , Pavel Emelianov , "Eric W. Biederman" , Linux Containers Subject: Re: [Ksummit-2010-discuss] checkpoint-restart: naked patch References: <20101104164401.GC10656@sundance.ccs.neu.edu> <4CD3CE29.2010105@kernel.org> <20101106053204.GB12449@count0.beaverton.ibm.com> <20101106204008.GA31077@sundance.ccs.neu.edu> <4CD5D99A.8000402@cs.columbia.edu> <20101107184927.GF31077@sundance.ccs.neu.edu> <4CD72150.9070705@cs.columbia.edu> <4CE3C334.9080401@kernel.org> <20101117153902.GA1155@hallyn.com> <4CE3F8D1.10003@kernel.org> <20101119041045.GC24031@hallyn.com> <4CE683E1.6010500@kernel.org> <04F4899E-B5C7-4BAF-8F2F-05D507A91408@parallels.com> <4CE698C5.5060806@kernel.org> In-Reply-To: X-Enigmail-Version: 1.1.1 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.3 (hera.kernel.org [127.0.0.1]); Fri, 19 Nov 2010 16:10:28 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 944 Lines: 25 On 11/19/2010 05:01 PM, Alexey Dobriyan wrote: > On Fri, Nov 19, 2010 at 6:00 PM, Alexey Dobriyan wrote: >>>> - setting different statistics counters (like netdev stats etc.) >>>> and so on... >>> >>> Why would this matter? >> >> Because you'll introduce million stupid interfaces not interesting to >> anyone but C/R. > > Just like CLONE_SET_PID. Well, if you ask me, having pidns w/o a way to reinstate PID from userland is pretty silly and you and I might not know yet but it's quite imaginable that there will be other use cases for the capability unlike in-kernel CR. Kernel provides building blocks not the whole frigging package and for very good reasons. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/