From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753784AbcAEGg5 (ORCPT ); Tue, 5 Jan 2016 01:36:57 -0500 Received: from cn.fujitsu.com ([59.151.112.132]:23147 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1752568AbcAEGgz (ORCPT ); Tue, 5 Jan 2016 01:36:55 -0500 X-IronPort-AV: E=Sophos;i="5.20,346,1444665600"; d="scan'208";a="2224237" Message-ID: <568B629E.5010806@cn.fujitsu.com> Date: Tue, 5 Jan 2016 14:28:46 +0800 From: Dongsheng Yang User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.0 MIME-Version: 1.0 To: "Eric W. Biederman" CC: Al Viro , , LKML , , Kamezawa Hiroyuki Subject: Re: [Propose] Isolate core_pattern in mnt namespace. References: <56729B3D.1040502@cn.fujitsu.com> <56760F05.3020308@cn.fujitsu.com> <20151220023712.GT20997@ZenIV.linux.org.uk> <567616D6.6060202@cn.fujitsu.com> <87fuyx1mfn.fsf@x220.int.ebiederm.org> <567798EC.1040304@cn.fujitsu.com> <87twnbzcz8.fsf@x220.int.ebiederm.org> <567A1120.3070204@cn.fujitsu.com> <8760zpxgte.fsf@x220.int.ebiederm.org> In-Reply-To: <8760zpxgte.fsf@x220.int.ebiederm.org> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.167.226.66] X-yoursite-MailScanner-ID: D28974189102.A744A X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: yangds.fnst@cn.fujitsu.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/24/2015 12:36 AM, Eric W. Biederman wrote: > Dongsheng Yang writes: [...] Hi Eric, Happy new year and sorry for the late reply. > > Given the other constraints on an implementation the pid namespace looks > by far the one best suited to host such a sysctl if it is possible to > implement safely. So you think it's better to isolate the core_pattern in pid_namespace, am I right? But, core_file_path and user_mode_helper_path in core_pattern are much more related with mnt_namespace IMO. Could you help to explain it more? Thanx Yang > > Eric > > > . >