Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753100AbZJWTUF (ORCPT ); Fri, 23 Oct 2009 15:20:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753002AbZJWTUE (ORCPT ); Fri, 23 Oct 2009 15:20:04 -0400 Received: from e2.ny.us.ibm.com ([32.97.182.142]:45989 "EHLO e2.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752869AbZJWTUD (ORCPT ); Fri, 23 Oct 2009 15:20:03 -0400 Date: Fri, 23 Oct 2009 12:21:24 -0700 From: Sukadev Bhattiprolu To: "Eric W. Biederman" Cc: Matt Helsley , Oren Laadan , Daniel Lezcano , randy.dunlap@oracle.com, arnd@arndb.de, linux-api@vger.kernel.org, Containers , Nathan Lynch , linux-kernel@vger.kernel.org, Louis.Rilling@kerlabs.com, kosaki.motohiro@jp.fujitsu.com, hpa@zytor.com, mingo@elte.hu, torvalds@linux-foundation.org, Alexey Dobriyan , roland@redhat.com, Pavel Emelyanov Subject: Re: [RFC][v8][PATCH 0/10] Implement clone3() system call Message-ID: <20091023192124.GA11088@us.ibm.com> References: <20091020040315.GA26632@us.ibm.com> <20091020183329.GB22646@us.ibm.com> <20091021062021.GA2667@us.ibm.com> <20091023004253.GA7915@us.ibm.com> <20091023053001.GA24972@us.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Operating-System: Linux 2.0.32 on an i486 User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 803 Lines: 18 Eric W. Biederman [ebiederm@xmission.com] wrote: | > Anyway, is RESERVED_PIDS meant for initial kernel-threads/daemons - if so | > would it be ok enforce it only in init_pid_ns ? | | It is mean for initial user space daemons, things that start on boot. | | I don't know how much the protection matters at this date, but we have it. Well, since it is not security or other critical restriction, can we allow set_pidmap() a free hand - even in init-pid-ns ? It could prevent a simple subtree C/R of one of the early daemons for debug for instance. Sukadev -- 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/