From mboxrd@z Thu Jan 1 00:00:00 1970 From: ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org (Eric W. Biederman) Subject: Re: [PATCH 0/3][V2] remove the ns_cgroup Date: Mon, 27 Sep 2010 14:13:27 -0700 Message-ID: References: <1285582453-6127-1-git-send-email-daniel.lezcano@free.fr> <20100927125741.0df22f09.akpm@linux-foundation.org> <20100927203658.GA5320@hallyn.com> <20100927135025.74e297c3.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20100927135025.74e297c3.akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org> (Andrew Morton's message of "Mon, 27 Sep 2010 13:50:25 -0700") List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Andrew Morton Cc: "Serge E. Hallyn" , containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, Paul Menage List-Id: containers.vger.kernel.org Andrew Morton writes: >> We have always been able to compile out the ns cgroup right? >> >> In which case this is not a backwards incompatible change so much >> as the permanent removal of a borked kernel feature. >> > > That's just spin ;) People whose code is dependent on the old feature > get screwed over if we remove it. Sure. I'm just really pointing out that there is a difference between changing the semantics and completely removing something. It makes the change discoverable and something you can cope with, if you so choose. Overall I agree with at transition period, just look at sys_sysctl. Bleh. Eric