From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michal Schmidt Subject: Re: [RFD] cgroup: about multiple hierarchies Date: Fri, 02 Mar 2012 12:16:02 +0100 Message-ID: <4F50ABF2.5070809@redhat.com> References: <20120221211938.GE12236@google.com> <20120222163858.GB4128@redhat.com> <20120222165714.GC4128@redhat.com> <1329990094.24994.64.camel@twins> <1330006399.11248.20.camel@twins> <4F4FAF89.3090706@redhat.com> <1330633603.7414.49.camel@marge.simpson.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1330633603.7414.49.camel-YqMYhexLQo31wTEvPJ5Q0F6hYfS7NtTn@public.gmane.org> 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: Mike Galbraith Cc: Frederic Weisbecker , containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, Kay Sievers , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Christoph Hellwig , Lennart Poettering , Tejun Heo , cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Andrew Morton , Vivek Goyal List-Id: containers.vger.kernel.org On 03/01/2012 09:26 PM, Mike Galbraith wrote: > Q: you say systemd requires CONFIG_CGROUPS=y. Why is that? It's taking > over sysvinits job afaiui, what does that have to do with cgroups? It does more than sysvinit. It does more than fork off services and then forget about them. It keeps track of them all the time. It notices when all processes of a service have exited. It can kill all processes descended from a service. It can always tell what service a given process belongs to. Michal