From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [RFC] cgroup TODOs Date: Fri, 14 Sep 2012 12:49:50 -0700 Message-ID: <20120914194950.GQ17747@google.com> References: <20120913205827.GO7677@google.com> <20120914180754.GF6221@redhat.com> <20120914185324.GI17747@google.com> <20120914192840.GG6221@redhat.com> <20120914194439.GP17747@google.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <20120914194439.GP17747-hpIqsD4AKlfQT0dZR+AlfA@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: Vivek Goyal Cc: Neil Horman , containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, Serge Hallyn , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Michal Hocko , Paul Mackerras , "Aneesh Kumar K.V" , Arnaldo Carvalho de Melo , Johannes Weiner , Thomas Graf , cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Paul Turner , Ingo Molnar List-Id: containers.vger.kernel.org On Fri, Sep 14, 2012 at 12:44:39PM -0700, Tejun Heo wrote: > I think there currently is too much (broken) flexibility and intent to > remove it. That doesn't mean that removeing all flexibility is the > right direction. It inherently is a balancing act and I think the > proposed solution is a reasonable tradeoff. There's important > difference between causing full overhead by default for all users and > requiring some overhead when the use case at hand calls for the > functionality. That said, if someone can think of a better solution, I'm all ears. One thing that *has* to be maintained is that it should be able to tag a resource in such way that its associated controllers are identifiable regardless of which task is looking at it. Thanks. -- tejun