Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752753AbaJ0MkL (ORCPT ); Mon, 27 Oct 2014 08:40:11 -0400 Received: from mail-qc0-f181.google.com ([209.85.216.181]:58927 "EHLO mail-qc0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751836AbaJ0MkJ (ORCPT ); Mon, 27 Oct 2014 08:40:09 -0400 Date: Mon, 27 Oct 2014 08:40:02 -0400 From: Tejun Heo To: Peter Zijlstra Cc: Kirill Tkhai , Burke Libbey , "linux-kernel@vger.kernel.org" , "mingo@kernel.org" Subject: Re: [PATCH] sched: reset sched_entity depth on changing parent Message-ID: <20141027124002.GA4436@htj.dyndns.org> References: <20141024150746.GB25260@burke.local> <20141024155805.GF21513@worktop.programming.kicks-ass.net> <164441414171122@web11g.yandex.ru> <20141027120734.GA3337@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20141027120734.GA3337@twins.programming.kicks-ass.net> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Oct 27, 2014 at 01:07:34PM +0100, Peter Zijlstra wrote: > On Fri, Oct 24, 2014 at 09:18:42PM +0400, Kirill Tkhai wrote: > > I was seeking a places where task_group of a task may change. I can't understand > > how changing of parent's cgroup during fork() applies to a child. > > I didn't know we could change cgroup on fork(), I though the idea was > you always inherited your parents cgroup. > > How can this be? Hmmm? -ENEEDMORECONTEXT but the inheriting happens at one point during fork in cgroup_post_fork(). The child inherits whatever the parent cgroup is at that point. Thanks. -- tejun -- 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/