From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751909AbaJLOht (ORCPT ); Sun, 12 Oct 2014 10:37:49 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:35231 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751115AbaJLOhs (ORCPT ); Sun, 12 Oct 2014 10:37:48 -0400 Date: Sun, 12 Oct 2014 16:37:35 +0200 From: Peter Zijlstra To: riel@redhat.com Cc: linux-kernel@vger.kernel.org, mgorman@suse.de, chegu_vinod@hp.com, mingo@kernel.org, efault@gmx.de, vincent.guittot@linaro.org Subject: Re: [PATCH RFC 3/5] sched,numa: preparations for complex topology placement Message-ID: <20141012143735.GG3015@worktop> References: <1412797050-8903-1-git-send-email-riel@redhat.com> <1412797050-8903-4-git-send-email-riel@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1412797050-8903-4-git-send-email-riel@redhat.com> User-Agent: Mutt/1.5.22.1 (2013-10-16) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Oct 08, 2014 at 03:37:28PM -0400, riel@redhat.com wrote: > From: Rik van Riel > > Preparatory patch for adding NUMA placement on systems with > complex NUMA topology. Also fix a potential divide by zero > in group_weight() > > Signed-off-by: Rik van Riel > --- > include/linux/topology.h | 1 + > kernel/sched/core.c | 2 +- > kernel/sched/fair.c | 57 +++++++++++++++++++++++++++++++----------------- > 3 files changed, 39 insertions(+), 21 deletions(-) > > diff --git a/include/linux/topology.h b/include/linux/topology.h > index bf40d46..f8dfad9 100644 > --- a/include/linux/topology.h > +++ b/include/linux/topology.h > @@ -47,6 +47,7 @@ > if (nr_cpus_node(node)) > > int arch_update_cpu_topology(void); > +extern int sched_domains_numa_levels; > extern int node_hops(int i, int j); > I'm not sure we want to share this globally, please consider using kernel/sched/sched.h