From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx185.postini.com [74.125.245.185]) by kanga.kvack.org (Postfix) with SMTP id 2E9736B0032 for ; Thu, 29 Aug 2013 08:11:02 -0400 (EDT) Date: Thu, 29 Aug 2013 13:10:55 +0100 From: Mel Gorman Subject: Re: [PATCH] cpuset: mm: Reduce large amounts of memory barrier related damage v3 Message-ID: <20130829121055.GE22421@suse.de> References: <20120307180852.GE17697@suse.de> <20130823130332.GY31370@twins.programming.kicks-ass.net> <20130823181546.GA31370@twins.programming.kicks-ass.net> <20130829092828.GB22421@suse.de> <20130829094342.GX10002@twins.programming.kicks-ass.net> <20130829105656.GD22421@suse.de> <20130829111419.GA10002@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: <20130829111419.GA10002@twins.programming.kicks-ass.net> Sender: owner-linux-mm@kvack.org List-ID: To: Peter Zijlstra Cc: Andrew Morton , Miao Xie , David Rientjes , Christoph Lameter , linux-mm@kvack.org, linux-kernel@vger.kernel.org, riel@redhat.com On Thu, Aug 29, 2013 at 01:14:19PM +0200, Peter Zijlstra wrote: > > I intended to say nr_node_ids, the same size as buffers such as the > > task_numa_buffers. If we ever return a nid > nr_node_ids here then > > task_numa_fault would corrupt memory. However, it should be possible for > > node_weight to exceed nr_node_ids except maybe during node hot-remove so > > it's not the problem. > > The nodemask situation seems somewhat more confused than the cpumask > case; how would we ever return a nid > nr_node_ids? Corrupt nodemask? > ARGH. I meant impossible. The exact bloody opposite of what I wrote. -- Mel Gorman SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org