From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268911AbUHMA1F (ORCPT ); Thu, 12 Aug 2004 20:27:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268913AbUHMA1F (ORCPT ); Thu, 12 Aug 2004 20:27:05 -0400 Received: from omx3-ext.sgi.com ([192.48.171.20]:58810 "EHLO omx3.sgi.com") by vger.kernel.org with ESMTP id S268911AbUHMAZz (ORCPT ); Thu, 12 Aug 2004 20:25:55 -0400 From: Jesse Barnes To: William Lee Irwin III Subject: Re: [PATCH] allocate page caches pages in round robin fasion Date: Thu, 12 Aug 2004 17:25:15 -0700 User-Agent: KMail/1.6.2 Cc: akpm@osdl.org, linux-kernel@vger.kernel.org, steiner@sgi.com References: <200408121646.50740.jbarnes@engr.sgi.com> <20040813001331.GR11200@holomorphy.com> In-Reply-To: <20040813001331.GR11200@holomorphy.com> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200408121725.15985.jbarnes@engr.sgi.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thursday, August 12, 2004 5:13 pm, William Lee Irwin III wrote: > Interesting. This may attempt to allocate from offlined nodes, assuming > one adds on sufficient hotplug bits atop mainline and/or -mm. The > following almost does it hotplug-safe except that it needs to enter the > allocator with preemption disabled and drop the preempt_count > internally to it. Can we make alloc_pages_node take offline nodes instead? Maybe it could just allocate from the next nearest node or something? > I suspect we are better off punting this in the direction of hotplug > people than trying to address it ourselves. I think we should go with > this now, as the node hotplug bits are yet to hit the tree. Yeah, agreed. Jesse