Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030386AbWBHSLI (ORCPT ); Wed, 8 Feb 2006 13:11:08 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030397AbWBHSLI (ORCPT ); Wed, 8 Feb 2006 13:11:08 -0500 Received: from omx2-ext.sgi.com ([192.48.171.19]:9161 "EHLO omx2.sgi.com") by vger.kernel.org with ESMTP id S1030386AbWBHSLH (ORCPT ); Wed, 8 Feb 2006 13:11:07 -0500 Date: Wed, 8 Feb 2006 10:11:04 -0800 (PST) From: Christoph Lameter To: linux-kernel@vger.kernel.org Subject: cpusets: only wakeup kswapd for zones in the current cpuset Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1196 Lines: 35 ---------- Forwarded message ---------- Date: Wed, 8 Feb 2006 09:45:03 -0800 (PST) From: Christoph Lameter To: akpm@osdl.org Cc: pj@sgi.com Subject: cpusets: only wakeup kswapd for zones in the current cpuset If we get under some memory pressure in a cpuset (we only scan zones that are in the cpuset for memory) then kswapd is woken up for all zones. This patch only wakes up kswapd in zones that are part of the current cpuset. Signed-off-by: Christoph Lameter Index: linux-2.6.16-rc2/mm/page_alloc.c =================================================================== --- linux-2.6.16-rc2.orig/mm/page_alloc.c 2006-02-02 22:03:08.000000000 -0800 +++ linux-2.6.16-rc2/mm/page_alloc.c 2006-02-08 00:05:09.000000000 -0800 @@ -923,7 +923,8 @@ restart: goto got_pg; do { - wakeup_kswapd(*z, order); + if (cpuset_zone_allowed(*z, gfp_mask)) + wakeup_kswapd(*z, order); } while (*(++z)); /* - 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/