From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932072Ab2EYRD2 (ORCPT ); Fri, 25 May 2012 13:03:28 -0400 Received: from mx1.redhat.com ([209.132.183.28]:11772 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754194Ab2EYRDY (ORCPT ); Fri, 25 May 2012 13:03:24 -0400 From: Andrea Arcangeli To: linux-kernel@vger.kernel.org, linux-mm@kvack.org Cc: Hillf Danton , Dan Smith , Peter Zijlstra , Linus Torvalds , Andrew Morton , Thomas Gleixner , Ingo Molnar , Paul Turner , Suresh Siddha , Mike Galbraith , "Paul E. McKenney" , Lai Jiangshan , Bharata B Rao , Lee Schermerhorn , Rik van Riel , Johannes Weiner , Srivatsa Vaddagiri , Christoph Lameter Subject: [PATCH 25/35] autonuma: default mempolicy follow AutoNUMA Date: Fri, 25 May 2012 19:02:29 +0200 Message-Id: <1337965359-29725-26-git-send-email-aarcange@redhat.com> In-Reply-To: <1337965359-29725-1-git-send-email-aarcange@redhat.com> References: <1337965359-29725-1-git-send-email-aarcange@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org If the task has already been moved to an autonuma_node try to allocate memory from it even if it's temporarily not the local node. Chances are it's where most of its memory is already located and where it will run in the future. Signed-off-by: Andrea Arcangeli --- mm/mempolicy.c | 15 +++++++++++++-- 1 files changed, 13 insertions(+), 2 deletions(-) diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 88f9422..b6b88f6 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1925,10 +1925,21 @@ retry_cpuset: */ if (pol->mode == MPOL_INTERLEAVE) page = alloc_page_interleave(gfp, order, interleave_nodes(pol)); - else + else { + int nid; +#ifdef CONFIG_AUTONUMA + nid = -1; + if (current->sched_autonuma) + nid = current->sched_autonuma->autonuma_node; + if (nid < 0) + nid = numa_node_id(); +#else + nid = numa_node_id(); +#endif page = __alloc_pages_nodemask(gfp, order, - policy_zonelist(gfp, pol, numa_node_id()), + policy_zonelist(gfp, pol, nid), policy_nodemask(gfp, pol)); + } if (unlikely(!put_mems_allowed(cpuset_mems_cookie) && !page)) goto retry_cpuset;