From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx158.postini.com [74.125.245.158]) by kanga.kvack.org (Postfix) with SMTP id B74BD6B0073 for ; Thu, 28 Jun 2012 08:56:56 -0400 (EDT) From: Andrea Arcangeli Subject: [PATCH 26/40] autonuma: default mempolicy follow AutoNUMA Date: Thu, 28 Jun 2012 14:56:06 +0200 Message-Id: <1340888180-15355-27-git-send-email-aarcange@redhat.com> In-Reply-To: <1340888180-15355-1-git-send-email-aarcange@redhat.com> References: <1340888180-15355-1-git-send-email-aarcange@redhat.com> Sender: owner-linux-mm@kvack.org List-ID: 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 , Alex Shi , Mauricio Faria de Oliveira , Konrad Rzeszutek Wilk , Don Morris , Benjamin Herrenschmidt 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 1d771e4..86c0df0 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1945,10 +1945,21 @@ 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->task_autonuma) + nid = current->task_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; -- 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