From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx108.postini.com [74.125.245.108]) by kanga.kvack.org (Postfix) with SMTP id 840AB6B00EF for ; Mon, 26 Mar 2012 14:27:34 -0400 (EDT) From: Andrea Arcangeli Subject: [PATCH 29/39] autonuma: default mempolicy follow AutoNUMA Date: Mon, 26 Mar 2012 19:46:16 +0200 Message-Id: <1332783986-24195-30-git-send-email-aarcange@redhat.com> In-Reply-To: <1332783986-24195-1-git-send-email-aarcange@redhat.com> References: <1332783986-24195-1-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 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 cfb6c86..f3c03cb 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1929,10 +1929,21 @@ 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; -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org