From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754725Ab2KUKZR (ORCPT ); Wed, 21 Nov 2012 05:25:17 -0500 Received: from cantor2.suse.de ([195.135.220.15]:44051 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754582Ab2KUKXB (ORCPT ); Wed, 21 Nov 2012 05:23:01 -0500 From: Mel Gorman To: Peter Zijlstra , Andrea Arcangeli , Ingo Molnar Cc: Rik van Riel , Johannes Weiner , Hugh Dickins , Thomas Gleixner , Paul Turner , Lee Schermerhorn , Alex Shi , Linus Torvalds , Andrew Morton , Linux-MM , LKML , Mel Gorman Subject: [PATCH 39/46] sched: numa: Make find_busiest_queue() a method Date: Wed, 21 Nov 2012 10:21:45 +0000 Message-Id: <1353493312-8069-40-git-send-email-mgorman@suse.de> X-Mailer: git-send-email 1.7.9.2 In-Reply-To: <1353493312-8069-1-git-send-email-mgorman@suse.de> References: <1353493312-8069-1-git-send-email-mgorman@suse.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Peter Zijlstra Its a bit awkward but it was the least painful means of modifying the queue selection. Used in the next patch to conditionally use a queue. Signed-off-by: Peter Zijlstra Cc: Paul Turner Cc: Lee Schermerhorn Cc: Christoph Lameter Cc: Rik van Riel Cc: Andrew Morton Cc: Linus Torvalds Signed-off-by: Ingo Molnar Signed-off-by: Mel Gorman Reviewed-by: Rik van Riel --- kernel/sched/fair.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 3c632448..d66ba9f 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -3253,6 +3253,9 @@ struct lb_env { unsigned int loop; unsigned int loop_break; unsigned int loop_max; + + struct rq * (*find_busiest_queue)(struct lb_env *, + struct sched_group *); }; /* @@ -4426,13 +4429,14 @@ static int load_balance(int this_cpu, struct rq *this_rq, struct cpumask *cpus = __get_cpu_var(load_balance_tmpmask); struct lb_env env = { - .sd = sd, - .dst_cpu = this_cpu, - .dst_rq = this_rq, - .dst_grpmask = sched_group_cpus(sd->groups), - .idle = idle, - .loop_break = sched_nr_migrate_break, - .cpus = cpus, + .sd = sd, + .dst_cpu = this_cpu, + .dst_rq = this_rq, + .dst_grpmask = sched_group_cpus(sd->groups), + .idle = idle, + .loop_break = sched_nr_migrate_break, + .cpus = cpus, + .find_busiest_queue = find_busiest_queue, }; cpumask_copy(cpus, cpu_active_mask); @@ -4451,7 +4455,7 @@ redo: goto out_balanced; } - busiest = find_busiest_queue(&env, group); + busiest = env.find_busiest_queue(&env, group); if (!busiest) { schedstat_inc(sd, lb_nobusyq[idle]); goto out_balanced; -- 1.7.9.2