linux-kernel - [tip:sched/domains] sched: Clean up some ALLNODES code

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Message-ID: <tip-3739494e08da50c8a68d65eed5ba3012a54b40d4@git.kernel.org>
Date:	Mon, 11 Apr 2011 14:35:45 GMT
From:	tip-bot for Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	torvalds@...ux-foundation.org, a.p.zijlstra@...llo.nl,
	efault@....de, npiggin@...nel.dk, akpm@...ux-foundation.org,
	tglx@...utronix.de, mingo@...e.hu
Subject: [tip:sched/domains] sched: Clean up some ALLNODES code

Commit-ID:  3739494e08da50c8a68d65eed5ba3012a54b40d4
Gitweb:     http://git.kernel.org/tip/3739494e08da50c8a68d65eed5ba3012a54b40d4
Author:     Peter Zijlstra <a.p.zijlstra@...llo.nl>
AuthorDate: Thu, 7 Apr 2011 14:09:46 +0200
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Mon, 11 Apr 2011 12:58:18 +0200

sched: Clean up some ALLNODES code

Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Mike Galbraith <efault@....de>
Cc: Nick Piggin <npiggin@...nel.dk>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Link: http://lkml.kernel.org/r/20110407122942.025636011@chello.nl
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 kernel/sched.c |   11 ++++-------
 1 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index 72d561f..fa10cf7 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -7280,7 +7280,9 @@ static void build_sched_groups(struct s_data *d, enum sched_domain_level l,
 						d->send_covered, d->tmpmask);
 
 	case SD_LV_ALLNODES:
-		init_sched_build_groups(cpu_map, cpu_map, &cpu_to_allnodes_group,
+		if (cpu == cpumask_first(cpu_map))
+			init_sched_build_groups(cpu_map, cpu_map,
+					&cpu_to_allnodes_group,
 					d->send_covered, d->tmpmask);
 		break;
 #endif
@@ -7331,14 +7333,9 @@ static int __build_sched_domains(const struct cpumask *cpu_map,
 		build_sched_groups(&d, SD_LV_MC, cpu_map, i);
 		build_sched_groups(&d, SD_LV_CPU, cpu_map, i);
 		build_sched_groups(&d, SD_LV_NODE, cpu_map, i);
+		build_sched_groups(&d, SD_LV_ALLNODES, cpu_map, i);
 	}
 
-#ifdef CONFIG_NUMA
-	/* Set up node groups */
-	if (d.sd_allnodes)
-		build_sched_groups(&d, SD_LV_ALLNODES, cpu_map, 0);
-#endif
-
 	/* Calculate CPU power for physical packages and nodes */
 #ifdef CONFIG_SCHED_SMT
 	for_each_cpu(i, cpu_map) {
--
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