linux-kernel - [tip:sched/core] sched/numa: Fix the new NUMA topology bits

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Message-ID: <tip-0sqhrht34phowgclj12dgk8h@git.kernel.org>
Date:	Mon, 14 May 2012 06:43:47 -0700
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@...nel.org,
	yinghai@...nel.org, a.p.zijlstra@...llo.nl, greg.pearson@...com,
	tglx@...utronix.de
Subject: [tip:sched/core] sched/numa: Fix the new NUMA topology bits

Commit-ID:  dd7d8634e619b715a537402672d1383535ff4c54
Gitweb:     http://git.kernel.org/tip/dd7d8634e619b715a537402672d1383535ff4c54
Author:     Peter Zijlstra <a.p.zijlstra@...llo.nl>
AuthorDate: Fri, 11 May 2012 00:56:20 +0200
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Mon, 14 May 2012 15:05:25 +0200

sched/numa: Fix the new NUMA topology bits

There's no need to convert a node number to a node number by
pretending its a cpu number..

Reported-by: Yinghai Lu <yinghai@...nel.org>
Reported-and-Tested-by: Greg Pearson <greg.pearson@...com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/n/tip-0sqhrht34phowgclj12dgk8h@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 kernel/sched/core.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index b4f2096..0738036 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6395,8 +6395,7 @@ static void sched_init_numa(void)
 			sched_domains_numa_masks[i][j] = mask;
 
 			for (k = 0; k < nr_node_ids; k++) {
-				if (node_distance(cpu_to_node(j), k) >
-						sched_domains_numa_distance[i])
+				if (node_distance(j, k) > sched_domains_numa_distance[i])
 					continue;
 
 				cpumask_or(mask, mask, cpumask_of_node(k));
--
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