From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Fri, 27 Jun 2008 11:41:25 +0000 (+0200)
Subject: sched: fix sched_balance_self() smp group balancing
X-Git-Tag: v2.6.27-rc1~1105^2~26
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=039a1c41b3a489e34593ea1e1687f6fdad6b13ab;p=linux-2.6

sched: fix sched_balance_self() smp group balancing

Finding the least idle cpu is more accurate when done with updated shares.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
Cc: Mike Galbraith <efault@gmx.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/kernel/sched.c b/kernel/sched.c
index cdd09462fc..39d5495540 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -2128,6 +2128,9 @@ static int sched_balance_self(int cpu, int flag)
 			sd = tmp;
 	}
 
+	if (sd)
+		update_shares(sd);
+
 	while (sd) {
 		cpumask_t span, tmpmask;
 		struct sched_group *group;