linux-kernel - [tip:sched/core] sched, nohz: Set the NOHZ_BALANCE

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Message-ID: <tip-cd490c5b285544dc1319cf79c2ca0528a6447f61@git.kernel.org>
Date:	Tue, 6 Dec 2011 12:24:55 -0800
From:	tip-bot for Suresh Siddha <suresh.b.siddha@...el.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, vatsa@...ux.vnet.ibm.com,
	hpa@...or.com, mingo@...hat.com, a.p.zijlstra@...llo.nl,
	suresh.b.siddha@...el.com, tglx@...utronix.de, mingo@...e.hu
Subject: [tip:sched/core] sched, nohz: Set the NOHZ_BALANCE_KICK flag for idle load balancer

Commit-ID:  cd490c5b285544dc1319cf79c2ca0528a6447f61
Gitweb:     http://git.kernel.org/tip/cd490c5b285544dc1319cf79c2ca0528a6447f61
Author:     Suresh Siddha <suresh.b.siddha@...el.com>
AuthorDate: Tue, 6 Dec 2011 11:26:34 -0800
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Tue, 6 Dec 2011 20:51:29 +0100

sched, nohz: Set the NOHZ_BALANCE_KICK flag for idle load balancer

Intention is to set the NOHZ_BALANCE_KICK flag for the 'ilb_cpu'. Not
for the 'cpu' which is the local cpu. Fix the typo.

Reported-by: Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@...el.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/1323199594.1984.18.camel@sbsiddha-desk.sc.intel.com
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 kernel/sched/fair.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 8be45ed..6482136 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -4853,7 +4853,7 @@ static void nohz_balancer_kick(int cpu)
 	if (ilb_cpu >= nr_cpu_ids)
 		return;
 
-	if (test_and_set_bit(NOHZ_BALANCE_KICK, nohz_flags(cpu)))
+	if (test_and_set_bit(NOHZ_BALANCE_KICK, nohz_flags(ilb_cpu)))
 		return;
 	/*
 	 * Use smp_send_reschedule() instead of resched_cpu().
--
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