linux-kernel - [tip:sched/core] sched: Update rq->clock for nohz balanced cpus

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Date:	Sat, 17 Jul 2010 11:12:01 GMT
From:	tip-bot for Suresh Siddha <suresh.b.siddha@...el.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, 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: Update rq->clock for nohz balanced cpus

Commit-ID:  5343bdb8fd076f16edc9d113a9e35e2a1d1f4966
Gitweb:     http://git.kernel.org/tip/5343bdb8fd076f16edc9d113a9e35e2a1d1f4966
Author:     Suresh Siddha <suresh.b.siddha@...el.com>
AuthorDate: Fri, 9 Jul 2010 15:19:54 +0200
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Sat, 17 Jul 2010 12:02:08 +0200

sched: Update rq->clock for nohz balanced cpus

Suresh spotted that we don't update the rq->clock in the nohz
load-balancer path.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
LKML-Reference: <1278626014.2834.74.camel@...-t61.sc.intel.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 kernel/sched_fair.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index b4da534..e44a591 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -3596,6 +3596,7 @@ static void nohz_idle_balance(int this_cpu, enum cpu_idle_type idle)
 		}
 
 		raw_spin_lock_irq(&this_rq->lock);
+		update_rq_clock(this_rq);
 		update_cpu_load(this_rq);
 		raw_spin_unlock_irq(&this_rq->lock);
 
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