From e3d7be270c5b1be07ffadcc8b56599ad8e975c1d Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Sun, 22 Jun 2008 13:06:38 -0700
Subject: rcu, rcutorture: make quiescent rcutorture less power-hungry

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: josh@freedesktop.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: dino@in.ibm.com
Cc: akpm@linux-foundation.org
Cc: torvalds@linux-foundation.org
Cc: vegard.nossum@gmail.com
Cc: adobriyan@gmail.com
Cc: oleg@tv-sign.ru
Cc: bunk@kernel.org
Cc: rjw@sisk.pl
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index 27003e2..0c40c13 100644
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -196,7 +196,10 @@ static void
 rcu_stutter_wait(void)
 {
 	while (stutter_pause_test || !rcutorture_runnable)
-		schedule_timeout_interruptible(1);
+		if (rcutorture_runnable)
+			schedule_timeout_interruptible(1);
+		else
+			schedule_timeout_interruptible(HZ);
 }
 
 /*
-- 
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