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>

1 files changed, 4 insertions, 1 deletions

diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index 27003e2421c7..0c40c13c5402 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);
 }
 
 /*