[PATCH 2/3] cpuidle: powernv: Don't continually set thread priority in snooze_loop()

[Anton Blanchard]

From: Anton Blanchard <anton at samba.org>

The powerpc64 kernel exception handlers have preserved thread priorities
for a long time now, so there is no need to continually set it.

Just set it once on entry and once exit.

Signed-off-by: Anton Blanchard <anton at samba.org>
---
 drivers/cpuidle/cpuidle-powernv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cpuidle/cpuidle-powernv.c b/drivers/cpuidle/cpuidle-powernv.c
index 9d9f164894eb..8c991c254b95 100644
--- a/drivers/cpuidle/cpuidle-powernv.c
+++ b/drivers/cpuidle/cpuidle-powernv.c
@@ -56,8 +56,8 @@ static int snooze_loop(struct cpuidle_device *dev,
 
 	snooze_exit_time = get_tb() + snooze_timeout;
 	ppc64_runlatch_off();
+	HMT_very_low();
 	while (!need_resched()) {
-		HMT_very_low();
 		if (snooze_timeout_en && get_tb() > snooze_exit_time)
 			break;
 	}
-- 
2.11.0