From: Ben Slusky <sluskyb@paranoiacs.org>
Date: Mon, 7 Jul 2008 17:16:20 +0000 (-0400)
Subject: [CPUFREQ] use deferrable delayed work init in conservative governor
X-Git-Tag: firefly_0821_release~17830^2~8
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=8217e4f4c93e5fb59bb3cd1e6135213889349f86;p=firefly-linux-kernel-4.4.55.git

[CPUFREQ] use deferrable delayed work init in conservative governor

Venki Pallipadi made a similar change to the ondemand governor a while
back (in commit 28287033e12463c8ff89f1ea8038783d0360391c). It seems to
work just as well in the conservative governor, leading to fewer wakeups
as reported by powertop.

Signed-off-by: Ben Slusky <sluskyb@paranoiacs.org>
Signed-off-by: Dave Jones <davej@redhat.com>
---

diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index ac0bbf2d234f..4ee53a4c6d2c 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -460,6 +460,7 @@ static void do_dbs_timer(struct work_struct *work)
 
 static inline void dbs_timer_init(void)
 {
+	init_timer_deferrable(&dbs_work.timer);
 	schedule_delayed_work(&dbs_work,
 			usecs_to_jiffies(dbs_tuners_ins.sampling_rate));
 	return;