From: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Rather than using tick_nohz_get_sleep_length(), let's convert to use the
more flexible tick_nohz_get_next_timer|hrtimer() APIs. This should have no
functional change, but allows following changes to later drop the
tick_nohz_get_sleep_length() API.
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
[Ulf: Clarified information in changelog]
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
---
Changes in v11:
- New patch.
---
drivers/cpuidle/governors/teo.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/cpuidle/governors/teo.c b/drivers/cpuidle/governors/teo.c
index 7d05efdbd3c6..bef1e95c597e 100644
--- a/drivers/cpuidle/governors/teo.c
+++ b/drivers/cpuidle/governors/teo.c
@@ -244,6 +244,9 @@ static int teo_select(struct cpuidle_driver *drv, struct cpuidle_device *dev,
unsigned int duration_us, count;
int max_early_idx, idx, i;
ktime_t delta_tick;
+ ktime_t now = ktime_get();
+ ktime_t next_hrtimer = tick_nohz_get_next_hrtimer();
+ ktime_t next_timer = tick_nohz_get_next_timer();
if (cpu_data->last_state >= 0) {
teo_update(drv, dev);
@@ -252,7 +255,8 @@ static int teo_select(struct cpuidle_driver *drv, struct cpuidle_device *dev,
cpu_data->time_span_ns = local_clock();
- cpu_data->sleep_length_ns = tick_nohz_get_sleep_length(&delta_tick);
+ cpu_data->sleep_length_ns = ktime_sub(next_timer, now);
+ delta_tick = ktime_sub(next_hrtimer, now);
duration_us = ktime_to_us(cpu_data->sleep_length_ns);
count = 0;
--
2.17.1
