[PATCH 6/6] cpufreq: governor: Create cpufreq_policy_apply_limits()

From: Viresh Kumar
Date: Wed May 18 2016 - 08:26:05 EST


Create a new helper to avoid code duplication across governors.

Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
---
drivers/cpufreq/cpufreq_governor.c | 7 +------
include/linux/cpufreq.h | 8 ++++++++
kernel/sched/cpufreq_schedutil.c | 9 +--------
3 files changed, 10 insertions(+), 14 deletions(-)

diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index 45ca5aff88b2..10cf91cadb97 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -551,12 +551,7 @@ static int cpufreq_governor_limits(struct cpufreq_policy *policy)
struct policy_dbs_info *policy_dbs = policy->governor_data;

mutex_lock(&policy_dbs->timer_mutex);
-
- if (policy->max < policy->cur)
- __cpufreq_driver_target(policy, policy->max, CPUFREQ_RELATION_H);
- else if (policy->min > policy->cur)
- __cpufreq_driver_target(policy, policy->min, CPUFREQ_RELATION_L);
-
+ cpufreq_policy_apply_limits(policy);
gov_update_sample_delay(policy_dbs, 0);

mutex_unlock(&policy_dbs->timer_mutex);
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index fe4c48b0fa40..2c0c5177f3e1 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -493,6 +493,14 @@ void cpufreq_unregister_governor(struct cpufreq_governor *governor);
struct cpufreq_governor *cpufreq_default_governor(void);
struct cpufreq_governor *cpufreq_fallback_governor(void);

+static inline void cpufreq_policy_apply_limits(struct cpufreq_policy *policy)
+{
+ if (policy->max < policy->cur)
+ __cpufreq_driver_target(policy, policy->max, CPUFREQ_RELATION_H);
+ else if (policy->min > policy->cur)
+ __cpufreq_driver_target(policy, policy->min, CPUFREQ_RELATION_L);
+}
+
/* Governor attribute set */
struct gov_attr_set {
struct kobject kobj;
diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c
index 4035765deafc..7699f88234ce 100644
--- a/kernel/sched/cpufreq_schedutil.c
+++ b/kernel/sched/cpufreq_schedutil.c
@@ -465,14 +465,7 @@ static int sugov_limits(struct cpufreq_policy *policy)

if (!policy->fast_switch_enabled) {
mutex_lock(&sg_policy->work_lock);
-
- if (policy->max < policy->cur)
- __cpufreq_driver_target(policy, policy->max,
- CPUFREQ_RELATION_H);
- else if (policy->min > policy->cur)
- __cpufreq_driver_target(policy, policy->min,
- CPUFREQ_RELATION_L);
-
+ cpufreq_policy_apply_limits(policy);
mutex_unlock(&sg_policy->work_lock);
}

--
2.7.1.410.g6faf27b