1 files changed, 11 insertions, 51 deletions

diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index dc9b72e25c1..e59afaa9da2 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -23,21 +23,11 @@
 #include <linux/kernel_stat.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
-#include <linux/tick.h>
 #include <linux/types.h>
 #include <linux/workqueue.h>
-#include <linux/cpu.h>
 
 #include "cpufreq_governor.h"
 
-static struct kobject *get_governor_parent_kobj(struct cpufreq_policy *policy)
-{
-	if (have_governor_per_policy())
-		return &policy->kobj;
-	else
-		return cpufreq_global_kobject;
-}
-
 static struct attribute_group *get_sysfs_attr(struct dbs_data *dbs_data)
 {
 	if (have_governor_per_policy())
@@ -46,41 +36,6 @@ static struct attribute_group *get_sysfs_attr(struct dbs_data *dbs_data)
 		return dbs_data->cdata->attr_group_gov_sys;
 }
 
-static inline u64 get_cpu_idle_time_jiffy(unsigned int cpu, u64 *wall)
-{
-	u64 idle_time;
-	u64 cur_wall_time;
-	u64 busy_time;
-
-	cur_wall_time = jiffies64_to_cputime64(get_jiffies_64());
-
-	busy_time = kcpustat_cpu(cpu).cpustat[CPUTIME_USER];
-	busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_SYSTEM];
-	busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_IRQ];
-	busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_SOFTIRQ];
-	busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_STEAL];
-	busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_NICE];
-
-	idle_time = cur_wall_time - busy_time;
-	if (wall)
-		*wall = cputime_to_usecs(cur_wall_time);
-
-	return cputime_to_usecs(idle_time);
-}
-
-u64 get_cpu_idle_time(unsigned int cpu, u64 *wall, int io_busy)
-{
-	u64 idle_time = get_cpu_idle_time_us(cpu, io_busy ? wall : NULL);
-
-	if (idle_time == -1ULL)
-		return get_cpu_idle_time_jiffy(cpu, wall);
-	else if (!io_busy)
-		idle_time += get_cpu_iowait_time_us(cpu, wall);
-
-	return idle_time;
-}
-EXPORT_SYMBOL_GPL(get_cpu_idle_time);
-
 void dbs_check_cpu(struct dbs_data *dbs_data, int cpu)
 {
 	struct cpu_dbs_common_info *cdbs = dbs_data->cdata->get_cpu_cdbs(cpu);
@@ -92,9 +47,9 @@ void dbs_check_cpu(struct dbs_data *dbs_data, int cpu)
 	unsigned int j;
 
 	if (dbs_data->cdata->governor == GOV_ONDEMAND)
-		ignore_nice = od_tuners->ignore_nice;
+		ignore_nice = od_tuners->ignore_nice_load;
 	else
-		ignore_nice = cs_tuners->ignore_nice;
+		ignore_nice = cs_tuners->ignore_nice_load;
 
 	policy = cdbs->cur_policy;
 
@@ -181,10 +136,8 @@ void gov_queue_work(struct dbs_data *dbs_data, struct cpufreq_policy *policy,
 	if (!all_cpus) {
 		__gov_queue_work(smp_processor_id(), dbs_data, delay);
 	} else {
-		get_online_cpus();
 		for_each_cpu(i, policy->cpus)
 			__gov_queue_work(i, dbs_data, delay);
-		put_online_cpus();
 	}
 }
 EXPORT_SYMBOL_GPL(gov_queue_work);
@@ -278,6 +231,9 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 			return rc;
 		}
 
+		if (!have_governor_per_policy())
+			WARN_ON(cpufreq_get_global_kobject());
+
 		rc = sysfs_create_group(get_governor_parent_kobj(policy),
 				get_sysfs_attr(dbs_data));
 		if (rc) {
@@ -316,6 +272,9 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 			sysfs_remove_group(get_governor_parent_kobj(policy),
 					get_sysfs_attr(dbs_data));
 
+			if (!have_governor_per_policy())
+				cpufreq_put_global_kobject();
+
 			if ((dbs_data->cdata->governor == GOV_CONSERVATIVE) &&
 				(policy->governor->initialized == 1)) {
 				struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
@@ -339,12 +298,12 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 		cs_tuners = dbs_data->tuners;
 		cs_dbs_info = dbs_data->cdata->get_cpu_dbs_info_s(cpu);
 		sampling_rate = cs_tuners->sampling_rate;
-		ignore_nice = cs_tuners->ignore_nice;
+		ignore_nice = cs_tuners->ignore_nice_load;
 	} else {
 		od_tuners = dbs_data->tuners;
 		od_dbs_info = dbs_data->cdata->get_cpu_dbs_info_s(cpu);
 		sampling_rate = od_tuners->sampling_rate;
-		ignore_nice = od_tuners->ignore_nice;
+		ignore_nice = od_tuners->ignore_nice_load;
 		od_ops = dbs_data->cdata->gov_ops;
 		io_busy = od_tuners->io_is_busy;
 	}
@@ -404,6 +363,7 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 
 		mutex_lock(&dbs_data->mutex);
 		mutex_destroy(&cpu_cdbs->timer_mutex);
+		cpu_cdbs->cur_policy = NULL;
 
 		mutex_unlock(&dbs_data->mutex);