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Commit ffac80e9 authored by Venkatesh Pallipadi's avatar Venkatesh Pallipadi Committed by Dave Jones
Browse files

[CPUFREQ] Misc cleanups in ondemand. 



Misc cleanups in ondemand. Should have zero functional impact.
Also adding Alexey as author.

Signed-off-by: default avatarAlexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: default avatarVenkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: default avatarDave Jones <davej@redhat.com>
parent 2f8a835c

drivers/cpufreq/cpufreq_ondemand.c

+19 −31
Original line number Diff line number Diff line
@@ -12,22 +12,11 @@ 


#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/smp.h>

#include <linux/init.h>

#include <linux/interrupt.h>

#include <linux/ctype.h>

#include <linux/cpufreq.h>

#include <linux/sysctl.h>

#include <linux/types.h>

#include <linux/fs.h>

#include <linux/sysfs.h>

#include <linux/cpu.h>

#include <linux/sched.h>

#include <linux/kmod.h>

#include <linux/workqueue.h>

#include <linux/jiffies.h>

#include <linux/kernel_stat.h>

#include <linux/percpu.h>

#include <linux/mutex.h>



/*
@@ -80,7 +69,6 @@ static unsigned int dbs_enable; /* number of CPUs using this policy */ 
 * is recursive for the same process. -Venki

 */

static DEFINE_MUTEX(dbs_mutex);

static DECLARE_WORK	(dbs_work, do_dbs_timer, NULL);



static struct workqueue_struct	*kondemand_wq;
@@ -349,8 +337,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy, 


	switch (event) {

	case CPUFREQ_GOV_START:

		if ((!cpu_online(cpu)) ||

		    (!policy->cur))

		if ((!cpu_online(cpu)) || (!policy->cur))

			return -EINVAL;



		if (policy->cpuinfo.transition_latency >
@@ -424,13 +411,13 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy, 
		lock_cpu_hotplug();

		mutex_lock(&dbs_mutex);

		if (policy->max < this_dbs_info->cur_policy->cur)

			__cpufreq_driver_target(

					this_dbs_info->cur_policy,

					policy->max, CPUFREQ_RELATION_H);

			__cpufreq_driver_target(this_dbs_info->cur_policy,

			                        policy->max,

			                        CPUFREQ_RELATION_H);

		else if (policy->min > this_dbs_info->cur_policy->cur)

			__cpufreq_driver_target(

					this_dbs_info->cur_policy,

					policy->min, CPUFREQ_RELATION_L);

			__cpufreq_driver_target(this_dbs_info->cur_policy,

			                        policy->min,

			                        CPUFREQ_RELATION_L);

		mutex_unlock(&dbs_mutex);

		unlock_cpu_hotplug();

		break;
@@ -456,6 +443,7 @@ static void __exit cpufreq_gov_dbs_exit(void) 




MODULE_AUTHOR("Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>");

MODULE_AUTHOR("Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>");

MODULE_DESCRIPTION("'cpufreq_ondemand' - A dynamic cpufreq governor for "

                   "Low Latency Frequency Transition capable processors");

MODULE_LICENSE("GPL");