X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=drivers%2Fcpufreq%2Fcpufreq_conservative.c;h=e1df376e709ea0681c0498e1cc5c548764748cab;hb=f7f24758ac98a506770bc5910d33567610fa3403;hp=c503ec14765f77dd3bc5d618393a1bfde1b1c3ba;hpb=790d76fa979f55bfc49a6901bb911778949b582d;p=~andy%2Flinux

diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index c503ec14765..e1df376e709 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -297,7 +297,6 @@ static struct attribute_group dbs_attr_group = {
 static void dbs_check_cpu(int cpu)
 {
 	unsigned int idle_ticks, up_idle_ticks, down_idle_ticks;
-	unsigned int total_idle_ticks;
 	unsigned int freq_step;
 	unsigned int freq_down_sampling_rate;
 	static int down_skip[NR_CPUS];
@@ -338,19 +337,12 @@ static void dbs_check_cpu(int cpu)
 	 */
 
 	/* Check for frequency increase */
-	total_idle_ticks = get_cpu_idle_time(cpu);
-	idle_ticks = total_idle_ticks -
-		this_dbs_info->prev_cpu_idle_up;
-	this_dbs_info->prev_cpu_idle_up = total_idle_ticks;
-	
 
+	idle_ticks = UINT_MAX;
 	for_each_cpu_mask(j, policy->cpus) {
-		unsigned int tmp_idle_ticks;
+		unsigned int tmp_idle_ticks, total_idle_ticks;
 		struct cpu_dbs_info_s *j_dbs_info;
 
-		if (j == cpu)
-			continue;
-
 		j_dbs_info = &per_cpu(cpu_dbs_info, j);
 		/* Check for frequency increase */
 		total_idle_ticks = get_cpu_idle_time(j);
@@ -400,20 +392,12 @@ static void dbs_check_cpu(int cpu)
 	if (down_skip[cpu] < dbs_tuners_ins.sampling_down_factor)
 		return;
 
-	total_idle_ticks = this_dbs_info->prev_cpu_idle_up;
-	idle_ticks = total_idle_ticks -
-		this_dbs_info->prev_cpu_idle_down;
-	this_dbs_info->prev_cpu_idle_down = total_idle_ticks;
-
+	idle_ticks = UINT_MAX;
 	for_each_cpu_mask(j, policy->cpus) {
-		unsigned int tmp_idle_ticks;
+		unsigned int tmp_idle_ticks, total_idle_ticks;
 		struct cpu_dbs_info_s *j_dbs_info;
 
-		if (j == cpu)
-			continue;
-
 		j_dbs_info = &per_cpu(cpu_dbs_info, j);
-		/* Check for frequency increase */
 		total_idle_ticks = j_dbs_info->prev_cpu_idle_up;
 		tmp_idle_ticks = total_idle_ticks -
 			j_dbs_info->prev_cpu_idle_down;
@@ -432,7 +416,7 @@ static void dbs_check_cpu(int cpu)
 	down_idle_ticks = (100 - dbs_tuners_ins.down_threshold) *
 			usecs_to_jiffies(freq_down_sampling_rate);
 
-	if (idle_ticks > down_idle_ticks ) {
+	if (idle_ticks > down_idle_ticks) {
 		/* if we are already at the lowest speed then break out early
 		 * or if we 'cannot' reduce the speed as the user might want
 		 * freq_step to be zero */