summaryrefslogtreecommitdiffstats
path: root/drivers/cpufreq/cpufreq_governor.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/cpufreq/cpufreq_governor.c')
-rw-r--r--drivers/cpufreq/cpufreq_governor.c18
1 files changed, 3 insertions, 15 deletions
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index e5a08a13ca84..c5469701a3ef 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -198,22 +198,10 @@ void dbs_check_cpu(struct cpufreq_policy *policy)
j_cdbs->prev_cpu_idle = cur_idle_time;
if (ignore_nice) {
- struct cpu_dbs_info *cdbs = gov->get_cpu_cdbs(cpu);
- u64 cur_nice;
- unsigned long cur_nice_jiffies;
+ u64 cur_nice = kcpustat_cpu(j).cpustat[CPUTIME_NICE];
- cur_nice = kcpustat_cpu(j).cpustat[CPUTIME_NICE] -
- cdbs->prev_cpu_nice;
- /*
- * Assumption: nice time between sampling periods will
- * be less than 2^32 jiffies for 32 bit sys
- */
- cur_nice_jiffies = (unsigned long)
- cputime64_to_jiffies64(cur_nice);
-
- cdbs->prev_cpu_nice =
- kcpustat_cpu(j).cpustat[CPUTIME_NICE];
- idle_time += jiffies_to_usecs(cur_nice_jiffies);
+ idle_time += cputime_to_usecs(cur_nice - j_cdbs->prev_cpu_nice);
+ j_cdbs->prev_cpu_nice = cur_nice;
}
if (unlikely(!wall_time || wall_time < idle_time))