diff options
Diffstat (limited to 'drivers/cpufreq/cpufreq_governor.c')
| -rw-r--r-- | drivers/cpufreq/cpufreq_governor.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c index 871bf9cf55cf..1d50e97d49f1 100644 --- a/drivers/cpufreq/cpufreq_governor.c +++ b/drivers/cpufreq/cpufreq_governor.c @@ -165,7 +165,7 @@ unsigned int dbs_update(struct cpufreq_policy *policy) * calls, so the previous load value can be used then. */ load = j_cdbs->prev_load; - } else if (unlikely(time_elapsed > 2 * sampling_rate && + } else if (unlikely((int)idle_time > 2 * sampling_rate && j_cdbs->prev_load)) { /* * If the CPU had gone completely idle and a task has @@ -185,10 +185,8 @@ unsigned int dbs_update(struct cpufreq_policy *policy) * clear prev_load to guarantee that the load will be * computed again next time. * - * Detecting this situation is easy: the governor's - * utilization update handler would not have run during - * CPU-idle periods. Hence, an unusually large - * 'time_elapsed' (as compared to the sampling rate) + * Detecting this situation is easy: an unusually large + * 'idle_time' (as compared to the sampling rate) * indicates this scenario. */ load = j_cdbs->prev_load; @@ -217,8 +215,8 @@ unsigned int dbs_update(struct cpufreq_policy *policy) j_cdbs->prev_load = load; } - if (time_elapsed > 2 * sampling_rate) { - unsigned int periods = time_elapsed / sampling_rate; + if (unlikely((int)idle_time > 2 * sampling_rate)) { + unsigned int periods = idle_time / sampling_rate; if (periods < idle_periods) idle_periods = periods; |