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path: root/drivers/cpufreq/cpufreq_governor.c
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Diffstat (limited to 'drivers/cpufreq/cpufreq_governor.c')
-rw-r--r--drivers/cpufreq/cpufreq_governor.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index 8742736..0806c31 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -119,8 +119,18 @@ void gov_queue_work(struct dbs_data *dbs_data, struct cpufreq_policy *policy,
{
int i;
+ if (!policy->governor_enabled)
+ return;
+
if (!all_cpus) {
- __gov_queue_work(smp_processor_id(), dbs_data, delay);
+ /*
+ * Use raw_smp_processor_id() to avoid preemptible warnings.
+ * We know that this is only called with all_cpus == false from
+ * works that have been queued with *_work_on() functions and
+ * those works are canceled during CPU_DOWN_PREPARE so they
+ * can't possibly run on any other CPU.
+ */
+ __gov_queue_work(raw_smp_processor_id(), dbs_data, delay);
} else {
for_each_cpu(i, policy->cpus)
__gov_queue_work(i, dbs_data, delay);
@@ -230,7 +240,7 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
policy->governor_data = dbs_data;
- /* policy latency is in nS. Convert it to uS first */
+ /* policy latency is in ns. Convert it to us first */
latency = policy->cpuinfo.transition_latency / 1000;
if (latency == 0)
latency = 1;