1 files changed, 6 insertions, 5 deletions

diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
index a43fa1a57d57..af4aad6ee2eb 100644
--- a/drivers/acpi/acpi_pad.c
+++ b/drivers/acpi/acpi_pad.c
@@ -36,6 +36,7 @@
 #define ACPI_PROCESSOR_AGGREGATOR_DEVICE_NAME "Processor Aggregator"
 #define ACPI_PROCESSOR_AGGREGATOR_NOTIFY 0x80
 static DEFINE_MUTEX(isolated_cpus_lock);
+static DEFINE_MUTEX(round_robin_lock);
 
 static unsigned long power_saving_mwait_eax;
 
@@ -107,7 +108,7 @@ static void round_robin_cpu(unsigned int tsk_index)
         if (!alloc_cpumask_var(&tmp, GFP_KERNEL))
                 return;
 
-        mutex_lock(&isolated_cpus_lock);
+        mutex_lock(&round_robin_lock);
         cpumask_clear(tmp);
         for_each_cpu(cpu, pad_busy_cpus)
                 cpumask_or(tmp, tmp, topology_thread_cpumask(cpu));
@@ -116,7 +117,7 @@ static void round_robin_cpu(unsigned int tsk_index)
         if (cpumask_empty(tmp))
                 cpumask_andnot(tmp, cpu_online_mask, pad_busy_cpus);
         if (cpumask_empty(tmp)) {
-                mutex_unlock(&isolated_cpus_lock);
+                mutex_unlock(&round_robin_lock);
                 return;
         }
         for_each_cpu(cpu, tmp) {
@@ -131,7 +132,7 @@ static void round_robin_cpu(unsigned int tsk_index)
         tsk_in_cpu[tsk_index] = preferred_cpu;
         cpumask_set_cpu(preferred_cpu, pad_busy_cpus);
         cpu_weight[preferred_cpu]++;
-        mutex_unlock(&isolated_cpus_lock);
+        mutex_unlock(&round_robin_lock);
 
         set_cpus_allowed_ptr(current, cpumask_of(preferred_cpu));
 }
@@ -144,7 +145,7 @@ static void exit_round_robin(unsigned int tsk_index)
 }
 
 static unsigned int idle_pct = 5; /* percentage */
-static unsigned int round_robin_time = 10; /* second */
+static unsigned int round_robin_time = 1; /* second */
 static int power_saving_thread(void *data)
 {
         struct sched_param param = {.sched_priority = 1};
@@ -234,7 +235,7 @@ static int create_power_saving_task(void)
 
         ps_tsks[ps_tsk_num] = kthread_run(power_saving_thread,
                 (void *)(unsigned long)ps_tsk_num,
-                "power_saving/%d", ps_tsk_num);
+                "acpi_pad/%d", ps_tsk_num);
         rc = IS_ERR(ps_tsks[ps_tsk_num]) ? PTR_ERR(ps_tsks[ps_tsk_num]) : 0;
         if (!rc)
                 ps_tsk_num++;