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authorPetr Mladek <pmladek@suse.com>2016-11-28 13:44:49 -0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-11-29 23:34:10 +0100
commit14f3f7d8cbceedab17f16cf301414fa3384117fe (patch)
tree599f73fb6004a4deade4a1d5ba42e45a20e2b3e3 /drivers/thermal
parentc1de45ca831acee9b72c9320dde447edafadb43f (diff)
downloadlinux-14f3f7d8cbceedab17f16cf301414fa3384117fe.tar.bz2
thermal/intel_powerclamp: Remove duplicated code that starts the kthread
This patch removes code duplication. It does not modify the functionality. Signed-off-by: Petr Mladek <pmladek@suse.com> Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/thermal')
-rw-r--r--drivers/thermal/intel_powerclamp.c45
1 files changed, 20 insertions, 25 deletions
diff --git a/drivers/thermal/intel_powerclamp.c b/drivers/thermal/intel_powerclamp.c
index 0e4dc0afcfd2..63657d193db5 100644
--- a/drivers/thermal/intel_powerclamp.c
+++ b/drivers/thermal/intel_powerclamp.c
@@ -508,10 +508,27 @@ static void poll_pkg_cstate(struct work_struct *dummy)
schedule_delayed_work(&poll_pkg_cstate_work, HZ);
}
+static void start_power_clamp_thread(unsigned long cpu)
+{
+ struct task_struct **p = per_cpu_ptr(powerclamp_thread, cpu);
+ struct task_struct *thread;
+
+ thread = kthread_create_on_node(clamp_thread,
+ (void *) cpu,
+ cpu_to_node(cpu),
+ "kidle_inject/%ld", cpu);
+ if (IS_ERR(thread))
+ return;
+
+ /* bind to cpu here */
+ kthread_bind(thread, cpu);
+ wake_up_process(thread);
+ *p = thread;
+}
+
static int start_power_clamp(void)
{
unsigned long cpu;
- struct task_struct *thread;
set_target_ratio = clamp(set_target_ratio, 0U, MAX_TARGET_RATIO - 1);
/* prevent cpu hotplug */
@@ -527,20 +544,7 @@ static int start_power_clamp(void)
/* start one thread per online cpu */
for_each_online_cpu(cpu) {
- struct task_struct **p =
- per_cpu_ptr(powerclamp_thread, cpu);
-
- thread = kthread_create_on_node(clamp_thread,
- (void *) cpu,
- cpu_to_node(cpu),
- "kidle_inject/%ld", cpu);
- /* bind to cpu here */
- if (likely(!IS_ERR(thread))) {
- kthread_bind(thread, cpu);
- wake_up_process(thread);
- *p = thread;
- }
-
+ start_power_clamp_thread(cpu);
}
put_online_cpus();
@@ -572,7 +576,6 @@ static int powerclamp_cpu_callback(struct notifier_block *nfb,
unsigned long action, void *hcpu)
{
unsigned long cpu = (unsigned long)hcpu;
- struct task_struct *thread;
struct task_struct **percpu_thread =
per_cpu_ptr(powerclamp_thread, cpu);
@@ -581,15 +584,7 @@ static int powerclamp_cpu_callback(struct notifier_block *nfb,
switch (action) {
case CPU_ONLINE:
- thread = kthread_create_on_node(clamp_thread,
- (void *) cpu,
- cpu_to_node(cpu),
- "kidle_inject/%lu", cpu);
- if (likely(!IS_ERR(thread))) {
- kthread_bind(thread, cpu);
- wake_up_process(thread);
- *percpu_thread = thread;
- }
+ start_power_clamp_thread(cpu);
/* prefer BSP as controlling CPU */
if (cpu == 0) {
control_cpu = 0;