[PATCH v4 21/22] thermal/intel_powerclamp: Remove duplicated code that starts the kthread
From: Petr Mladek <pmladek@suse.com>
Date: 2016-01-25 15:49:46
Also in:
linux-mm, linux-pm, lkml
Subsystem:
the rest, thermal · Maintainers:
Linus Torvalds, Rafael J. Wysocki, Daniel Lezcano
This patch removes a code duplication. It does not modify the functionality. Signed-off-by: Petr Mladek <pmladek@suse.com> CC: Zhang Rui <rui.zhang@intel.com> CC: Eduardo Valentin <edubezval@gmail.com> CC: Jacob Pan <redacted> CC: linux-pm@vger.kernel.org --- drivers/thermal/intel_powerclamp.c | 45 +++++++++++++++++--------------------- 1 file changed, 20 insertions(+), 25 deletions(-)
diff --git a/drivers/thermal/intel_powerclamp.c b/drivers/thermal/intel_powerclamp.c
index 6c79588251d5..cb32c38f9828 100644
--- a/drivers/thermal/intel_powerclamp.c
+++ b/drivers/thermal/intel_powerclamp.c@@ -505,10 +505,27 @@ 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; /* check if pkg cstate counter is completely 0, abort in this case */ if (!has_pkg_state_counter()) {
@@ -530,20 +547,7 @@ 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();
@@ -575,7 +579,6 @@ 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);
@@ -584,15 +587,7 @@ 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;
--
1.8.5.6
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