ACPI: processor: Replace deprecated CPU-hotplug functions

The functions cpu_hotplug_begin, cpu_hotplug_done, get_online_cpus() and
put_online_cpus() have been deprecated during the CPU hotplug rework. They map
directly to cpus_write_lock(), cpus_write_unlock, cpus_read_lock() and
cpus_read_unlock().

Replace deprecated CPU-hotplug functions with the official version.
The behavior remains unchanged.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
index df4adeb..f45979a 100644 (file)
--- a/drivers/acpi/acpi_pad.c
+++ b/drivers/acpi/acpi_pad.c
@@ -249,12 +249,12 @@ static void set_power_saving_task_num(unsigned int num)
 
 static void acpi_pad_idle_cpus(unsigned int num_cpus)
 {
-       get_online_cpus();
+       cpus_read_lock();
 
        num_cpus = min_t(unsigned int, num_cpus, num_online_cpus());
        set_power_saving_task_num(num_cpus);
 
-       put_online_cpus();
+       cpus_read_unlock();
 }
 
 static uint32_t acpi_pad_idle_cpus_num(void)

diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index 2d5bd2a..6737b1c 100644 (file)
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -182,7 +182,7 @@ static int acpi_processor_hotadd_init(struct acpi_processor *pr)
                return -ENODEV;
 
        cpu_maps_update_begin();
-       cpu_hotplug_begin();
+       cpus_write_lock();
 
        ret = acpi_map_cpu(pr->handle, pr->phys_id, pr->acpi_id, &pr->id);
        if (ret)
@@ -203,7 +203,7 @@ static int acpi_processor_hotadd_init(struct acpi_processor *pr)
        pr->flags.need_hotplug_init = 1;
 
 out:
-       cpu_hotplug_done();
+       cpus_write_unlock();
        cpu_maps_update_done();
        return ret;
 }
@@ -454,13 +454,13 @@ static void acpi_processor_remove(struct acpi_device *device)
        per_cpu(processors, pr->id) = NULL;
 
        cpu_maps_update_begin();
-       cpu_hotplug_begin();
+       cpus_write_lock();
 
        /* Remove the CPU. */
        arch_unregister_cpu(pr->id);
        acpi_unmap_cpu(pr->id);
 
-       cpu_hotplug_done();
+       cpus_write_unlock();
        cpu_maps_update_done();
 
        try_offline_node(cpu_to_node(pr->id));

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 095c8ac..f37fba9 100644 (file)
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -1301,7 +1301,7 @@ int acpi_processor_power_state_has_changed(struct acpi_processor *pr)
        if (pr->id == 0 && cpuidle_get_driver() == &acpi_idle_driver) {
 
                /* Protect against cpu-hotplug */
-               get_online_cpus();
+               cpus_read_lock();
                cpuidle_pause_and_lock();
 
                /* Disable all cpuidle devices */
@@ -1330,7 +1330,7 @@ int acpi_processor_power_state_has_changed(struct acpi_processor *pr)
                        }
                }
                cpuidle_resume_and_unlock();
-               put_online_cpus();
+               cpus_read_unlock();
        }
 
        return 0;