CHROMIUM: config: exynos5: Enable s5m-rtc driver.

[cascardo/linux.git] / kernel / cpu.c

diff --git a/kernel/cpu.c b/kernel/cpu.c
index 563f136..44228e0 100644 (file)
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -17,6 +17,26 @@
 #include <linux/gfp.h>
 #include <linux/suspend.h>
 
+static ATOMIC_NOTIFIER_HEAD(idle_notifier);
+
+void idle_notifier_register(struct notifier_block *n)
+{
+       atomic_notifier_chain_register(&idle_notifier, n);
+}
+EXPORT_SYMBOL_GPL(idle_notifier_register);
+
+void idle_notifier_unregister(struct notifier_block *n)
+{
+       atomic_notifier_chain_unregister(&idle_notifier, n);
+}
+EXPORT_SYMBOL_GPL(idle_notifier_unregister);
+
+void idle_notifier_call_chain(unsigned long val)
+{
+       atomic_notifier_call_chain(&idle_notifier, val, NULL);
+}
+EXPORT_SYMBOL_GPL(idle_notifier_call_chain);
+
 #ifdef CONFIG_SMP
 /* Serializes the updates to cpu_online_mask, cpu_present_mask */
 static DEFINE_MUTEX(cpu_add_remove_lock);
@@ -178,8 +198,7 @@ static inline void check_for_tasks(int cpu)
        write_lock_irq(&tasklist_lock);
        for_each_process(p) {
                if (task_cpu(p) == cpu && p->state == TASK_RUNNING &&
-                   (!cputime_eq(p->utime, cputime_zero) ||
-                    !cputime_eq(p->stime, cputime_zero)))
+                   (p->utime || p->stime))
                        printk(KERN_WARNING "Task %s (pid = %d) is on cpu %d "
                                "(state = %ld, flags = %x)\n",
                                p->comm, task_pid_nr(p), cpu,
@@ -380,6 +399,7 @@ out:
        cpu_maps_update_done();
        return err;
 }
+EXPORT_SYMBOL_GPL(cpu_up);
 
 #ifdef CONFIG_PM_SLEEP_SMP
 static cpumask_var_t frozen_cpus;
@@ -470,7 +490,7 @@ out:
        cpu_maps_update_done();
 }
 
-static int alloc_frozen_cpus(void)
+static int __init alloc_frozen_cpus(void)
 {
        if (!alloc_cpumask_var(&frozen_cpus, GFP_KERNEL|__GFP_ZERO))
                return -ENOMEM;
@@ -543,7 +563,7 @@ cpu_hotplug_pm_callback(struct notifier_block *nb,
 }
 
 
-int cpu_hotplug_pm_sync_init(void)
+static int __init cpu_hotplug_pm_sync_init(void)
 {
        pm_notifier(cpu_hotplug_pm_callback, 0);
        return 0;