Merge ../linus

Conflicts:

	drivers/cpufreq/cpufreq.c

4 files changed, 29 insertions, 24 deletions

diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
index 2cc71b6..491779a 100644
--- a/drivers/cpufreq/Kconfig
+++ b/drivers/cpufreq/Kconfig
@@ -107,6 +107,7 @@ config CPU_FREQ_GOV_USERSPACE
 
 config CPU_FREQ_GOV_ONDEMAND
 	tristate "'ondemand' cpufreq policy governor"
+	select CPU_FREQ_TABLE
 	help
 	  'ondemand' - This driver adds a dynamic cpufreq policy governor.
 	  The governor does a periodic polling and 
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 0c18ac2..9fb2edf 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -42,9 +42,8 @@ static struct cpufreq_policy *cpufreq_cpu_data[NR_CPUS];
 static DEFINE_SPINLOCK(cpufreq_driver_lock);
 
 /* internal prototypes */
-static int __cpufreq_governor(struct cpufreq_policy *policy,
-						unsigned int event);
-static void handle_update(void *data);
+static int __cpufreq_governor(struct cpufreq_policy *policy, unsigned int event);
+static void handle_update(struct work_struct *work);
 
 /**
  * Two notifier lists: the "policy" list is involved in the
@@ -61,7 +60,7 @@ static int __init init_cpufreq_transition_notifier_list(void)
 	srcu_init_notifier_head(&cpufreq_transition_notifier_list);
 	return 0;
 }
-core_initcall(init_cpufreq_transition_notifier_list);
+pure_initcall(init_cpufreq_transition_notifier_list);
 
 static LIST_HEAD(cpufreq_governor_list);
 static DEFINE_MUTEX (cpufreq_governor_mutex);
@@ -695,7 +694,7 @@ static int cpufreq_add_dev (struct sys_device * sys_dev)
 	mutex_init(&policy->lock);
 	mutex_lock(&policy->lock);
 	init_completion(&policy->kobj_unregister);
-	INIT_WORK(&policy->update, handle_update, (void *)(long)cpu);
+	INIT_WORK(&policy->update, handle_update);
 
 	/* call driver. From then on the cpufreq must be able
 	 * to accept all calls to ->verify and ->setpolicy for this CPU
@@ -925,9 +924,11 @@ static int cpufreq_remove_dev (struct sys_device * sys_dev)
 }
 
 
-static void handle_update(void *data)
+static void handle_update(struct work_struct *work)
 {
-	unsigned int cpu = (unsigned int)(long)data;
+	struct cpufreq_policy *policy =
+		container_of(work, struct cpufreq_policy, update);
+	unsigned int cpu = policy->cpu;
 	dprintk("handle_update for cpu %u called\n", cpu);
 	cpufreq_update_policy(cpu);
 }
@@ -1599,7 +1600,6 @@ int cpufreq_update_policy(unsigned int cpu)
 }
 EXPORT_SYMBOL(cpufreq_update_policy);
 
-#ifdef CONFIG_HOTPLUG_CPU
 static int cpufreq_cpu_callback(struct notifier_block *nfb,
 					unsigned long action, void *hcpu)
 {
@@ -1639,7 +1639,6 @@ static struct notifier_block __cpuinitdata cpufreq_cpu_notifier =
 {
     .notifier_call = cpufreq_cpu_callback,
 };
-#endif /* CONFIG_HOTPLUG_CPU */
 
 /*********************************************************************
  *               REGISTER / UNREGISTER CPUFREQ DRIVER                *
diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index 29905b4..eef0270 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -61,7 +61,7 @@ static unsigned int 				def_sampling_rate;
 #define MAX_SAMPLING_DOWN_FACTOR		(10)
 #define TRANSITION_LATENCY_LIMIT		(10 * 1000)
 
-static void do_dbs_timer(void *data);
+static void do_dbs_timer(struct work_struct *work);
 
 struct cpu_dbs_info_s {
 	struct cpufreq_policy 	*cur_policy;
@@ -84,7 +84,7 @@ static unsigned int dbs_enable;	/* number of CPUs using this policy */
  * is recursive for the same process. -Venki
  */
 static DEFINE_MUTEX 	(dbs_mutex);
-static DECLARE_WORK	(dbs_work, do_dbs_timer, NULL);
+static DECLARE_DELAYED_WORK(dbs_work, do_dbs_timer);
 
 struct dbs_tuners {
 	unsigned int 		sampling_rate;
@@ -427,7 +427,7 @@ static void dbs_check_cpu(int cpu)
 	}
 }
 
-static void do_dbs_timer(void *data)
+static void do_dbs_timer(struct work_struct *work)
 { 
 	int i;
 	lock_cpu_hotplug();
@@ -442,7 +442,6 @@ static void do_dbs_timer(void *data)
 
 static inline void dbs_timer_init(void)
 {
-	INIT_WORK(&dbs_work, do_dbs_timer, NULL);
 	schedule_delayed_work(&dbs_work,
 			usecs_to_jiffies(dbs_tuners_ins.sampling_rate));
 	return;
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index 048ec8b..f697449 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -49,13 +49,17 @@ static unsigned int def_sampling_rate;
 #define DEF_SAMPLING_RATE_LATENCY_MULTIPLIER	(1000)
 #define TRANSITION_LATENCY_LIMIT		(10 * 1000)
 
-static void do_dbs_timer(void *data);
+static void do_dbs_timer(struct work_struct *work);
+
+/* Sampling types */
+enum dbs_sample {DBS_NORMAL_SAMPLE, DBS_SUB_SAMPLE};
 
 struct cpu_dbs_info_s {
 	cputime64_t prev_cpu_idle;
 	cputime64_t prev_cpu_wall;
 	struct cpufreq_policy *cur_policy;
- 	struct work_struct work;
+ 	struct delayed_work work;
+	enum dbs_sample sample_type;
 	unsigned int enable;
 	struct cpufreq_frequency_table *freq_table;
 	unsigned int freq_lo;
@@ -417,30 +421,31 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
 	}
 }
 
-/* Sampling types */
-enum {DBS_NORMAL_SAMPLE, DBS_SUB_SAMPLE};
-
-static void do_dbs_timer(void *data)
+static void do_dbs_timer(struct work_struct *work)
 {
 	unsigned int cpu = smp_processor_id();
 	struct cpu_dbs_info_s *dbs_info = &per_cpu(cpu_dbs_info, cpu);
+	enum dbs_sample sample_type = dbs_info->sample_type;
 	/* We want all CPUs to do sampling nearly on same jiffy */
 	int delay = usecs_to_jiffies(dbs_tuners_ins.sampling_rate);
+
+	/* Permit rescheduling of this work item */
+	work_release(work);
+
 	delay -= jiffies % delay;
 
 	if (!dbs_info->enable)
 		return;
 	/* Common NORMAL_SAMPLE setup */
-	INIT_WORK(&dbs_info->work, do_dbs_timer, (void *)DBS_NORMAL_SAMPLE);
+	dbs_info->sample_type = DBS_NORMAL_SAMPLE;
 	if (!dbs_tuners_ins.powersave_bias ||
-	    (unsigned long) data == DBS_NORMAL_SAMPLE) {
+	    sample_type == DBS_NORMAL_SAMPLE) {
 		lock_cpu_hotplug();
 		dbs_check_cpu(dbs_info);
 		unlock_cpu_hotplug();
 		if (dbs_info->freq_lo) {
 			/* Setup timer for SUB_SAMPLE */
-			INIT_WORK(&dbs_info->work, do_dbs_timer,
-					(void *)DBS_SUB_SAMPLE);
+			dbs_info->sample_type = DBS_SUB_SAMPLE;
 			delay = dbs_info->freq_hi_jiffies;
 		}
 	} else {
@@ -459,7 +464,8 @@ static inline void dbs_timer_init(unsigned int cpu)
 	delay -= jiffies % delay;
 
 	ondemand_powersave_bias_init();
-	INIT_WORK(&dbs_info->work, do_dbs_timer, NULL);
+	INIT_DELAYED_WORK_NAR(&dbs_info->work, do_dbs_timer);
+	dbs_info->sample_type = DBS_NORMAL_SAMPLE;
 	queue_delayed_work_on(cpu, kondemand_wq, &dbs_info->work, delay);
 }