1 files changed, 17 insertions, 11 deletions

diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index bf8aa45d4f01..e1cc5113c2ae 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -47,13 +47,17 @@ 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;
@@ -407,30 +411,31 @@ 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 {
@@ -449,7 +454,8 @@ 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);
 }