[CPUFREQ] Use global sysfs cpufreq structure for conservative governor tunings
Thomas Renninger [Thu, 1 Oct 2009 17:49:28 +0000 (19:49 +0200)]
Same adustments that have been added to the ondemand recently.

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Dave Jones <davej@redhat.com>

drivers/cpufreq/cpufreq_conservative.c

index c7b081b..599a40b 100644 (file)
@@ -164,20 +164,22 @@ static struct notifier_block dbs_cpufreq_notifier_block = {
 };
 
 /************************** sysfs interface ************************/
-static ssize_t show_sampling_rate_max(struct cpufreq_policy *policy, char *buf)
+static ssize_t show_sampling_rate_max(struct kobject *kobj,
+                                     struct attribute *attr, char *buf)
 {
        printk_once(KERN_INFO "CPUFREQ: conservative sampling_rate_max "
                    "sysfs file is deprecated - used by: %s\n", current->comm);
        return sprintf(buf, "%u\n", -1U);
 }
 
-static ssize_t show_sampling_rate_min(struct cpufreq_policy *policy, char *buf)
+static ssize_t show_sampling_rate_min(struct kobject *kobj,
+                                     struct attribute *attr, char *buf)
 {
        return sprintf(buf, "%u\n", min_sampling_rate);
 }
 
 #define define_one_ro(_name)           \
-static struct freq_attr _name =                \
+static struct global_attr _name =      \
 __ATTR(_name, 0444, show_##_name, NULL)
 
 define_one_ro(sampling_rate_max);
@@ -186,7 +188,7 @@ define_one_ro(sampling_rate_min);
 /* cpufreq_conservative Governor Tunables */
 #define show_one(file_name, object)                                    \
 static ssize_t show_##file_name                                                \
-(struct cpufreq_policy *unused, char *buf)                             \
+(struct kobject *kobj, struct attribute *attr, char *buf)              \
 {                                                                      \
        return sprintf(buf, "%u\n", dbs_tuners_ins.object);             \
 }
@@ -197,8 +199,40 @@ show_one(down_threshold, down_threshold);
 show_one(ignore_nice_load, ignore_nice);
 show_one(freq_step, freq_step);
 
-static ssize_t store_sampling_down_factor(struct cpufreq_policy *unused,
-               const char *buf, size_t count)
+/*** delete after deprecation time ***/
+#define DEPRECATION_MSG(file_name)                                     \
+       printk_once(KERN_INFO "CPUFREQ: Per core conservative sysfs "   \
+               "interface is deprecated - " #file_name "\n");
+
+#define show_one_old(file_name)                                                \
+static ssize_t show_##file_name##_old                                  \
+(struct cpufreq_policy *unused, char *buf)                             \
+{                                                                      \
+       printk_once(KERN_INFO "CPUFREQ: Per core conservative sysfs "   \
+               "interface is deprecated - " #file_name "\n");          \
+       return show_##file_name(NULL, NULL, buf);                       \
+}
+show_one_old(sampling_rate);
+show_one_old(sampling_down_factor);
+show_one_old(up_threshold);
+show_one_old(down_threshold);
+show_one_old(ignore_nice_load);
+show_one_old(freq_step);
+show_one_old(sampling_rate_min);
+show_one_old(sampling_rate_max);
+
+#define define_one_ro_old(object, _name)       \
+static struct freq_attr object =               \
+__ATTR(_name, 0444, show_##_name##_old, NULL)
+
+define_one_ro_old(sampling_rate_min_old, sampling_rate_min);
+define_one_ro_old(sampling_rate_max_old, sampling_rate_max);
+
+/*** delete after deprecation time ***/
+
+static ssize_t store_sampling_down_factor(struct kobject *a,
+                                         struct attribute *b,
+                                         const char *buf, size_t count)
 {
        unsigned int input;
        int ret;
@@ -214,8 +248,8 @@ static ssize_t store_sampling_down_factor(struct cpufreq_policy *unused,
        return count;
 }
 
-static ssize_t store_sampling_rate(struct cpufreq_policy *unused,
-               const char *buf, size_t count)
+static ssize_t store_sampling_rate(struct kobject *a, struct attribute *b,
+                                  const char *buf, size_t count)
 {
        unsigned int input;
        int ret;
@@ -231,8 +265,8 @@ static ssize_t store_sampling_rate(struct cpufreq_policy *unused,
        return count;
 }
 
-static ssize_t store_up_threshold(struct cpufreq_policy *unused,
-               const char *buf, size_t count)
+static ssize_t store_up_threshold(struct kobject *a, struct attribute *b,
+                                 const char *buf, size_t count)
 {
        unsigned int input;
        int ret;
@@ -251,8 +285,8 @@ static ssize_t store_up_threshold(struct cpufreq_policy *unused,
        return count;
 }
 
-static ssize_t store_down_threshold(struct cpufreq_policy *unused,
-               const char *buf, size_t count)
+static ssize_t store_down_threshold(struct kobject *a, struct attribute *b,
+                                   const char *buf, size_t count)
 {
        unsigned int input;
        int ret;
@@ -272,8 +306,8 @@ static ssize_t store_down_threshold(struct cpufreq_policy *unused,
        return count;
 }
 
-static ssize_t store_ignore_nice_load(struct cpufreq_policy *policy,
-               const char *buf, size_t count)
+static ssize_t store_ignore_nice_load(struct kobject *a, struct attribute *b,
+                                     const char *buf, size_t count)
 {
        unsigned int input;
        int ret;
@@ -308,8 +342,8 @@ static ssize_t store_ignore_nice_load(struct cpufreq_policy *policy,
        return count;
 }
 
-static ssize_t store_freq_step(struct cpufreq_policy *policy,
-               const char *buf, size_t count)
+static ssize_t store_freq_step(struct kobject *a, struct attribute *b,
+                              const char *buf, size_t count)
 {
        unsigned int input;
        int ret;
@@ -331,7 +365,7 @@ static ssize_t store_freq_step(struct cpufreq_policy *policy,
 }
 
 #define define_one_rw(_name) \
-static struct freq_attr _name = \
+static struct global_attr _name = \
 __ATTR(_name, 0644, show_##_name, store_##_name)
 
 define_one_rw(sampling_rate);
@@ -358,6 +392,53 @@ static struct attribute_group dbs_attr_group = {
        .name = "conservative",
 };
 
+/*** delete after deprecation time ***/
+
+#define write_one_old(file_name)                                       \
+static ssize_t store_##file_name##_old                                 \
+(struct cpufreq_policy *unused, const char *buf, size_t count)         \
+{                                                                      \
+       printk_once(KERN_INFO "CPUFREQ: Per core conservative sysfs "   \
+               "interface is deprecated - " #file_name "\n");  \
+       return store_##file_name(NULL, NULL, buf, count);               \
+}
+write_one_old(sampling_rate);
+write_one_old(sampling_down_factor);
+write_one_old(up_threshold);
+write_one_old(down_threshold);
+write_one_old(ignore_nice_load);
+write_one_old(freq_step);
+
+#define define_one_rw_old(object, _name)       \
+static struct freq_attr object =               \
+__ATTR(_name, 0644, show_##_name##_old, store_##_name##_old)
+
+define_one_rw_old(sampling_rate_old, sampling_rate);
+define_one_rw_old(sampling_down_factor_old, sampling_down_factor);
+define_one_rw_old(up_threshold_old, up_threshold);
+define_one_rw_old(down_threshold_old, down_threshold);
+define_one_rw_old(ignore_nice_load_old, ignore_nice_load);
+define_one_rw_old(freq_step_old, freq_step);
+
+static struct attribute *dbs_attributes_old[] = {
+       &sampling_rate_max_old.attr,
+       &sampling_rate_min_old.attr,
+       &sampling_rate_old.attr,
+       &sampling_down_factor_old.attr,
+       &up_threshold_old.attr,
+       &down_threshold_old.attr,
+       &ignore_nice_load_old.attr,
+       &freq_step_old.attr,
+       NULL
+};
+
+static struct attribute_group dbs_attr_group_old = {
+       .attrs = dbs_attributes_old,
+       .name = "conservative",
+};
+
+/*** delete after deprecation time ***/
+
 /************************** sysfs end ************************/
 
 static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
@@ -530,7 +611,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 
                mutex_lock(&dbs_mutex);
 
-               rc = sysfs_create_group(&policy->kobj, &dbs_attr_group);
+               rc = sysfs_create_group(&policy->kobj, &dbs_attr_group_old);
                if (rc) {
                        mutex_unlock(&dbs_mutex);
                        return rc;
@@ -564,6 +645,13 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                        if (latency == 0)
                                latency = 1;
 
+                       rc = sysfs_create_group(cpufreq_global_kobject,
+                                               &dbs_attr_group);
+                       if (rc) {
+                               mutex_unlock(&dbs_mutex);
+                               return rc;
+                       }
+
                        /*
                         * conservative does not implement micro like ondemand
                         * governor, thus we are bound to jiffes/HZ
@@ -591,7 +679,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                dbs_timer_exit(this_dbs_info);
 
                mutex_lock(&dbs_mutex);
-               sysfs_remove_group(&policy->kobj, &dbs_attr_group);
+               sysfs_remove_group(&policy->kobj, &dbs_attr_group_old);
                dbs_enable--;
                mutex_destroy(&this_dbs_info->timer_mutex);
 
@@ -605,6 +693,9 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
                                        CPUFREQ_TRANSITION_NOTIFIER);
 
                mutex_unlock(&dbs_mutex);
+               if (!dbs_enable)
+                       sysfs_remove_group(cpufreq_global_kobject,
+                                          &dbs_attr_group);
 
                break;