diff options
| -rw-r--r-- | drivers/cpufreq/cpufreq_stats.c | 102 |
1 files changed, 51 insertions, 51 deletions
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c index 3792b2e2f4a8..cdc5233cf0c4 100644 --- a/drivers/cpufreq/cpufreq_stats.c +++ b/drivers/cpufreq/cpufreq_stats.c @@ -31,15 +31,15 @@ struct cpufreq_stats { #endif }; -static int cpufreq_stats_update(struct cpufreq_stats *stat) +static int cpufreq_stats_update(struct cpufreq_stats *stats) { unsigned long long cur_time = get_jiffies_64(); spin_lock(&cpufreq_stats_lock); - if (stat->time_in_state) - stat->time_in_state[stat->last_index] += - cur_time - stat->last_time; - stat->last_time = cur_time; + if (stats->time_in_state) + stats->time_in_state[stats->last_index] += + cur_time - stats->last_time; + stats->last_time = cur_time; spin_unlock(&cpufreq_stats_lock); return 0; } @@ -51,15 +51,15 @@ static ssize_t show_total_trans(struct cpufreq_policy *policy, char *buf) static ssize_t show_time_in_state(struct cpufreq_policy *policy, char *buf) { - struct cpufreq_stats *stat = policy->stats; + struct cpufreq_stats *stats = policy->stats; ssize_t len = 0; int i; - cpufreq_stats_update(stat); - for (i = 0; i < stat->state_num; i++) { - len += sprintf(buf + len, "%u %llu\n", stat->freq_table[i], + cpufreq_stats_update(stats); + for (i = 0; i < stats->state_num; i++) { + len += sprintf(buf + len, "%u %llu\n", stats->freq_table[i], (unsigned long long) - jiffies_64_to_clock_t(stat->time_in_state[i])); + jiffies_64_to_clock_t(stats->time_in_state[i])); } return len; } @@ -67,36 +67,36 @@ static ssize_t show_time_in_state(struct cpufreq_policy *policy, char *buf) #ifdef CONFIG_CPU_FREQ_STAT_DETAILS static ssize_t show_trans_table(struct cpufreq_policy *policy, char *buf) { - struct cpufreq_stats *stat = policy->stats; + struct cpufreq_stats *stats = policy->stats; ssize_t len = 0; int i, j; - cpufreq_stats_update(stat); + cpufreq_stats_update(stats); len += snprintf(buf + len, PAGE_SIZE - len, " From : To\n"); len += snprintf(buf + len, PAGE_SIZE - len, " : "); - for (i = 0; i < stat->state_num; i++) { + for (i = 0; i < stats->state_num; i++) { if (len >= PAGE_SIZE) break; len += snprintf(buf + len, PAGE_SIZE - len, "%9u ", - stat->freq_table[i]); + stats->freq_table[i]); } if (len >= PAGE_SIZE) return PAGE_SIZE; len += snprintf(buf + len, PAGE_SIZE - len, "\n"); - for (i = 0; i < stat->state_num; i++) { + for (i = 0; i < stats->state_num; i++) { if (len >= PAGE_SIZE) break; len += snprintf(buf + len, PAGE_SIZE - len, "%9u: ", - stat->freq_table[i]); + stats->freq_table[i]); - for (j = 0; j < stat->state_num; j++) { + for (j = 0; j < stats->state_num; j++) { if (len >= PAGE_SIZE) break; len += snprintf(buf + len, PAGE_SIZE - len, "%9u ", - stat->trans_table[i*stat->max_state+j]); + stats->trans_table[i*stats->max_state+j]); } if (len >= PAGE_SIZE) break; @@ -125,28 +125,28 @@ static struct attribute_group stats_attr_group = { .name = "stats" }; -static int freq_table_get_index(struct cpufreq_stats *stat, unsigned int freq) +static int freq_table_get_index(struct cpufreq_stats *stats, unsigned int freq) { int index; - for (index = 0; index < stat->max_state; index++) - if (stat->freq_table[index] == freq) + for (index = 0; index < stats->max_state; index++) + if (stats->freq_table[index] == freq) return index; return -1; } static void __cpufreq_stats_free_table(struct cpufreq_policy *policy) { - struct cpufreq_stats *stat = policy->stats; + struct cpufreq_stats *stats = policy->stats; /* Already freed */ - if (!stat) + if (!stats) return; - pr_debug("%s: Free stat table\n", __func__); + pr_debug("%s: Free stats table\n", __func__); sysfs_remove_group(&policy->kobj, &stats_attr_group); - kfree(stat->time_in_state); - kfree(stat); + kfree(stats->time_in_state); + kfree(stats); policy->stats = NULL; } @@ -166,7 +166,7 @@ static void cpufreq_stats_free_table(unsigned int cpu) static int __cpufreq_stats_create_table(struct cpufreq_policy *policy) { unsigned int i, count = 0, ret = 0; - struct cpufreq_stats *stat; + struct cpufreq_stats *stats; unsigned int alloc_size; unsigned int cpu = policy->cpu; struct cpufreq_frequency_table *pos, *table; @@ -179,16 +179,16 @@ static int __cpufreq_stats_create_table(struct cpufreq_policy *policy) if (policy->stats) return -EEXIST; - stat = kzalloc(sizeof(*stat), GFP_KERNEL); - if ((stat) == NULL) + stats = kzalloc(sizeof(*stats), GFP_KERNEL); + if ((stats) == NULL) return -ENOMEM; ret = sysfs_create_group(&policy->kobj, &stats_attr_group); if (ret) goto error_out; - stat->cpu = cpu; - policy->stats = stat; + stats->cpu = cpu; + policy->stats = stats; cpufreq_for_each_valid_entry(pos, table) count++; @@ -198,31 +198,31 @@ static int __cpufreq_stats_create_table(struct cpufreq_policy *policy) #ifdef CONFIG_CPU_FREQ_STAT_DETAILS alloc_size += count * count * sizeof(int); #endif - stat->max_state = count; - stat->time_in_state = kzalloc(alloc_size, GFP_KERNEL); - if (!stat->time_in_state) { + stats->max_state = count; + stats->time_in_state = kzalloc(alloc_size, GFP_KERNEL); + if (!stats->time_in_state) { ret = -ENOMEM; goto error_alloc; } - stat->freq_table = (unsigned int *)(stat->time_in_state + count); + stats->freq_table = (unsigned int *)(stats->time_in_state + count); #ifdef CONFIG_CPU_FREQ_STAT_DETAILS - stat->trans_table = stat->freq_table + count; + stats->trans_table = stats->freq_table + count; #endif i = 0; cpufreq_for_each_valid_entry(pos, table) - if (freq_table_get_index(stat, pos->frequency) == -1) - stat->freq_table[i++] = pos->frequency; - stat->state_num = i; + if (freq_table_get_index(stats, pos->frequency) == -1) + stats->freq_table[i++] = pos->frequency; + stats->state_num = i; spin_lock(&cpufreq_stats_lock); - stat->last_time = get_jiffies_64(); - stat->last_index = freq_table_get_index(stat, policy->cur); + stats->last_time = get_jiffies_64(); + stats->last_index = freq_table_get_index(stats, policy->cur); spin_unlock(&cpufreq_stats_lock); return 0; error_alloc: sysfs_remove_group(&policy->kobj, &stats_attr_group); error_out: - kfree(stat); + kfree(stats); policy->stats = NULL; return ret; } @@ -273,7 +273,7 @@ static int cpufreq_stat_notifier_trans(struct notifier_block *nb, { struct cpufreq_freqs *freq = data; struct cpufreq_policy *policy = cpufreq_cpu_get(freq->cpu); - struct cpufreq_stats *stat; + struct cpufreq_stats *stats; int old_index, new_index; if (!policy) { @@ -289,26 +289,26 @@ static int cpufreq_stat_notifier_trans(struct notifier_block *nb, goto put_policy; } - stat = policy->stats; + stats = policy->stats; - old_index = stat->last_index; - new_index = freq_table_get_index(stat, freq->new); + old_index = stats->last_index; + new_index = freq_table_get_index(stats, freq->new); - /* We can't do stat->time_in_state[-1]= .. */ + /* We can't do stats->time_in_state[-1]= .. */ if (old_index == -1 || new_index == -1) goto put_policy; - cpufreq_stats_update(stat); + cpufreq_stats_update(stats); if (old_index == new_index) goto put_policy; spin_lock(&cpufreq_stats_lock); - stat->last_index = new_index; + stats->last_index = new_index; #ifdef CONFIG_CPU_FREQ_STAT_DETAILS - stat->trans_table[old_index * stat->max_state + new_index]++; + stats->trans_table[old_index * stats->max_state + new_index]++; #endif - stat->total_trans++; + stats->total_trans++; spin_unlock(&cpufreq_stats_lock); put_policy: |