diff options
| -rw-r--r-- | drivers/cpufreq/cpufreq_stats.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c index 00d73fc8e4e2..ca3f24c296a0 100644 --- a/drivers/cpufreq/cpufreq_stats.c +++ b/drivers/cpufreq/cpufreq_stats.c @@ -305,6 +305,27 @@ static int cpufreq_stat_notifier_trans(struct notifier_block *nb, return 0; } +static int cpufreq_stats_create_table_cpu(unsigned int cpu) +{ + struct cpufreq_policy *policy; + struct cpufreq_frequency_table *table; + int ret = -ENODEV; + + policy = cpufreq_cpu_get(cpu); + if (!policy) + return -ENODEV; + + table = cpufreq_frequency_get_table(cpu); + if (!table) + goto out; + + ret = cpufreq_stats_create_table(policy, table); + +out: + cpufreq_cpu_put(policy); + return ret; +} + static int __cpuinit cpufreq_stat_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu) @@ -316,10 +337,14 @@ static int __cpuinit cpufreq_stat_cpu_callback(struct notifier_block *nfb, case CPU_ONLINE_FROZEN: cpufreq_update_policy(cpu); break; - case CPU_DEAD: - case CPU_DEAD_FROZEN: + case CPU_DOWN_PREPARE: + case CPU_DOWN_PREPARE_FROZEN: cpufreq_stats_free_table(cpu); break; + case CPU_DOWN_FAILED: + case CPU_DOWN_FAILED_FROZEN: + cpufreq_stats_create_table_cpu(cpu); + break; } return NOTIFY_OK; } @@ -327,6 +352,7 @@ static int __cpuinit cpufreq_stat_cpu_callback(struct notifier_block *nfb, static struct notifier_block cpufreq_stat_cpu_notifier __refdata = { .notifier_call = cpufreq_stat_cpu_callback, + .priority = 1, }; static struct notifier_block notifier_policy_block = { |