diff options
author | Mike Travis <travis@sgi.com> | 2008-03-25 15:06:53 -0700 |
---|---|---|
committer | Dave Jones <davej@redhat.com> | 2008-05-19 18:17:49 -0400 |
commit | 7a6aedfac98c6d54ecf97ca1ffb1e6a1f3d26aea (patch) | |
tree | 404f941cae556ce45b53c90bb4192d9fb53bd233 /drivers/cpufreq/cpufreq_stats.c | |
parent | 860da5e578c25d1ab4528c0d1ad13f9969e3490f (diff) | |
download | lwn-7a6aedfac98c6d54ecf97ca1ffb1e6a1f3d26aea.tar.gz lwn-7a6aedfac98c6d54ecf97ca1ffb1e6a1f3d26aea.zip |
[CPUFREQ] change cpu freq arrays to per_cpu variables
Change cpufreq_policy and cpufreq_governor pointer tables
from arrays to per_cpu variables in the cpufreq subsystem.
Also some minor complaints from checkpatch.pl fixed.
Based on:
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'drivers/cpufreq/cpufreq_stats.c')
-rw-r--r-- | drivers/cpufreq/cpufreq_stats.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c index ae70d63a8b26..c0ff97d375d7 100644 --- a/drivers/cpufreq/cpufreq_stats.c +++ b/drivers/cpufreq/cpufreq_stats.c @@ -43,7 +43,7 @@ struct cpufreq_stats { #endif }; -static struct cpufreq_stats *cpufreq_stats_table[NR_CPUS]; +static DEFINE_PER_CPU(struct cpufreq_stats *, cpufreq_stats_table); struct cpufreq_stats_attribute { struct attribute attr; @@ -58,7 +58,7 @@ cpufreq_stats_update (unsigned int cpu) cur_time = get_jiffies_64(); spin_lock(&cpufreq_stats_lock); - stat = cpufreq_stats_table[cpu]; + stat = per_cpu(cpufreq_stats_table, cpu); if (stat->time_in_state) stat->time_in_state[stat->last_index] = cputime64_add(stat->time_in_state[stat->last_index], @@ -71,11 +71,11 @@ cpufreq_stats_update (unsigned int cpu) static ssize_t show_total_trans(struct cpufreq_policy *policy, char *buf) { - struct cpufreq_stats *stat = cpufreq_stats_table[policy->cpu]; + struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, policy->cpu); if (!stat) return 0; return sprintf(buf, "%d\n", - cpufreq_stats_table[stat->cpu]->total_trans); + per_cpu(cpufreq_stats_table, stat->cpu)->total_trans); } static ssize_t @@ -83,7 +83,7 @@ show_time_in_state(struct cpufreq_policy *policy, char *buf) { ssize_t len = 0; int i; - struct cpufreq_stats *stat = cpufreq_stats_table[policy->cpu]; + struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, policy->cpu); if (!stat) return 0; cpufreq_stats_update(stat->cpu); @@ -101,7 +101,7 @@ show_trans_table(struct cpufreq_policy *policy, char *buf) ssize_t len = 0; int i, j; - struct cpufreq_stats *stat = cpufreq_stats_table[policy->cpu]; + struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, policy->cpu); if (!stat) return 0; cpufreq_stats_update(stat->cpu); @@ -170,7 +170,7 @@ freq_table_get_index(struct cpufreq_stats *stat, unsigned int freq) static void cpufreq_stats_free_table(unsigned int cpu) { - struct cpufreq_stats *stat = cpufreq_stats_table[cpu]; + struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, cpu); struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); if (policy && policy->cpu == cpu) sysfs_remove_group(&policy->kobj, &stats_attr_group); @@ -178,7 +178,7 @@ static void cpufreq_stats_free_table(unsigned int cpu) kfree(stat->time_in_state); kfree(stat); } - cpufreq_stats_table[cpu] = NULL; + per_cpu(cpufreq_stats_table, cpu) = NULL; if (policy) cpufreq_cpu_put(policy); } @@ -192,7 +192,7 @@ cpufreq_stats_create_table (struct cpufreq_policy *policy, struct cpufreq_policy *data; unsigned int alloc_size; unsigned int cpu = policy->cpu; - if (cpufreq_stats_table[cpu]) + if (per_cpu(cpufreq_stats_table, cpu)) return -EBUSY; if ((stat = kzalloc(sizeof(struct cpufreq_stats), GFP_KERNEL)) == NULL) return -ENOMEM; @@ -207,7 +207,7 @@ cpufreq_stats_create_table (struct cpufreq_policy *policy, goto error_out; stat->cpu = cpu; - cpufreq_stats_table[cpu] = stat; + per_cpu(cpufreq_stats_table, cpu) = stat; for (i=0; table[i].frequency != CPUFREQ_TABLE_END; i++) { unsigned int freq = table[i].frequency; @@ -251,7 +251,7 @@ error_out: cpufreq_cpu_put(data); error_get_fail: kfree(stat); - cpufreq_stats_table[cpu] = NULL; + per_cpu(cpufreq_stats_table, cpu) = NULL; return ret; } @@ -284,7 +284,7 @@ cpufreq_stat_notifier_trans (struct notifier_block *nb, unsigned long val, if (val != CPUFREQ_POSTCHANGE) return 0; - stat = cpufreq_stats_table[freq->cpu]; + stat = per_cpu(cpufreq_stats_table, freq->cpu); if (!stat) return 0; |