[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>
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index ae70d63..c0ff97d 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -43,7 +43,7 @@
#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 @@
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 @@
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 @@
{
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
if (val != CPUFREQ_POSTCHANGE)
return 0;
- stat = cpufreq_stats_table[freq->cpu];
+ stat = per_cpu(cpufreq_stats_table, freq->cpu);
if (!stat)
return 0;