Change the following static arrays sized by NR_CPUS to per_cpu data variables: acpi_cpufreq_data *drv_data[NR_CPUS] Signed-off-by: Mike Travis Reviewed-by: Christoph Lameter --- V1->V2: - (none) --- arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) --- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c +++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c @@ -67,7 +67,8 @@ struct acpi_cpufreq_data { unsigned int cpu_feature; }; -static struct acpi_cpufreq_data *drv_data[NR_CPUS]; +static DEFINE_PER_CPU(struct acpi_cpufreq_data *, drv_data); + /* acpi_perf_data is a pointer to percpu data. */ static struct acpi_processor_performance *acpi_perf_data; @@ -218,14 +219,14 @@ static u32 get_cur_val(cpumask_t mask) if (unlikely(cpus_empty(mask))) return 0; - switch (drv_data[first_cpu(mask)]->cpu_feature) { + switch (per_cpu(drv_data, first_cpu(mask))->cpu_feature) { case SYSTEM_INTEL_MSR_CAPABLE: cmd.type = SYSTEM_INTEL_MSR_CAPABLE; cmd.addr.msr.reg = MSR_IA32_PERF_STATUS; break; case SYSTEM_IO_CAPABLE: cmd.type = SYSTEM_IO_CAPABLE; - perf = drv_data[first_cpu(mask)]->acpi_data; + perf = per_cpu(drv_data, first_cpu(mask))->acpi_data; cmd.addr.io.port = perf->control_register.address; cmd.addr.io.bit_width = perf->control_register.bit_width; break; @@ -325,7 +326,7 @@ static unsigned int get_measured_perf(un #endif - retval = drv_data[cpu]->max_freq * perf_percent / 100; + retval = per_cpu(drv_data, cpu)->max_freq * perf_percent / 100; put_cpu(); set_cpus_allowed(current, saved_mask); @@ -336,7 +337,7 @@ static unsigned int get_measured_perf(un static unsigned int get_cur_freq_on_cpu(unsigned int cpu) { - struct acpi_cpufreq_data *data = drv_data[cpu]; + struct acpi_cpufreq_data *data = per_cpu(drv_data, cpu); unsigned int freq; dprintk("get_cur_freq_on_cpu (%d)\n", cpu); @@ -370,7 +371,7 @@ static unsigned int check_freqs(cpumask_ static int acpi_cpufreq_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) { - struct acpi_cpufreq_data *data = drv_data[policy->cpu]; + struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu); struct acpi_processor_performance *perf; struct cpufreq_freqs freqs; cpumask_t online_policy_cpus; @@ -466,7 +467,7 @@ static int acpi_cpufreq_target(struct cp static int acpi_cpufreq_verify(struct cpufreq_policy *policy) { - struct acpi_cpufreq_data *data = drv_data[policy->cpu]; + struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu); dprintk("acpi_cpufreq_verify\n"); @@ -570,7 +571,7 @@ static int acpi_cpufreq_cpu_init(struct return -ENOMEM; data->acpi_data = percpu_ptr(acpi_perf_data, cpu); - drv_data[cpu] = data; + per_cpu(drv_data, cpu) = data; if (cpu_has(c, X86_FEATURE_CONSTANT_TSC)) acpi_cpufreq_driver.flags |= CPUFREQ_CONST_LOOPS; @@ -714,20 +715,20 @@ err_unreg: acpi_processor_unregister_performance(perf, cpu); err_free: kfree(data); - drv_data[cpu] = NULL; + per_cpu(drv_data, cpu) = NULL; return result; } static int acpi_cpufreq_cpu_exit(struct cpufreq_policy *policy) { - struct acpi_cpufreq_data *data = drv_data[policy->cpu]; + struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu); dprintk("acpi_cpufreq_cpu_exit\n"); if (data) { cpufreq_frequency_table_put_attr(policy->cpu); - drv_data[policy->cpu] = NULL; + per_cpu(drv_data, policy->cpu) = NULL; acpi_processor_unregister_performance(data->acpi_data, policy->cpu); kfree(data); @@ -738,7 +739,7 @@ static int acpi_cpufreq_cpu_exit(struct static int acpi_cpufreq_resume(struct cpufreq_policy *policy) { - struct acpi_cpufreq_data *data = drv_data[policy->cpu]; + struct acpi_cpufreq_data *data = per_cpu(drv_data, policy->cpu); dprintk("acpi_cpufreq_resume\n"); -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/