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authorRusty Russell <rusty@rustcorp.com.au>2009-01-04 05:18:06 -0800
committerIngo Molnar <mingo@elte.hu>2009-01-06 09:05:31 +0100
commit835481d9bcd65720b473db6b38746a74a3964218 (patch)
treea6f0fa205542cf73a980a2f8e41d5e908a33b6d6 /arch/x86/kernel
parent5cb0535f1713b51610f2881b17d0fe3656114364 (diff)
cpumask: convert struct cpufreq_policy to cpumask_var_t
Impact: use new cpumask API to reduce memory usage This is part of an effort to reduce structure sizes for machines configured with large NR_CPUS. cpumask_t gets replaced by cpumask_var_t, which is either struct cpumask[1] (small NR_CPUS) or struct cpumask * (large NR_CPUS). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Mike Travis <travis@sgi.com> Acked-by: Dave Jones <davej@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r--arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c10
-rw-r--r--arch/x86/kernel/cpu/cpufreq/p4-clockmod.c8
-rw-r--r--arch/x86/kernel/cpu/cpufreq/powernow-k8.c6
-rw-r--r--arch/x86/kernel/cpu/cpufreq/powernow-k8.h2
-rw-r--r--arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c14
-rw-r--r--arch/x86/kernel/cpu/cpufreq/speedstep-ich.c18
6 files changed, 29 insertions, 29 deletions
diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
index 28102ad1a36..0b31939862d 100644
--- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -411,7 +411,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy,
#ifdef CONFIG_HOTPLUG_CPU
/* cpufreq holds the hotplug lock, so we are safe from here on */
- cpus_and(online_policy_cpus, cpu_online_map, policy->cpus);
+ cpumask_and(&online_policy_cpus, cpu_online_mask, policy->cpus);
#else
online_policy_cpus = policy->cpus;
#endif
@@ -626,15 +626,15 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
*/
if (policy->shared_type == CPUFREQ_SHARED_TYPE_ALL ||
policy->shared_type == CPUFREQ_SHARED_TYPE_ANY) {
- cpumask_copy(&policy->cpus, perf->shared_cpu_map);
+ cpumask_copy(policy->cpus, perf->shared_cpu_map);
}
- cpumask_copy(&policy->related_cpus, perf->shared_cpu_map);
+ cpumask_copy(policy->related_cpus, perf->shared_cpu_map);
#ifdef CONFIG_SMP
dmi_check_system(sw_any_bug_dmi_table);
- if (bios_with_sw_any_bug && cpus_weight(policy->cpus) == 1) {
+ if (bios_with_sw_any_bug && cpumask_weight(policy->cpus) == 1) {
policy->shared_type = CPUFREQ_SHARED_TYPE_ALL;
- policy->cpus = per_cpu(cpu_core_map, cpu);
+ cpumask_copy(policy->cpus, cpu_core_mask(cpu));
}
#endif
diff --git a/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c b/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c
index beea4466b06..b585e04cbc9 100644
--- a/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c
+++ b/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c
@@ -122,7 +122,7 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy,
return 0;
/* notifiers */
- for_each_cpu_mask_nr(i, policy->cpus) {
+ for_each_cpu(i, policy->cpus) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
}
@@ -130,11 +130,11 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy,
/* run on each logical CPU, see section 13.15.3 of IA32 Intel Architecture Software
* Developer's Manual, Volume 3
*/
- for_each_cpu_mask_nr(i, policy->cpus)
+ for_each_cpu(i, policy->cpus)
cpufreq_p4_setdc(i, p4clockmod_table[newstate].index);
/* notifiers */
- for_each_cpu_mask_nr(i, policy->cpus) {
+ for_each_cpu(i, policy->cpus) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
}
@@ -203,7 +203,7 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy)
unsigned int i;
#ifdef CONFIG_SMP
- policy->cpus = per_cpu(cpu_sibling_map, policy->cpu);
+ cpumask_copy(policy->cpus, &per_cpu(cpu_sibling_map, policy->cpu));
#endif
/* Errata workaround */
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index c3c9adbaa26..5c28b37dea1 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@ -1199,10 +1199,10 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
set_cpus_allowed_ptr(current, &oldmask);
if (cpu_family == CPU_HW_PSTATE)
- pol->cpus = cpumask_of_cpu(pol->cpu);
+ cpumask_copy(pol->cpus, cpumask_of(pol->cpu));
else
- pol->cpus = per_cpu(cpu_core_map, pol->cpu);
- data->available_cores = &(pol->cpus);
+ cpumask_copy(pol->cpus, &per_cpu(cpu_core_map, pol->cpu));
+ data->available_cores = pol->cpus;
/* Take a crude guess here.
* That guess was in microseconds, so multiply with 1000 */
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.h b/arch/x86/kernel/cpu/cpufreq/powernow-k8.h
index 65cfb5d7f77..8ecc75b6c7c 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.h
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.h
@@ -53,7 +53,7 @@ struct powernow_k8_data {
/* we need to keep track of associated cores, but let cpufreq
* handle hotplug events - so just point at cpufreq pol->cpus
* structure */
- cpumask_t *available_cores;
+ struct cpumask *available_cores;
};
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
index d2cc4991cba..f08998278a3 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
@@ -492,8 +492,8 @@ static int centrino_target (struct cpufreq_policy *policy,
}
first_cpu = 1;
- for_each_cpu_mask_nr(j, policy->cpus) {
- const cpumask_t *mask;
+ for_each_cpu(j, policy->cpus) {
+ const struct cpumask *mask;
/* cpufreq holds the hotplug lock, so we are safe here */
if (!cpu_online(j))
@@ -504,9 +504,9 @@ static int centrino_target (struct cpufreq_policy *policy,
* Make sure we are running on CPU that wants to change freq
*/
if (policy->shared_type == CPUFREQ_SHARED_TYPE_ANY)
- mask = &policy->cpus;
+ mask = policy->cpus;
else
- mask = &cpumask_of_cpu(j);
+ mask = cpumask_of(j);
set_cpus_allowed_ptr(current, mask);
preempt_disable();
@@ -538,7 +538,7 @@ static int centrino_target (struct cpufreq_policy *policy,
dprintk("target=%dkHz old=%d new=%d msr=%04x\n",
target_freq, freqs.old, freqs.new, msr);
- for_each_cpu_mask_nr(k, policy->cpus) {
+ for_each_cpu(k, policy->cpus) {
if (!cpu_online(k))
continue;
freqs.cpu = k;
@@ -563,7 +563,7 @@ static int centrino_target (struct cpufreq_policy *policy,
preempt_enable();
}
- for_each_cpu_mask_nr(k, policy->cpus) {
+ for_each_cpu(k, policy->cpus) {
if (!cpu_online(k))
continue;
freqs.cpu = k;
@@ -586,7 +586,7 @@ static int centrino_target (struct cpufreq_policy *policy,
tmp = freqs.new;
freqs.new = freqs.old;
freqs.old = tmp;
- for_each_cpu_mask_nr(j, policy->cpus) {
+ for_each_cpu(j, policy->cpus) {
if (!cpu_online(j))
continue;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c
index 04d0376b64b..dedc1e98f16 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c
@@ -229,7 +229,7 @@ static unsigned int speedstep_detect_chipset (void)
return 0;
}
-static unsigned int _speedstep_get(const cpumask_t *cpus)
+static unsigned int _speedstep_get(const struct cpumask *cpus)
{
unsigned int speed;
cpumask_t cpus_allowed;
@@ -244,7 +244,7 @@ static unsigned int _speedstep_get(const cpumask_t *cpus)
static unsigned int speedstep_get(unsigned int cpu)
{
- return _speedstep_get(&cpumask_of_cpu(cpu));
+ return _speedstep_get(cpumask_of(cpu));
}
/**
@@ -267,7 +267,7 @@ static int speedstep_target (struct cpufreq_policy *policy,
if (cpufreq_frequency_table_target(policy, &speedstep_freqs[0], target_freq, relation, &newstate))
return -EINVAL;
- freqs.old = _speedstep_get(&policy->cpus);
+ freqs.old = _speedstep_get(policy->cpus);
freqs.new = speedstep_freqs[newstate].frequency;
freqs.cpu = policy->cpu;
@@ -279,20 +279,20 @@ static int speedstep_target (struct cpufreq_policy *policy,
cpus_allowed = current->cpus_allowed;
- for_each_cpu_mask_nr(i, policy->cpus) {
+ for_each_cpu(i, policy->cpus) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
}
/* switch to physical CPU where state is to be changed */
- set_cpus_allowed_ptr(current, &policy->cpus);
+ set_cpus_allowed_ptr(current, policy->cpus);
speedstep_set_state(newstate);
/* allow to be run on all CPUs */
set_cpus_allowed_ptr(current, &cpus_allowed);
- for_each_cpu_mask_nr(i, policy->cpus) {
+ for_each_cpu(i, policy->cpus) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
}
@@ -322,11 +322,11 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy)
/* only run on CPU to be set, or on its sibling */
#ifdef CONFIG_SMP
- policy->cpus = per_cpu(cpu_sibling_map, policy->cpu);
+ cpumask_copy(policy->cpus, &per_cpu(cpu_sibling_map, policy->cpu));
#endif
cpus_allowed = current->cpus_allowed;
- set_cpus_allowed_ptr(current, &policy->cpus);
+ set_cpus_allowed_ptr(current, policy->cpus);
/* detect low and high frequency and transition latency */
result = speedstep_get_freqs(speedstep_processor,
@@ -339,7 +339,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy)
return result;
/* get current speed setting */
- speed = _speedstep_get(&policy->cpus);
+ speed = _speedstep_get(policy->cpus);
if (!speed)
return -EIO;