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Merge branch 'cpus4096-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

Browse source 
* 'cpus4096-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (31 commits)
  NR_CPUS: Replace NR_CPUS in speedstep-centrino.c
  cpumask: Provide a generic set of CPUMASK_ALLOC macros, FIXUP
  NR_CPUS: Replace NR_CPUS in cpufreq userspace routines
  NR_CPUS: Replace per_cpu(..., smp_processor_id()) with __get_cpu_var
  NR_CPUS: Replace NR_CPUS in arch/x86/kernel/genapic_flat_64.c
  NR_CPUS: Replace NR_CPUS in arch/x86/kernel/genx2apic_uv_x.c
  NR_CPUS: Replace NR_CPUS in arch/x86/kernel/cpu/proc.c
  NR_CPUS: Replace NR_CPUS in arch/x86/kernel/cpu/mcheck/mce_64.c
  cpumask: Optimize cpumask_of_cpu in lib/smp_processor_id.c, fix
  cpumask: Use optimized CPUMASK_ALLOC macros in the centrino_target
  cpumask: Provide a generic set of CPUMASK_ALLOC macros
  cpumask: Optimize cpumask_of_cpu in lib/smp_processor_id.c
  cpumask: Optimize cpumask_of_cpu in kernel/time/tick-common.c
  cpumask: Optimize cpumask_of_cpu in drivers/misc/sgi-xp/xpc_main.c
  cpumask: Optimize cpumask_of_cpu in arch/x86/kernel/ldt.c
  cpumask: Optimize cpumask_of_cpu in arch/x86/kernel/io_apic_64.c
  cpumask: Replace cpumask_of_cpu with cpumask_of_cpu_ptr
  Revert "cpumask: introduce new APIs"
  cpumask: make for_each_cpu_mask a bit smaller
  net: Pass reference to cpumask variable in net/sunrpc/svc.c
  ...

Fix up trivial conflicts in drivers/cpufreq/cpufreq.c manually
This commit is contained in:
Linus Torvalds 2008-07-23 18:37:44 -07:00
commit 26dcce0fab
50 changed files with 441 additions and 269 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
arch/x86/kernel/acpi/cstate.c
View file

@ -73,6 +73,7 @@ int acpi_processor_ffh_cstate_probe(unsigned int cpu,
struct cpuinfo_x86 *c = &cpu_data(cpu);
cpumask_t saved_mask;
cpumask_of_cpu_ptr(new_mask, cpu);
int retval;
unsigned int eax, ebx, ecx, edx;
unsigned int edx_part;
@ -91,7 +92,7 @@ int acpi_processor_ffh_cstate_probe(unsigned int cpu,
/* Make sure we are running on right CPU */
saved_mask = current->cpus_allowed;
retval = set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
retval = set_cpus_allowed_ptr(current, new_mask);
if (retval)
return -1;

16
arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
View file

@ -200,10 +200,12 @@ static void drv_read(struct drv_cmd *cmd)
static void drv_write(struct drv_cmd *cmd)
{
cpumask_t saved_mask = current->cpus_allowed;
cpumask_of_cpu_ptr_declare(cpu_mask);
unsigned int i;
for_each_cpu_mask(i, cmd->mask) {
set_cpus_allowed_ptr(current, &cpumask_of_cpu(i));
for_each_cpu_mask_nr(i, cmd->mask) {
cpumask_of_cpu_ptr_next(cpu_mask, i);
set_cpus_allowed_ptr(current, cpu_mask);
do_drv_write(cmd);
}
@ -267,11 +269,12 @@ static unsigned int get_measured_perf(unsigned int cpu)
} aperf_cur, mperf_cur;
cpumask_t saved_mask;
cpumask_of_cpu_ptr(cpu_mask, cpu);
unsigned int perf_percent;
unsigned int retval;
saved_mask = current->cpus_allowed;
set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
set_cpus_allowed_ptr(current, cpu_mask);
if (get_cpu() != cpu) {
/* We were not able to run on requested processor */
put_cpu();
@ -337,6 +340,7 @@ static unsigned int get_measured_perf(unsigned int cpu)
static unsigned int get_cur_freq_on_cpu(unsigned int cpu)
{
cpumask_of_cpu_ptr(cpu_mask, cpu);
struct acpi_cpufreq_data *data = per_cpu(drv_data, cpu);
unsigned int freq;
unsigned int cached_freq;
@ -349,7 +353,7 @@ static unsigned int get_cur_freq_on_cpu(unsigned int cpu)
}
cached_freq = data->freq_table[data->acpi_data->state].frequency;
freq = extract_freq(get_cur_val(&cpumask_of_cpu(cpu)), data);
freq = extract_freq(get_cur_val(cpu_mask), data);
if (freq != cached_freq) {
/*
* The dreaded BIOS frequency change behind our back.
@ -451,7 +455,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy,
freqs.old = perf->states[perf->state].core_frequency * 1000;
freqs.new = data->freq_table[next_state].frequency;
for_each_cpu_mask(i, cmd.mask) {
for_each_cpu_mask_nr(i, cmd.mask) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
}
@ -466,7 +470,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy,
}
}
for_each_cpu_mask(i, cmd.mask) {
for_each_cpu_mask_nr(i, cmd.mask) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
}

6
arch/x86/kernel/cpu/cpufreq/p4-clockmod.c
View file

@ -122,7 +122,7 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy,
return 0;
/* notifiers */
for_each_cpu_mask(i, policy->cpus) {
for_each_cpu_mask_nr(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(i, policy->cpus)
for_each_cpu_mask_nr(i, policy->cpus)
cpufreq_p4_setdc(i, p4clockmod_table[newstate].index);
/* notifiers */
for_each_cpu_mask(i, policy->cpus) {
for_each_cpu_mask_nr(i, policy->cpus) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
}

23
arch/x86/kernel/cpu/cpufreq/powernow-k8.c
View file

@ -479,11 +479,12 @@ static int core_voltage_post_transition(struct powernow_k8_data *data, u32 reqvi
static int check_supported_cpu(unsigned int cpu)
{
cpumask_t oldmask;
cpumask_of_cpu_ptr(cpu_mask, cpu);
u32 eax, ebx, ecx, edx;
unsigned int rc = 0;
oldmask = current->cpus_allowed;
set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
set_cpus_allowed_ptr(current, cpu_mask);
if (smp_processor_id() != cpu) {
printk(KERN_ERR PFX "limiting to cpu %u failed\n", cpu);
@ -966,7 +967,7 @@ static int transition_frequency_fidvid(struct powernow_k8_data *data, unsigned i
freqs.old = find_khz_freq_from_fid(data->currfid);
freqs.new = find_khz_freq_from_fid(fid);
for_each_cpu_mask(i, *(data->available_cores)) {
for_each_cpu_mask_nr(i, *(data->available_cores)) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
}
@ -974,7 +975,7 @@ static int transition_frequency_fidvid(struct powernow_k8_data *data, unsigned i
res = transition_fid_vid(data, fid, vid);
freqs.new = find_khz_freq_from_fid(data->currfid);
for_each_cpu_mask(i, *(data->available_cores)) {
for_each_cpu_mask_nr(i, *(data->available_cores)) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
}
@ -997,7 +998,7 @@ static int transition_frequency_pstate(struct powernow_k8_data *data, unsigned i
freqs.old = find_khz_freq_from_pstate(data->powernow_table, data->currpstate);
freqs.new = find_khz_freq_from_pstate(data->powernow_table, pstate);
for_each_cpu_mask(i, *(data->available_cores)) {
for_each_cpu_mask_nr(i, *(data->available_cores)) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
}
@ -1005,7 +1006,7 @@ static int transition_frequency_pstate(struct powernow_k8_data *data, unsigned i
res = transition_pstate(data, pstate);
freqs.new = find_khz_freq_from_pstate(data->powernow_table, pstate);
for_each_cpu_mask(i, *(data->available_cores)) {
for_each_cpu_mask_nr(i, *(data->available_cores)) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
}
@ -1016,6 +1017,7 @@ static int transition_frequency_pstate(struct powernow_k8_data *data, unsigned i
static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsigned relation)
{
cpumask_t oldmask;
cpumask_of_cpu_ptr(cpu_mask, pol->cpu);
struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu);
u32 checkfid;
u32 checkvid;
@ -1030,7 +1032,7 @@ static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsi
/* only run on specific CPU from here on */
oldmask = current->cpus_allowed;
set_cpus_allowed_ptr(current, &cpumask_of_cpu(pol->cpu));
set_cpus_allowed_ptr(current, cpu_mask);
if (smp_processor_id() != pol->cpu) {
printk(KERN_ERR PFX "limiting to cpu %u failed\n", pol->cpu);
@ -1105,6 +1107,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
{
struct powernow_k8_data *data;
cpumask_t oldmask;
cpumask_of_cpu_ptr_declare(newmask);
int rc;
if (!cpu_online(pol->cpu))
@ -1156,7 +1159,8 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
/* only run on specific CPU from here on */
oldmask = current->cpus_allowed;
set_cpus_allowed_ptr(current, &cpumask_of_cpu(pol->cpu));
cpumask_of_cpu_ptr_next(newmask, pol->cpu);
set_cpus_allowed_ptr(current, newmask);
if (smp_processor_id() != pol->cpu) {
printk(KERN_ERR PFX "limiting to cpu %u failed\n", pol->cpu);
@ -1178,7 +1182,7 @@ 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);
pol->cpus = *newmask;
else
pol->cpus = per_cpu(cpu_core_map, pol->cpu);
data->available_cores = &(pol->cpus);
@ -1244,6 +1248,7 @@ static unsigned int powernowk8_get (unsigned int cpu)
{
struct powernow_k8_data *data;
cpumask_t oldmask = current->cpus_allowed;
cpumask_of_cpu_ptr(newmask, cpu);
unsigned int khz = 0;
unsigned int first;
@ -1253,7 +1258,7 @@ static unsigned int powernowk8_get (unsigned int cpu)
if (!data)
return -EINVAL;
set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
set_cpus_allowed_ptr(current, newmask);
if (smp_processor_id() != cpu) {
printk(KERN_ERR PFX
"limiting to CPU %d failed in powernowk8_get\n", cpu);

155
arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
View file

@ -28,7 +28,8 @@
#define PFX "speedstep-centrino: "
#define MAINTAINER "cpufreq@lists.linux.org.uk"
#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "speedstep-centrino", msg)
#define dprintk(msg...) \
cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "speedstep-centrino", msg)
#define INTEL_MSR_RANGE (0xffff)
@ -66,11 +67,12 @@ struct cpu_model
struct cpufreq_frequency_table *op_points; /* clock/voltage pairs */
};
static int centrino_verify_cpu_id(const struct cpuinfo_x86 *c, const struct cpu_id *x);
static int centrino_verify_cpu_id(const struct cpuinfo_x86 *c,
const struct cpu_id *x);
/* Operating points for current CPU */
static struct cpu_model *centrino_model[NR_CPUS];
static const struct cpu_id *centrino_cpu[NR_CPUS];
static DEFINE_PER_CPU(struct cpu_model *, centrino_model);
static DEFINE_PER_CPU(const struct cpu_id *, centrino_cpu);
static struct cpufreq_driver centrino_driver;
@ -255,7 +257,7 @@ static int centrino_cpu_init_table(struct cpufreq_policy *policy)
return -ENOENT;
}
centrino_model[policy->cpu] = model;
per_cpu(centrino_model, policy->cpu) = model;
dprintk("found \"%s\": max frequency: %dkHz\n",
model->model_name, model->max_freq);
@ -264,10 +266,14 @@ static int centrino_cpu_init_table(struct cpufreq_policy *policy)
}
#else
static inline int centrino_cpu_init_table(struct cpufreq_policy *policy) { return -ENODEV; }
static inline int centrino_cpu_init_table(struct cpufreq_policy *policy)
{
return -ENODEV;
}
#endif /* CONFIG_X86_SPEEDSTEP_CENTRINO_TABLE */
static int centrino_verify_cpu_id(const struct cpuinfo_x86 *c, const struct cpu_id *x)
static int centrino_verify_cpu_id(const struct cpuinfo_x86 *c,
const struct cpu_id *x)
{
if ((c->x86 == x->x86) &&
(c->x86_model == x->x86_model) &&
@ -286,23 +292,28 @@ static unsigned extract_clock(unsigned msr, unsigned int cpu, int failsafe)
* for centrino, as some DSDTs are buggy.
* Ideally, this can be done using the acpi_data structure.
*/
if ((centrino_cpu[cpu] == &cpu_ids[CPU_BANIAS]) ||
(centrino_cpu[cpu] == &cpu_ids[CPU_DOTHAN_A1]) ||
(centrino_cpu[cpu] == &cpu_ids[CPU_DOTHAN_B0])) {
if ((per_cpu(centrino_cpu, cpu) == &cpu_ids[CPU_BANIAS]) ||
(per_cpu(centrino_cpu, cpu) == &cpu_ids[CPU_DOTHAN_A1]) ||
(per_cpu(centrino_cpu, cpu) == &cpu_ids[CPU_DOTHAN_B0])) {
msr = (msr >> 8) & 0xff;
return msr * 100000;
}
if ((!centrino_model[cpu]) || (!centrino_model[cpu]->op_points))
if ((!per_cpu(centrino_model, cpu)) ||
(!per_cpu(centrino_model, cpu)->op_points))
return 0;
msr &= 0xffff;
for (i=0;centrino_model[cpu]->op_points[i].frequency != CPUFREQ_TABLE_END; i++) {
if (msr == centrino_model[cpu]->op_points[i].index)
return centrino_model[cpu]->op_points[i].frequency;
for (i = 0;
per_cpu(centrino_model, cpu)->op_points[i].frequency
!= CPUFREQ_TABLE_END;
i++) {
if (msr == per_cpu(centrino_model, cpu)->op_points[i].index)
return per_cpu(centrino_model, cpu)->
op_points[i].frequency;
}
if (failsafe)
return centrino_model[cpu]->op_points[i-1].frequency;
return per_cpu(centrino_model, cpu)->op_points[i-1].frequency;
else
return 0;
}
@ -313,9 +324,10 @@ static unsigned int get_cur_freq(unsigned int cpu)
unsigned l, h;
unsigned clock_freq;
cpumask_t saved_mask;
cpumask_of_cpu_ptr(new_mask, cpu);
saved_mask = current->cpus_allowed;
set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
set_cpus_allowed_ptr(current, new_mask);
if (smp_processor_id() != cpu)
return 0;
@ -347,7 +359,8 @@ static int centrino_cpu_init(struct cpufreq_policy *policy)
int i;
/* Only Intel makes Enhanced Speedstep-capable CPUs */
if (cpu->x86_vendor != X86_VENDOR_INTEL || !cpu_has(cpu, X86_FEATURE_EST))
if (cpu->x86_vendor != X86_VENDOR_INTEL ||
!cpu_has(cpu, X86_FEATURE_EST))
return -ENODEV;
if (cpu_has(cpu, X86_FEATURE_CONSTANT_TSC))
@ -361,9 +374,9 @@ static int centrino_cpu_init(struct cpufreq_policy *policy)
break;
if (i != N_IDS)
centrino_cpu[policy->cpu] = &cpu_ids[i];
per_cpu(centrino_cpu, policy->cpu) = &cpu_ids[i];
if (!centrino_cpu[policy->cpu]) {
if (!per_cpu(centrino_cpu, policy->cpu)) {
dprintk("found unsupported CPU with "
"Enhanced SpeedStep: send /proc/cpuinfo to "
MAINTAINER "\n");
@ -386,23 +399,26 @@ static int centrino_cpu_init(struct cpufreq_policy *policy)
/* check to see if it stuck */
rdmsr(MSR_IA32_MISC_ENABLE, l, h);
if (!(l & (1<<16))) {
printk(KERN_INFO PFX "couldn't enable Enhanced SpeedStep\n");
printk(KERN_INFO PFX
"couldn't enable Enhanced SpeedStep\n");
return -ENODEV;
}
}
freq = get_cur_freq(policy->cpu);
policy->cpuinfo.transition_latency = 10000; /* 10uS transition latency */
policy->cpuinfo.transition_latency = 10000;
/* 10uS transition latency */
policy->cur = freq;
dprintk("centrino_cpu_init: cur=%dkHz\n", policy->cur);
ret = cpufreq_frequency_table_cpuinfo(policy, centrino_model[policy->cpu]->op_points);
ret = cpufreq_frequency_table_cpuinfo(policy,
per_cpu(centrino_model, policy->cpu)->op_points);
if (ret)
return (ret);
cpufreq_frequency_table_get_attr(centrino_model[policy->cpu]->op_points, policy->cpu);
cpufreq_frequency_table_get_attr(
per_cpu(centrino_model, policy->cpu)->op_points, policy->cpu);
return 0;
}
@ -411,12 +427,12 @@ static int centrino_cpu_exit(struct cpufreq_policy *policy)
{
unsigned int cpu = policy->cpu;
if (!centrino_model[cpu])
if (!per_cpu(centrino_model, cpu))
return -ENODEV;
cpufreq_frequency_table_put_attr(cpu);
centrino_model[cpu] = NULL;
per_cpu(centrino_model, cpu) = NULL;
return 0;
}
@ -430,17 +446,26 @@ static int centrino_cpu_exit(struct cpufreq_policy *policy)
*/
static int centrino_verify (struct cpufreq_policy *policy)
{
return cpufreq_frequency_table_verify(policy, centrino_model[policy->cpu]->op_points);
return cpufreq_frequency_table_verify(policy,
per_cpu(centrino_model, policy->cpu)->op_points);
}
/**
* centrino_setpolicy - set a new CPUFreq policy
* @policy: new policy
* @target_freq: the target frequency
* @relation: how that frequency relates to achieved frequency (CPUFREQ_RELATION_L or CPUFREQ_RELATION_H)
* @relation: how that frequency relates to achieved frequency
* (CPUFREQ_RELATION_L or CPUFREQ_RELATION_H)
*
* Sets a new CPUFreq policy.
*/
struct allmasks {
cpumask_t online_policy_cpus;
cpumask_t saved_mask;
cpumask_t set_mask;
cpumask_t covered_cpus;
};
static int centrino_target (struct cpufreq_policy *policy,
unsigned int target_freq,
unsigned int relation)
@ -448,48 +473,55 @@ static int centrino_target (struct cpufreq_policy *policy,
unsigned int newstate = 0;
unsigned int msr, oldmsr = 0, h = 0, cpu = policy->cpu;
struct cpufreq_freqs freqs;
cpumask_t online_policy_cpus;
cpumask_t saved_mask;
cpumask_t set_mask;
cpumask_t covered_cpus;
int retval = 0;
unsigned int j, k, first_cpu, tmp;
CPUMASK_ALLOC(allmasks);
CPUMASK_PTR(online_policy_cpus, allmasks);
CPUMASK_PTR(saved_mask, allmasks);
CPUMASK_PTR(set_mask, allmasks);
CPUMASK_PTR(covered_cpus, allmasks);
if (unlikely(centrino_model[cpu] == NULL))
return -ENODEV;
if (unlikely(allmasks == NULL))
return -ENOMEM;
if (unlikely(per_cpu(centrino_model, cpu) == NULL)) {
retval = -ENODEV;
goto out;
}
if (unlikely(cpufreq_frequency_table_target(policy,
centrino_model[cpu]->op_points,
per_cpu(centrino_model, cpu)->op_points,
target_freq,
relation,
&newstate))) {
return -EINVAL;
retval = -EINVAL;
goto out;
}
#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);
cpus_and(*online_policy_cpus, cpu_online_map, policy->cpus);
#else
online_policy_cpus = policy->cpus;
*online_policy_cpus = policy->cpus;
#endif
saved_mask = current->cpus_allowed;
*saved_mask = current->cpus_allowed;
first_cpu = 1;
cpus_clear(covered_cpus);
for_each_cpu_mask(j, online_policy_cpus) {
cpus_clear(*covered_cpus);
for_each_cpu_mask_nr(j, *online_policy_cpus) {
/*
* Support for SMP systems.
* Make sure we are running on CPU that wants to change freq
*/
cpus_clear(set_mask);
cpus_clear(*set_mask);
if (policy->shared_type == CPUFREQ_SHARED_TYPE_ANY)
cpus_or(set_mask, set_mask, online_policy_cpus);
cpus_or(*set_mask, *set_mask, *online_policy_cpus);
else
cpu_set(j, set_mask);
cpu_set(j, *set_mask);
set_cpus_allowed_ptr(current, &set_mask);
set_cpus_allowed_ptr(current, set_mask);
preempt_disable();
if (unlikely(!cpu_isset(smp_processor_id(), set_mask))) {
if (unlikely(!cpu_isset(smp_processor_id(), *set_mask))) {
dprintk("couldn't limit to CPUs in this domain\n");
retval = -EAGAIN;
if (first_cpu) {
@ -500,7 +532,7 @@ static int centrino_target (struct cpufreq_policy *policy,
break;
}
msr = centrino_model[cpu]->op_points[newstate].index;
msr = per_cpu(centrino_model, cpu)->op_points[newstate].index;
if (first_cpu) {
rdmsr(MSR_IA32_PERF_CTL, oldmsr, h);
@ -517,7 +549,7 @@ 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(k, online_policy_cpus) {
for_each_cpu_mask_nr(k, *online_policy_cpus) {
freqs.cpu = k;
cpufreq_notify_transition(&freqs,
CPUFREQ_PRECHANGE);
@ -536,11 +568,11 @@ static int centrino_target (struct cpufreq_policy *policy,
break;
}
cpu_set(j, covered_cpus);
cpu_set(j, *covered_cpus);
preempt_enable();
}
for_each_cpu_mask(k, online_policy_cpus) {
for_each_cpu_mask_nr(k, *online_policy_cpus) {
freqs.cpu = k;
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
}
@ -553,10 +585,12 @@ static int centrino_target (struct cpufreq_policy *policy,
* Best effort undo..
*/
if (!cpus_empty(covered_cpus)) {
for_each_cpu_mask(j, covered_cpus) {
set_cpus_allowed_ptr(current,
&cpumask_of_cpu(j));
if (!cpus_empty(*covered_cpus)) {
cpumask_of_cpu_ptr_declare(new_mask);
for_each_cpu_mask_nr(j, *covered_cpus) {
cpumask_of_cpu_ptr_next(new_mask, j);
set_cpus_allowed_ptr(current, new_mask);
wrmsr(MSR_IA32_PERF_CTL, oldmsr, h);
}
}
@ -564,19 +598,22 @@ static int centrino_target (struct cpufreq_policy *policy,
tmp = freqs.new;
freqs.new = freqs.old;
freqs.old = tmp;
for_each_cpu_mask(j, online_policy_cpus) {
for_each_cpu_mask_nr(j, *online_policy_cpus) {
freqs.cpu = j;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
}
}
set_cpus_allowed_ptr(current, &saved_mask);
return 0;
set_cpus_allowed_ptr(current, saved_mask);
retval = 0;
goto out;
migrate_end:
preempt_enable();
set_cpus_allowed_ptr(current, &saved_mask);
return 0;
set_cpus_allowed_ptr(current, saved_mask);
out:
CPUMASK_FREE(allmasks);
return retval;
}
static struct freq_attr* centrino_attr[] = {

7
arch/x86/kernel/cpu/cpufreq/speedstep-ich.c
View file

@ -244,7 +244,8 @@ static unsigned int _speedstep_get(const cpumask_t *cpus)
static unsigned int speedstep_get(unsigned int cpu)
{
return _speedstep_get(&cpumask_of_cpu(cpu));
cpumask_of_cpu_ptr(newmask, cpu);
return _speedstep_get(newmask);
}
/**
@ -279,7 +280,7 @@ static int speedstep_target (struct cpufreq_policy *policy,
cpus_allowed = current->cpus_allowed;
for_each_cpu_mask(i, policy->cpus) {
for_each_cpu_mask_nr(i, policy->cpus) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
}
@ -292,7 +293,7 @@ static int speedstep_target (struct cpufreq_policy *policy,
/* allow to be run on all CPUs */
set_cpus_allowed_ptr(current, &cpus_allowed);
for_each_cpu_mask(i, policy->cpus) {
for_each_cpu_mask_nr(i, policy->cpus) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
}

5
arch/x86/kernel/cpu/intel_cacheinfo.c
View file

@ -489,7 +489,7 @@ static void __cpuinit cache_remove_shared_cpu_map(unsigned int cpu, int index)
int sibling;
this_leaf = CPUID4_INFO_IDX(cpu, index);
for_each_cpu_mask(sibling, this_leaf->shared_cpu_map) {
for_each_cpu_mask_nr(sibling, this_leaf->shared_cpu_map) {
sibling_leaf = CPUID4_INFO_IDX(sibling, index);
cpu_clear(cpu, sibling_leaf->shared_cpu_map);
}
@ -516,6 +516,7 @@ static int __cpuinit detect_cache_attributes(unsigned int cpu)
unsigned long j;
int retval;
cpumask_t oldmask;
cpumask_of_cpu_ptr(newmask, cpu);
if (num_cache_leaves == 0)
return -ENOENT;
@ -526,7 +527,7 @@ static int __cpuinit detect_cache_attributes(unsigned int cpu)
return -ENOMEM;
oldmask = current->cpus_allowed;
retval = set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
retval = set_cpus_allowed_ptr(current, newmask);
if (retval)
goto out;

2
arch/x86/kernel/cpu/mcheck/mce_64.c
View file

@ -580,7 +580,7 @@ static ssize_t mce_read(struct file *filp, char __user *ubuf, size_t usize,
char __user *buf = ubuf;
int i, err;
cpu_tsc = kmalloc(NR_CPUS * sizeof(long), GFP_KERNEL);
cpu_tsc = kmalloc(nr_cpu_ids * sizeof(long), GFP_KERNEL);
if (!cpu_tsc)
return -ENOMEM;

4
arch/x86/kernel/cpu/mcheck/mce_amd_64.c
View file

@ -527,7 +527,7 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
if (err)
goto out_free;
for_each_cpu_mask(i, b->cpus) {
for_each_cpu_mask_nr(i, b->cpus) {
if (i == cpu)
continue;
@ -617,7 +617,7 @@ static void threshold_remove_bank(unsigned int cpu, int bank)
#endif
/* remove all sibling symlinks before unregistering */
for_each_cpu_mask(i, b->cpus) {
for_each_cpu_mask_nr(i, b->cpus) {
if (i == cpu)
continue;

2
arch/x86/kernel/cpu/proc.c
View file

@ -160,7 +160,7 @@ static void *c_start(struct seq_file *m, loff_t *pos)
{
if (*pos == 0) /* just in case, cpu 0 is not the first */
*pos = first_cpu(cpu_online_map);
if ((*pos) < NR_CPUS && cpu_online(*pos))
if ((*pos) < nr_cpu_ids && cpu_online(*pos))
return &cpu_data(*pos);
return NULL;
}

2
arch/x86/kernel/genapic_flat_64.c
View file

@ -168,7 +168,7 @@ static unsigned int physflat_cpu_mask_to_apicid(cpumask_t cpumask)
* May as well be the first.
*/
cpu = first_cpu(cpumask);
if ((unsigned)cpu < NR_CPUS)
if ((unsigned)cpu < nr_cpu_ids)
return per_cpu(x86_cpu_to_apicid, cpu);
else
return BAD_APICID;

4
arch/x86/kernel/genx2apic_uv_x.c
View file

@ -98,7 +98,7 @@ static void uv_send_IPI_mask(cpumask_t mask, int vector)
{
unsigned int cpu;
for (cpu = 0; cpu < NR_CPUS; ++cpu)
for_each_possible_cpu(cpu)
if (cpu_isset(cpu, mask))
uv_send_IPI_one(cpu, vector);
}
@ -132,7 +132,7 @@ static unsigned int uv_cpu_mask_to_apicid(cpumask_t cpumask)
* May as well be the first.
*/
cpu = first_cpu(cpumask);
if ((unsigned)cpu < NR_CPUS)
if ((unsigned)cpu < nr_cpu_ids)
return per_cpu(x86_cpu_to_apicid, cpu);
else
return BAD_APICID;

12
arch/x86/kernel/io_apic_64.c
View file

@ -732,7 +732,7 @@ static int __assign_irq_vector(int irq, cpumask_t mask)
return 0;
}
for_each_cpu_mask(cpu, mask) {
for_each_cpu_mask_nr(cpu, mask) {
cpumask_t domain, new_mask;
int new_cpu;
int vector, offset;
@ -753,7 +753,7 @@ static int __assign_irq_vector(int irq, cpumask_t mask)
continue;
if (vector == IA32_SYSCALL_VECTOR)
goto next;
for_each_cpu_mask(new_cpu, new_mask)
for_each_cpu_mask_nr(new_cpu, new_mask)
if (per_cpu(vector_irq, new_cpu)[vector] != -1)
goto next;
/* Found one! */
@ -763,7 +763,7 @@ static int __assign_irq_vector(int irq, cpumask_t mask)
cfg->move_in_progress = 1;
cfg->old_domain = cfg->domain;
}
for_each_cpu_mask(new_cpu, new_mask)
for_each_cpu_mask_nr(new_cpu, new_mask)
per_cpu(vector_irq, new_cpu)[vector] = irq;
cfg->vector = vector;
cfg->domain = domain;
@ -795,7 +795,7 @@ static void __clear_irq_vector(int irq)
vector = cfg->vector;
cpus_and(mask, cfg->domain, cpu_online_map);
for_each_cpu_mask(cpu, mask)
for_each_cpu_mask_nr(cpu, mask)
per_cpu(vector_irq, cpu)[vector] = -1;
cfg->vector = 0;
@ -1373,12 +1373,10 @@ static unsigned int startup_ioapic_irq(unsigned int irq)
static int ioapic_retrigger_irq(unsigned int irq)
{
struct irq_cfg *cfg = &irq_cfg[irq];
cpumask_t mask;
unsigned long flags;
spin_lock_irqsave(&vector_lock, flags);
mask = cpumask_of_cpu(first_cpu(cfg->domain));
send_IPI_mask(mask, cfg->vector);
send_IPI_mask(cpumask_of_cpu(first_cpu(cfg->domain)), cfg->vector);
spin_unlock_irqrestore(&vector_lock, flags);
return 1;

6
arch/x86/kernel/ldt.c
View file

@ -62,12 +62,12 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
if (reload) {
#ifdef CONFIG_SMP
cpumask_t mask;
cpumask_of_cpu_ptr_declare(mask);
preempt_disable();
load_LDT(pc);
mask = cpumask_of_cpu(smp_processor_id());
if (!cpus_equal(current->mm->cpu_vm_mask, mask))
cpumask_of_cpu_ptr_next(mask, smp_processor_id());
if (!cpus_equal(current->mm->cpu_vm_mask, *mask))
smp_call_function(flush_ldt, current->mm, 1);
preempt_enable();
#else

13
arch/x86/kernel/microcode.c
View file

@ -388,6 +388,7 @@ static int do_microcode_update (void)
void *new_mc = NULL;
int cpu;
cpumask_t old;
cpumask_of_cpu_ptr_declare(newmask);
old = current->cpus_allowed;
@ -404,7 +405,8 @@ static int do_microcode_update (void)
if (!uci->valid)
continue;
set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
cpumask_of_cpu_ptr_next(newmask, cpu);
set_cpus_allowed_ptr(current, newmask);
error = get_maching_microcode(new_mc, cpu);
if (error < 0)
goto out;
@ -574,6 +576,7 @@ static int apply_microcode_check_cpu(int cpu)
struct cpuinfo_x86 *c = &cpu_data(cpu);
struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
cpumask_t old;
cpumask_of_cpu_ptr(newmask, cpu);
unsigned int val[2];
int err = 0;
@ -582,7 +585,7 @@ static int apply_microcode_check_cpu(int cpu)
return 0;
old = current->cpus_allowed;
set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
set_cpus_allowed_ptr(current, newmask);
/* Check if the microcode we have in memory matches the CPU */
if (c->x86_vendor != X86_VENDOR_INTEL || c->x86 < 6 ||
@ -620,11 +623,12 @@ static int apply_microcode_check_cpu(int cpu)
static void microcode_init_cpu(int cpu, int resume)
{
cpumask_t old;
cpumask_of_cpu_ptr(newmask, cpu);
struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
old = current->cpus_allowed;
set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
set_cpus_allowed_ptr(current, newmask);
mutex_lock(&microcode_mutex);
collect_cpu_info(cpu);
if (uci->valid && system_state == SYSTEM_RUNNING && !resume)
@ -658,11 +662,12 @@ static ssize_t reload_store(struct sys_device *dev,
return -EINVAL;
if (val == 1) {
cpumask_t old;
cpumask_of_cpu_ptr(newmask, cpu);
old = current->cpus_allowed;
get_online_cpus();
set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
set_cpus_allowed_ptr(current, newmask);
mutex_lock(&microcode_mutex);
if (uci->valid)

14
arch/x86/kernel/reboot.c
View file

@ -411,24 +411,28 @@ void native_machine_shutdown(void)
{
/* Stop the cpus and apics */
#ifdef CONFIG_SMP
int reboot_cpu_id;
/* The boot cpu is always logical cpu 0 */
reboot_cpu_id = 0;
int reboot_cpu_id = 0;
cpumask_of_cpu_ptr(newmask, reboot_cpu_id);
#ifdef CONFIG_X86_32
/* See if there has been given a command line override */
if ((reboot_cpu != -1) && (reboot_cpu < NR_CPUS) &&
cpu_online(reboot_cpu))
cpu_online(reboot_cpu)) {
reboot_cpu_id = reboot_cpu;
cpumask_of_cpu_ptr_next(newmask, reboot_cpu_id);
}
#endif
/* Make certain the cpu I'm about to reboot on is online */
if (!cpu_online(reboot_cpu_id))
if (!cpu_online(reboot_cpu_id)) {
reboot_cpu_id = smp_processor_id();
cpumask_of_cpu_ptr_next(newmask, reboot_cpu_id);
}
/* Make certain I only run on the appropriate processor */
set_cpus_allowed_ptr(current, &cpumask_of_cpu(reboot_cpu_id));
set_cpus_allowed_ptr(current, newmask);
/* O.K Now that I'm on the appropriate processor,
* stop all of the others.

8
arch/x86/kernel/smpboot.c
View file

@ -438,7 +438,7 @@ void __cpuinit set_cpu_sibling_map(int cpu)
cpu_set(cpu, cpu_sibling_setup_map);
if (smp_num_siblings > 1) {
for_each_cpu_mask(i, cpu_sibling_setup_map) {
for_each_cpu_mask_nr(i, cpu_sibling_setup_map) {
if (c->phys_proc_id == cpu_data(i).phys_proc_id &&
c->cpu_core_id == cpu_data(i).cpu_core_id) {
cpu_set(i, per_cpu(cpu_sibling_map, cpu));
@ -461,7 +461,7 @@ void __cpuinit set_cpu_sibling_map(int cpu)
return;
}
for_each_cpu_mask(i, cpu_sibling_setup_map) {
for_each_cpu_mask_nr(i, cpu_sibling_setup_map) {
if (per_cpu(cpu_llc_id, cpu) != BAD_APICID &&
per_cpu(cpu_llc_id, cpu) == per_cpu(cpu_llc_id, i)) {
cpu_set(i, c->llc_shared_map);
@ -1219,7 +1219,7 @@ static void remove_siblinginfo(int cpu)
int sibling;
struct cpuinfo_x86 *c = &cpu_data(cpu);
for_each_cpu_mask(sibling, per_cpu(cpu_core_map, cpu)) {
for_each_cpu_mask_nr(sibling, per_cpu(cpu_core_map, cpu)) {
cpu_clear(cpu, per_cpu(cpu_core_map, sibling));
/*/
* last thread sibling in this cpu core going down
@ -1228,7 +1228,7 @@ static void remove_siblinginfo(int cpu)
cpu_data(sibling).booted_cores--;
}
for_each_cpu_mask(sibling, per_cpu(cpu_sibling_map, cpu))
for_each_cpu_mask_nr(sibling, per_cpu(cpu_sibling_map, cpu))
cpu_clear(cpu, per_cpu(cpu_sibling_map, sibling));
cpus_clear(per_cpu(cpu_sibling_map, cpu));
cpus_clear(per_cpu(cpu_core_map, cpu));

4
arch/x86/xen/smp.c
View file

@ -367,7 +367,7 @@ static void xen_send_IPI_mask(cpumask_t mask, enum ipi_vector vector)
cpus_and(mask, mask, cpu_online_map);
for_each_cpu_mask(cpu, mask)
for_each_cpu_mask_nr(cpu, mask)
xen_send_IPI_one(cpu, vector);
}
@ -378,7 +378,7 @@ static void xen_smp_send_call_function_ipi(cpumask_t mask)
xen_send_IPI_mask(mask, XEN_CALL_FUNCTION_VECTOR);
/* Make sure other vcpus get a chance to run if they need to. */
for_each_cpu_mask(cpu, mask) {
for_each_cpu_mask_nr(cpu, mask) {
if (xen_vcpu_stolen(cpu)) {
HYPERVISOR_sched_op(SCHEDOP_yield, 0);
break;

17
drivers/acpi/processor_throttling.c
View file

@ -827,6 +827,7 @@ static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr)
static int acpi_processor_get_throttling(struct acpi_processor *pr)
{
cpumask_t saved_mask;
cpumask_of_cpu_ptr_declare(new_mask);
int ret;
if (!pr)
@ -838,7 +839,8 @@ static int acpi_processor_get_throttling(struct acpi_processor *pr)
* Migrate task to the cpu pointed by pr.
*/
saved_mask = current->cpus_allowed;
set_cpus_allowed_ptr(current, &cpumask_of_cpu(pr->id));
cpumask_of_cpu_ptr_next(new_mask, pr->id);
set_cpus_allowed_ptr(current, new_mask);
ret = pr->throttling.acpi_processor_get_throttling(pr);
/* restore the previous state */
set_cpus_allowed_ptr(current, &saved_mask);
@ -987,6 +989,7 @@ static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr,
int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
{
cpumask_t saved_mask;
cpumask_of_cpu_ptr_declare(new_mask);
int ret = 0;
unsigned int i;
struct acpi_processor *match_pr;
@ -1013,7 +1016,7 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
* affected cpu in order to get one proper T-state.
* The notifier event is THROTTLING_PRECHANGE.
*/
for_each_cpu_mask(i, online_throttling_cpus) {
for_each_cpu_mask_nr(i, online_throttling_cpus) {
t_state.cpu = i;
acpi_processor_throttling_notifier(THROTTLING_PRECHANGE,
&t_state);
@ -1025,7 +1028,8 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
* it can be called only for the cpu pointed by pr.
*/
if (p_throttling->shared_type == DOMAIN_COORD_TYPE_SW_ANY) {
set_cpus_allowed_ptr(current, &cpumask_of_cpu(pr->id));
cpumask_of_cpu_ptr_next(new_mask, pr->id);
set_cpus_allowed_ptr(current, new_mask);
ret = p_throttling->acpi_processor_set_throttling(pr,
t_state.target_state);
} else {
@ -1034,7 +1038,7 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
* it is necessary to set T-state for every affected
* cpus.
*/
for_each_cpu_mask(i, online_throttling_cpus) {
for_each_cpu_mask_nr(i, online_throttling_cpus) {
match_pr = per_cpu(processors, i);
/*
* If the pointer is invalid, we will report the
@ -1056,7 +1060,8 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
continue;
}
t_state.cpu = i;
set_cpus_allowed_ptr(current, &cpumask_of_cpu(i));
cpumask_of_cpu_ptr_next(new_mask, i);
set_cpus_allowed_ptr(current, new_mask);
ret = match_pr->throttling.
acpi_processor_set_throttling(
match_pr, t_state.target_state);
@ -1068,7 +1073,7 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
* affected cpu to update the T-states.
* The notifier event is THROTTLING_POSTCHANGE
*/
for_each_cpu_mask(i, online_throttling_cpus) {
for_each_cpu_mask_nr(i, online_throttling_cpus) {
t_state.cpu = i;
acpi_processor_throttling_notifier(THROTTLING_POSTCHANGE,
&t_state);

4
drivers/base/cpu.c
View file

@ -121,14 +121,14 @@ static ssize_t print_cpus_##type(struct sysdev_class *class, char *buf) \
{ \
return print_cpus_map(buf, &cpu_##type##_map); \
} \
struct sysdev_class_attribute attr_##type##_map = \
static struct sysdev_class_attribute attr_##type##_map = \
_SYSDEV_CLASS_ATTR(type, 0444, print_cpus_##type, NULL)
print_cpus_func(online);
print_cpus_func(possible);
print_cpus_func(present);
struct sysdev_class_attribute *cpu_state_attr[] = {
static struct sysdev_class_attribute *cpu_state_attr[] = {
&attr_online_map,
&attr_possible_map,
&attr_present_map,

14
drivers/cpufreq/cpufreq.c
View file

@ -589,7 +589,7 @@ static ssize_t show_cpus(cpumask_t mask, char *buf)
ssize_t i = 0;
unsigned int cpu;
for_each_cpu_mask(cpu, mask) {
for_each_cpu_mask_nr(cpu, mask) {
if (i)
i += scnprintf(&buf[i], (PAGE_SIZE - i - 2), " ");
i += scnprintf(&buf[i], (PAGE_SIZE - i - 2), "%u", cpu);
@ -835,7 +835,7 @@ static int cpufreq_add_dev(struct sys_device *sys_dev)
}
#endif
for_each_cpu_mask(j, policy->cpus) {
for_each_cpu_mask_nr(j, policy->cpus) {
if (cpu == j)
continue;
@ -898,14 +898,14 @@ static int cpufreq_add_dev(struct sys_device *sys_dev)
}
spin_lock_irqsave(&cpufreq_driver_lock, flags);
for_each_cpu_mask(j, policy->cpus) {
for_each_cpu_mask_nr(j, policy->cpus) {
per_cpu(cpufreq_cpu_data, j) = policy;
per_cpu(policy_cpu, j) = policy->cpu;
}
spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
/* symlink affected CPUs */
for_each_cpu_mask(j, policy->cpus) {
for_each_cpu_mask_nr(j, policy->cpus) {
if (j == cpu)
continue;
if (!cpu_online(j))
@ -945,7 +945,7 @@ static int cpufreq_add_dev(struct sys_device *sys_dev)
err_out_unregister:
spin_lock_irqsave(&cpufreq_driver_lock, flags);
for_each_cpu_mask(j, policy->cpus)
for_each_cpu_mask_nr(j, policy->cpus)
per_cpu(cpufreq_cpu_data, j) = NULL;
spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
@ -1028,7 +1028,7 @@ static int __cpufreq_remove_dev(struct sys_device *sys_dev)
* the sysfs links afterwards.
*/
if (unlikely(cpus_weight(data->cpus) > 1)) {
for_each_cpu_mask(j, data->cpus) {
for_each_cpu_mask_nr(j, data->cpus) {
if (j == cpu)
continue;
per_cpu(cpufreq_cpu_data, j) = NULL;
@ -1038,7 +1038,7 @@ static int __cpufreq_remove_dev(struct sys_device *sys_dev)
spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
if (unlikely(cpus_weight(data->cpus) > 1)) {
for_each_cpu_mask(j, data->cpus) {
for_each_cpu_mask_nr(j, data->cpus) {
if (j == cpu)
continue;
dprintk("removing link for cpu %u\n", j);

2
drivers/cpufreq/cpufreq_conservative.c
View file

@ -497,7 +497,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
return rc;
}
for_each_cpu_mask(j, policy->cpus) {
for_each_cpu_mask_nr(j, policy->cpus) {
struct cpu_dbs_info_s *j_dbs_info;
j_dbs_info = &per_cpu(cpu_dbs_info, j);
j_dbs_info->cur_policy = policy;

4
drivers/cpufreq/cpufreq_ondemand.c
View file

@ -367,7 +367,7 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
/* Get Idle Time */
idle_ticks = UINT_MAX;
for_each_cpu_mask(j, policy->cpus) {
for_each_cpu_mask_nr(j, policy->cpus) {
cputime64_t total_idle_ticks;
unsigned int tmp_idle_ticks;
struct cpu_dbs_info_s *j_dbs_info;
@ -521,7 +521,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
return rc;
}
for_each_cpu_mask(j, policy->cpus) {
for_each_cpu_mask_nr(j, policy->cpus) {
struct cpu_dbs_info_s *j_dbs_info;
j_dbs_info = &per_cpu(cpu_dbs_info, j);
j_dbs_info->cur_policy = policy;

79
drivers/cpufreq/cpufreq_userspace.c
View file

@ -30,16 +30,18 @@
/**
* A few values needed by the userspace governor
*/
static unsigned int cpu_max_freq[NR_CPUS];
static unsigned int cpu_min_freq[NR_CPUS];
static unsigned int cpu_cur_freq[NR_CPUS]; /* current CPU freq */
static unsigned int cpu_set_freq[NR_CPUS]; /* CPU freq desired by userspace */
static unsigned int cpu_is_managed[NR_CPUS];
static DEFINE_PER_CPU(unsigned int, cpu_max_freq);
static DEFINE_PER_CPU(unsigned int, cpu_min_freq);
static DEFINE_PER_CPU(unsigned int, cpu_cur_freq); /* current CPU freq */
static DEFINE_PER_CPU(unsigned int, cpu_set_freq); /* CPU freq desired by
userspace */
static DEFINE_PER_CPU(unsigned int, cpu_is_managed);
static DEFINE_MUTEX (userspace_mutex);
static int cpus_using_userspace_governor;
#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_GOVERNOR, "userspace", msg)
#define dprintk(msg...) \
cpufreq_debug_printk(CPUFREQ_DEBUG_GOVERNOR, "userspace", msg)
/* keep track of frequency transitions */
static int
@ -48,12 +50,12 @@ userspace_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
{
struct cpufreq_freqs *freq = data;
if (!cpu_is_managed[freq->cpu])
if (!per_cpu(cpu_is_managed, freq->cpu))
return 0;
dprintk("saving cpu_cur_freq of cpu %u to be %u kHz\n",
freq->cpu, freq->new);
cpu_cur_freq[freq->cpu] = freq->new;
per_cpu(cpu_cur_freq, freq->cpu) = freq->new;
return 0;
}
@ -77,15 +79,15 @@ static int cpufreq_set(struct cpufreq_policy *policy, unsigned int freq)
dprintk("cpufreq_set for cpu %u, freq %u kHz\n", policy->cpu, freq);
mutex_lock(&userspace_mutex);
if (!cpu_is_managed[policy->cpu])
if (!per_cpu(cpu_is_managed, policy->cpu))
goto err;
cpu_set_freq[policy->cpu] = freq;
per_cpu(cpu_set_freq, policy->cpu) = freq;
if (freq < cpu_min_freq[policy->cpu])
freq = cpu_min_freq[policy->cpu];
if (freq > cpu_max_freq[policy->cpu])
freq = cpu_max_freq[policy->cpu];
if (freq < per_cpu(cpu_min_freq, policy->cpu))
freq = per_cpu(cpu_min_freq, policy->cpu);
if (freq > per_cpu(cpu_max_freq, policy->cpu))
freq = per_cpu(cpu_max_freq, policy->cpu);
/*
* We're safe from concurrent calls to ->target() here
@ -104,7 +106,7 @@ static int cpufreq_set(struct cpufreq_policy *policy, unsigned int freq)
static ssize_t show_speed(struct cpufreq_policy *policy, char *buf)
{
return sprintf(buf, "%u\n", cpu_cur_freq[policy->cpu]);
return sprintf(buf, "%u\n", per_cpu(cpu_cur_freq, policy->cpu));
}
static int cpufreq_governor_userspace(struct cpufreq_policy *policy,
@ -127,12 +129,17 @@ static int cpufreq_governor_userspace(struct cpufreq_policy *policy,
}
cpus_using_userspace_governor++;
cpu_is_managed[cpu] = 1;
cpu_min_freq[cpu] = policy->min;
cpu_max_freq[cpu] = policy->max;
cpu_cur_freq[cpu] = policy->cur;
cpu_set_freq[cpu] = policy->cur;
dprintk("managing cpu %u started (%u - %u kHz, currently %u kHz)\n", cpu, cpu_min_freq[cpu], cpu_max_freq[cpu], cpu_cur_freq[cpu]);
per_cpu(cpu_is_managed, cpu) = 1;
per_cpu(cpu_min_freq, cpu) = policy->min;
per_cpu(cpu_max_freq, cpu) = policy->max;
per_cpu(cpu_cur_freq, cpu) = policy->cur;
per_cpu(cpu_set_freq, cpu) = policy->cur;
dprintk("managing cpu %u started "
"(%u - %u kHz, currently %u kHz)\n",
cpu,
per_cpu(cpu_min_freq, cpu),
per_cpu(cpu_max_freq, cpu),
per_cpu(cpu_cur_freq, cpu));
mutex_unlock(&userspace_mutex);
break;
@ -145,34 +152,34 @@ static int cpufreq_governor_userspace(struct cpufreq_policy *policy,
CPUFREQ_TRANSITION_NOTIFIER);
}
cpu_is_managed[cpu] = 0;
cpu_min_freq[cpu] = 0;
cpu_max_freq[cpu] = 0;
cpu_set_freq[cpu] = 0;
per_cpu(cpu_is_managed, cpu) = 0;
per_cpu(cpu_min_freq, cpu) = 0;
per_cpu(cpu_max_freq, cpu) = 0;
per_cpu(cpu_set_freq, cpu) = 0;
dprintk("managing cpu %u stopped\n", cpu);
mutex_unlock(&userspace_mutex);
break;
case CPUFREQ_GOV_LIMITS:
mutex_lock(&userspace_mutex);
dprintk("limit event for cpu %u: %u - %u kHz,"
dprintk("limit event for cpu %u: %u - %u kHz, "
"currently %u kHz, last set to %u kHz\n",
cpu, policy->min, policy->max,
cpu_cur_freq[cpu], cpu_set_freq[cpu]);
if (policy->max < cpu_set_freq[cpu]) {
per_cpu(cpu_cur_freq, cpu),
per_cpu(cpu_set_freq, cpu));
if (policy->max < per_cpu(cpu_set_freq, cpu)) {
__cpufreq_driver_target(policy, policy->max,
CPUFREQ_RELATION_H);
}
else if (policy->min > cpu_set_freq[cpu]) {
} else if (policy->min > per_cpu(cpu_set_freq, cpu)) {
__cpufreq_driver_target(policy, policy->min,
CPUFREQ_RELATION_L);
}
else {
__cpufreq_driver_target(policy, cpu_set_freq[cpu],
} else {
__cpufreq_driver_target(policy,
per_cpu(cpu_set_freq, cpu),
CPUFREQ_RELATION_L);
}
cpu_min_freq[cpu] = policy->min;
cpu_max_freq[cpu] = policy->max;
cpu_cur_freq[cpu] = policy->cur;
per_cpu(cpu_min_freq, cpu) = policy->min;
per_cpu(cpu_max_freq, cpu) = policy->max;
per_cpu(cpu_cur_freq, cpu) = policy->cur;
mutex_unlock(&userspace_mutex);
break;
}

3
drivers/firmware/dcdbas.c
View file

@ -254,6 +254,7 @@ static ssize_t host_control_on_shutdown_store(struct device *dev,
static int smi_request(struct smi_cmd *smi_cmd)
{
cpumask_t old_mask;
cpumask_of_cpu_ptr(new_mask, 0);
int ret = 0;
if (smi_cmd->magic != SMI_CMD_MAGIC) {
@ -264,7 +265,7 @@ static int smi_request(struct smi_cmd *smi_cmd)
/* SMI requires CPU 0 */
old_mask = current->cpus_allowed;
set_cpus_allowed_ptr(current, &cpumask_of_cpu(0));
set_cpus_allowed_ptr(current, new_mask);
if (smp_processor_id() != 0) {
dev_dbg(&dcdbas_pdev->dev, "%s: failed to get CPU 0\n",
__func__);

4
drivers/infiniband/hw/ehca/ehca_irq.c
View file

@ -646,8 +646,8 @@ static inline int find_next_online_cpu(struct ehca_comp_pool *pool)
ehca_dmp(&cpu_online_map, sizeof(cpumask_t), "");
spin_lock_irqsave(&pool->last_cpu_lock, flags);
cpu = next_cpu(pool->last_cpu, cpu_online_map);
if (cpu == NR_CPUS)
cpu = next_cpu_nr(pool->last_cpu, cpu_online_map);
if (cpu >= nr_cpu_ids)
cpu = first_cpu(cpu_online_map);
pool->last_cpu = cpu;
spin_unlock_irqrestore(&pool->last_cpu_lock, flags);

3
drivers/misc/sgi-xp/xpc_main.c
View file

@ -229,10 +229,11 @@ xpc_hb_checker(void *ignore)
int last_IRQ_count = 0;
int new_IRQ_count;
int force_IRQ = 0;
cpumask_of_cpu_ptr(cpumask, XPC_HB_CHECK_CPU);
/* this thread was marked active by xpc_hb_init() */
set_cpus_allowed(current, cpumask_of_cpu(XPC_HB_CHECK_CPU));
set_cpus_allowed_ptr(current, cpumask);
/* set our heartbeating to other partitions into motion */
xpc_hb_check_timeout = jiffies + (xpc_hb_check_interval * HZ);

2
include/asm-x86/ipi.h
View file

@ -122,7 +122,7 @@ static inline void send_IPI_mask_sequence(cpumask_t mask, int vector)
* - mbligh
*/
local_irq_save(flags);
for_each_cpu_mask(query_cpu, mask) {
for_each_cpu_mask_nr(query_cpu, mask) {
__send_IPI_dest_field(per_cpu(x86_cpu_to_apicid, query_cpu),
vector, APIC_DEST_PHYSICAL);
}

2
include/asm-x86/processor.h
View file

@ -134,7 +134,7 @@ extern __u32 cleared_cpu_caps[NCAPINTS];
#ifdef CONFIG_SMP
DECLARE_PER_CPU(struct cpuinfo_x86, cpu_info);
#define cpu_data(cpu) per_cpu(cpu_info, cpu)
#define current_cpu_data cpu_data(smp_processor_id())
#define current_cpu_data __get_cpu_var(cpu_info)
#else
#define cpu_data(cpu) boot_cpu_data
#define current_cpu_data boot_cpu_data

166
include/linux/cpumask.h
View file

@ -17,6 +17,20 @@
* For details of cpus_onto(), see bitmap_onto in lib/bitmap.c.
* For details of cpus_fold(), see bitmap_fold in lib/bitmap.c.
*
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
* Note: The alternate operations with the suffix "_nr" are used
* to limit the range of the loop to nr_cpu_ids instead of
* NR_CPUS when NR_CPUS > 64 for performance reasons.
* If NR_CPUS is <= 64 then most assembler bitmask
* operators execute faster with a constant range, so
* the operator will continue to use NR_CPUS.
*
* Another consideration is that nr_cpu_ids is initialized
* to NR_CPUS and isn't lowered until the possible cpus are
* discovered (including any disabled cpus). So early uses
* will span the entire range of NR_CPUS.
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
*
* The available cpumask operations are:
*
* void cpu_set(cpu, mask) turn on bit 'cpu' in mask
@ -38,18 +52,60 @@
* int cpus_empty(mask) Is mask empty (no bits sets)?
* int cpus_full(mask) Is mask full (all bits sets)?
* int cpus_weight(mask) Hamming weigh - number of set bits
* int cpus_weight_nr(mask) Same using nr_cpu_ids instead of NR_CPUS
*
* void cpus_shift_right(dst, src, n) Shift right
* void cpus_shift_left(dst, src, n) Shift left
*
* int first_cpu(mask) Number lowest set bit, or NR_CPUS
* int next_cpu(cpu, mask) Next cpu past 'cpu', or NR_CPUS
* int next_cpu_nr(cpu, mask) Next cpu past 'cpu', or nr_cpu_ids
*
* cpumask_t cpumask_of_cpu(cpu) Return cpumask with bit 'cpu' set
*ifdef CONFIG_HAS_CPUMASK_OF_CPU
* cpumask_of_cpu_ptr_declare(v) Declares cpumask_t *v
* cpumask_of_cpu_ptr_next(v, cpu) Sets v = &cpumask_of_cpu_map[cpu]
* cpumask_of_cpu_ptr(v, cpu) Combines above two operations
*else
* cpumask_of_cpu_ptr_declare(v) Declares cpumask_t _v and *v = &_v
* cpumask_of_cpu_ptr_next(v, cpu) Sets _v = cpumask_of_cpu(cpu)
* cpumask_of_cpu_ptr(v, cpu) Combines above two operations
*endif
* CPU_MASK_ALL Initializer - all bits set
* CPU_MASK_NONE Initializer - no bits set
* unsigned long *cpus_addr(mask) Array of unsigned long's in mask
*
* CPUMASK_ALLOC kmalloc's a structure that is a composite of many cpumask_t
* variables, and CPUMASK_PTR provides pointers to each field.
*
* The structure should be defined something like this:
* struct my_cpumasks {
* cpumask_t mask1;
* cpumask_t mask2;
* };
*
* Usage is then:
* CPUMASK_ALLOC(my_cpumasks);
* CPUMASK_PTR(mask1, my_cpumasks);
* CPUMASK_PTR(mask2, my_cpumasks);
*
* --- DO NOT reference cpumask_t pointers until this check ---
* if (my_cpumasks == NULL)
* "kmalloc failed"...
*
* References are now pointers to the cpumask_t variables (*mask1, ...)
*
*if NR_CPUS > BITS_PER_LONG
* CPUMASK_ALLOC(m) Declares and allocates struct m *m =
* kmalloc(sizeof(*m), GFP_KERNEL)
* CPUMASK_FREE(m) Macro for kfree(m)
*else
* CPUMASK_ALLOC(m) Declares struct m _m, *m = &_m
* CPUMASK_FREE(m) Nop
*endif
* CPUMASK_PTR(v, m) Declares cpumask_t *v = &(m->v)
* ------------------------------------------------------------------------
*
* int cpumask_scnprintf(buf, len, mask) Format cpumask for printing
* int cpumask_parse_user(ubuf, ulen, mask) Parse ascii string as cpumask
* int cpulist_scnprintf(buf, len, mask) Format cpumask as list for printing
@ -59,7 +115,8 @@
* void cpus_onto(dst, orig, relmap) *dst = orig relative to relmap
* void cpus_fold(dst, orig, sz) dst bits = orig bits mod sz
*
* for_each_cpu_mask(cpu, mask) for-loop cpu over mask
* for_each_cpu_mask(cpu, mask) for-loop cpu over mask using NR_CPUS
* for_each_cpu_mask_nr(cpu, mask) for-loop cpu over mask using nr_cpu_ids
*
* int num_online_cpus() Number of online CPUs
* int num_possible_cpus() Number of all possible CPUs
@ -216,23 +273,19 @@ static inline void __cpus_shift_left(cpumask_t *dstp,
bitmap_shift_left(dstp->bits, srcp->bits, n, nbits);
}
#ifdef CONFIG_SMP
int __first_cpu(const cpumask_t *srcp);
#define first_cpu(src) __first_cpu(&(src))
int __next_cpu(int n, const cpumask_t *srcp);
#define next_cpu(n, src) __next_cpu((n), &(src))
#else
#define first_cpu(src) ({ (void)(src); 0; })
#define next_cpu(n, src) ({ (void)(src); 1; })
#endif
#ifdef CONFIG_HAVE_CPUMASK_OF_CPU_MAP
extern cpumask_t *cpumask_of_cpu_map;
#define cpumask_of_cpu(cpu) (cpumask_of_cpu_map[cpu])
#define cpumask_of_cpu(cpu) (cpumask_of_cpu_map[cpu])
#define cpumask_of_cpu_ptr(v, cpu) \
const cpumask_t *v = &cpumask_of_cpu(cpu)
#define cpumask_of_cpu_ptr_declare(v) \
const cpumask_t *v
#define cpumask_of_cpu_ptr_next(v, cpu) \
v = &cpumask_of_cpu(cpu)
#else
#define cpumask_of_cpu(cpu) \
(*({ \
({ \
typeof(_unused_cpumask_arg_) m; \
if (sizeof(m) == sizeof(unsigned long)) { \
m.bits[0] = 1UL<<(cpu); \
@ -240,8 +293,16 @@ extern cpumask_t *cpumask_of_cpu_map;
cpus_clear(m); \
cpu_set((cpu), m); \
} \
&m; \
}))
m; \
})
#define cpumask_of_cpu_ptr(v, cpu) \
cpumask_t _##v = cpumask_of_cpu(cpu); \
const cpumask_t *v = &_##v
#define cpumask_of_cpu_ptr_declare(v) \
cpumask_t _##v; \
const cpumask_t *v = &_##v
#define cpumask_of_cpu_ptr_next(v, cpu) \
_##v = cpumask_of_cpu(cpu)
#endif
#define CPU_MASK_LAST_WORD BITMAP_LAST_WORD_MASK(NR_CPUS)
@ -281,6 +342,15 @@ extern cpumask_t cpu_mask_all;
#define cpus_addr(src) ((src).bits)
#if NR_CPUS > BITS_PER_LONG
#define CPUMASK_ALLOC(m) struct m *m = kmalloc(sizeof(*m), GFP_KERNEL)
#define CPUMASK_FREE(m) kfree(m)
#else
#define CPUMASK_ALLOC(m) struct m _m, *m = &_m
#define CPUMASK_FREE(m)
#endif
#define CPUMASK_PTR(v, m) cpumask_t *v = &(m->v)
#define cpumask_scnprintf(buf, len, src) \
__cpumask_scnprintf((buf), (len), &(src), NR_CPUS)
static inline int __cpumask_scnprintf(char *buf, int len,
@ -343,20 +413,49 @@ static inline void __cpus_fold(cpumask_t *dstp, const cpumask_t *origp,
bitmap_fold(dstp->bits, origp->bits, sz, nbits);
}
#if NR_CPUS > 1
#define for_each_cpu_mask(cpu, mask) \
for ((cpu) = first_cpu(mask); \
(cpu) < NR_CPUS; \
(cpu) = next_cpu((cpu), (mask)))
#else /* NR_CPUS == 1 */
#define for_each_cpu_mask(cpu, mask) \
#if NR_CPUS == 1
#define nr_cpu_ids 1
#define first_cpu(src) ({ (void)(src); 0; })
#define next_cpu(n, src) ({ (void)(src); 1; })
#define any_online_cpu(mask) 0
#define for_each_cpu_mask(cpu, mask) \
for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask)
#endif /* NR_CPUS */
#else /* NR_CPUS > 1 */
extern int nr_cpu_ids;
int __first_cpu(const cpumask_t *srcp);
int __next_cpu(int n, const cpumask_t *srcp);
int __any_online_cpu(const cpumask_t *mask);
#define first_cpu(src) __first_cpu(&(src))
#define next_cpu(n, src) __next_cpu((n), &(src))
#define any_online_cpu(mask) __any_online_cpu(&(mask))
#define for_each_cpu_mask(cpu, mask) \
for ((cpu) = -1; \
(cpu) = next_cpu((cpu), (mask)), \
(cpu) < NR_CPUS; )
#endif
#if NR_CPUS <= 64
#define next_cpu_nr(n, src) next_cpu(n, src)
#define cpus_weight_nr(cpumask) cpus_weight(cpumask)
#define for_each_cpu_mask_nr(cpu, mask) for_each_cpu_mask(cpu, mask)
#else /* NR_CPUS > 64 */
int __next_cpu_nr(int n, const cpumask_t *srcp);
#define next_cpu_nr(n, src) __next_cpu_nr((n), &(src))
#define cpus_weight_nr(cpumask) __cpus_weight(&(cpumask), nr_cpu_ids)
#define for_each_cpu_mask_nr(cpu, mask) \
for ((cpu) = -1; \
(cpu) = next_cpu_nr((cpu), (mask)), \
(cpu) < nr_cpu_ids; )
#endif /* NR_CPUS > 64 */
/*
* The following particular system cpumasks and operations manage
* possible, present and online cpus. Each of them is a fixed size
@ -418,9 +517,9 @@ extern cpumask_t cpu_online_map;
extern cpumask_t cpu_present_map;
#if NR_CPUS > 1
#define num_online_cpus() cpus_weight(cpu_online_map)
#define num_possible_cpus() cpus_weight(cpu_possible_map)
#define num_present_cpus() cpus_weight(cpu_present_map)
#define num_online_cpus() cpus_weight_nr(cpu_online_map)
#define num_possible_cpus() cpus_weight_nr(cpu_possible_map)
#define num_present_cpus() cpus_weight_nr(cpu_present_map)
#define cpu_online(cpu) cpu_isset((cpu), cpu_online_map)
#define cpu_possible(cpu) cpu_isset((cpu), cpu_possible_map)
#define cpu_present(cpu) cpu_isset((cpu), cpu_present_map)
@ -435,17 +534,8 @@ extern cpumask_t cpu_present_map;
#define cpu_is_offline(cpu) unlikely(!cpu_online(cpu))
#ifdef CONFIG_SMP
extern int nr_cpu_ids;
#define any_online_cpu(mask) __any_online_cpu(&(mask))
int __any_online_cpu(const cpumask_t *mask);
#else
#define nr_cpu_ids 1
#define any_online_cpu(mask) 0
#endif
#define for_each_possible_cpu(cpu) for_each_cpu_mask((cpu), cpu_possible_map)
#define for_each_online_cpu(cpu) for_each_cpu_mask((cpu), cpu_online_map)
#define for_each_present_cpu(cpu) for_each_cpu_mask((cpu), cpu_present_map)
#define for_each_possible_cpu(cpu) for_each_cpu_mask_nr((cpu), cpu_possible_map)
#define for_each_online_cpu(cpu) for_each_cpu_mask_nr((cpu), cpu_online_map)
#define for_each_present_cpu(cpu) for_each_cpu_mask_nr((cpu), cpu_present_map)
#endif /* __LINUX_CPUMASK_H */

2
kernel/cpu.c
View file

@ -413,7 +413,7 @@ void __ref enable_nonboot_cpus(void)
goto out;
printk("Enabling non-boot CPUs ...\n");
for_each_cpu_mask(cpu, frozen_cpus) {
for_each_cpu_mask_nr(cpu, frozen_cpus) {
error = _cpu_up(cpu, 1);
if (!error) {
printk("CPU%d is up\n", cpu);

2
kernel/rcuclassic.c
View file

@ -106,7 +106,7 @@ static void force_quiescent_state(struct rcu_data *rdp,
*/
cpus_and(cpumask, rcp->cpumask, cpu_online_map);
cpu_clear(rdp->cpu, cpumask);
for_each_cpu_mask(cpu, cpumask)
for_each_cpu_mask_nr(cpu, cpumask)
smp_send_reschedule(cpu);
}
}

10
kernel/rcupreempt.c
View file

@ -756,7 +756,7 @@ rcu_try_flip_idle(void)
/* Now ask each CPU for acknowledgement of the flip. */
for_each_cpu_mask(cpu, rcu_cpu_online_map) {
for_each_cpu_mask_nr(cpu, rcu_cpu_online_map) {
per_cpu(rcu_flip_flag, cpu) = rcu_flipped;
dyntick_save_progress_counter(cpu);
}
@ -774,7 +774,7 @@ rcu_try_flip_waitack(void)
int cpu;
RCU_TRACE_ME(rcupreempt_trace_try_flip_a1);
for_each_cpu_mask(cpu, rcu_cpu_online_map)
for_each_cpu_mask_nr(cpu, rcu_cpu_online_map)
if (rcu_try_flip_waitack_needed(cpu) &&
per_cpu(rcu_flip_flag, cpu) != rcu_flip_seen) {
RCU_TRACE_ME(rcupreempt_trace_try_flip_ae1);
@ -806,7 +806,7 @@ rcu_try_flip_waitzero(void)
/* Check to see if the sum of the "last" counters is zero. */
RCU_TRACE_ME(rcupreempt_trace_try_flip_z1);
for_each_cpu_mask(cpu, rcu_cpu_online_map)
for_each_cpu_mask_nr(cpu, rcu_cpu_online_map)
sum += RCU_DATA_CPU(cpu)->rcu_flipctr[lastidx];
if (sum != 0) {
RCU_TRACE_ME(rcupreempt_trace_try_flip_ze1);
@ -821,7 +821,7 @@ rcu_try_flip_waitzero(void)
smp_mb(); /* ^^^^^^^^^^^^ */
/* Call for a memory barrier from each CPU. */
for_each_cpu_mask(cpu, rcu_cpu_online_map) {
for_each_cpu_mask_nr(cpu, rcu_cpu_online_map) {
per_cpu(rcu_mb_flag, cpu) = rcu_mb_needed;
dyntick_save_progress_counter(cpu);
}
@ -841,7 +841,7 @@ rcu_try_flip_waitmb(void)
int cpu;
RCU_TRACE_ME(rcupreempt_trace_try_flip_m1);
for_each_cpu_mask(cpu, rcu_cpu_online_map)
for_each_cpu_mask_nr(cpu, rcu_cpu_online_map)
if (rcu_try_flip_waitmb_needed(cpu) &&
per_cpu(rcu_mb_flag, cpu) != rcu_mb_done) {
RCU_TRACE_ME(rcupreempt_trace_try_flip_me1);

36
kernel/sched.c
View file

@ -2108,7 +2108,7 @@ find_idlest_group(struct sched_domain *sd, struct task_struct *p, int this_cpu)
/* Tally up the load of all CPUs in the group */
avg_load = 0;
for_each_cpu_mask(i, group->cpumask) {
for_each_cpu_mask_nr(i, group->cpumask) {
/* Bias balancing toward cpus of our domain */
if (local_group)
load = source_load(i, load_idx);
@ -2150,7 +2150,7 @@ find_idlest_cpu(struct sched_group *group, struct task_struct *p, int this_cpu,
/* Traverse only the allowed CPUs */
cpus_and(*tmp, group->cpumask, p->cpus_allowed);
for_each_cpu_mask(i, *tmp) {
for_each_cpu_mask_nr(i, *tmp) {
load = weighted_cpuload(i);
if (load < min_load || (load == min_load && i == this_cpu)) {
@ -3168,7 +3168,7 @@ find_busiest_group(struct sched_domain *sd, int this_cpu,
max_cpu_load = 0;
min_cpu_load = ~0UL;
for_each_cpu_mask(i, group->cpumask) {
for_each_cpu_mask_nr(i, group->cpumask) {
struct rq *rq;
if (!cpu_isset(i, *cpus))
@ -3447,7 +3447,7 @@ find_busiest_queue(struct sched_group *group, enum cpu_idle_type idle,
unsigned long max_load = 0;
int i;
for_each_cpu_mask(i, group->cpumask) {
for_each_cpu_mask_nr(i, group->cpumask) {
unsigned long wl;
if (!cpu_isset(i, *cpus))
@ -3989,7 +3989,7 @@ static void run_rebalance_domains(struct softirq_action *h)
int balance_cpu;
cpu_clear(this_cpu, cpus);
for_each_cpu_mask(balance_cpu, cpus) {
for_each_cpu_mask_nr(balance_cpu, cpus) {
/*
* If this cpu gets work to do, stop the load balancing
* work being done for other cpus. Next load
@ -6802,7 +6802,7 @@ init_sched_build_groups(const cpumask_t *span, const cpumask_t *cpu_map,
cpus_clear(*covered);
for_each_cpu_mask(i, *span) {
for_each_cpu_mask_nr(i, *span) {
struct sched_group *sg;
int group = group_fn(i, cpu_map, &sg, tmpmask);
int j;
@ -6813,7 +6813,7 @@ init_sched_build_groups(const cpumask_t *span, const cpumask_t *cpu_map,
cpus_clear(sg->cpumask);
sg->__cpu_power = 0;
for_each_cpu_mask(j, *span) {
for_each_cpu_mask_nr(j, *span) {
if (group_fn(j, cpu_map, NULL, tmpmask) != group)
continue;
@ -7013,7 +7013,7 @@ static void init_numa_sched_groups_power(struct sched_group *group_head)
if (!sg)
return;
do {
for_each_cpu_mask(j, sg->cpumask) {
for_each_cpu_mask_nr(j, sg->cpumask) {
struct sched_domain *sd;
sd = &per_cpu(phys_domains, j);
@ -7038,7 +7038,7 @@ static void free_sched_groups(const cpumask_t *cpu_map, cpumask_t *nodemask)
{
int cpu, i;
for_each_cpu_mask(cpu, *cpu_map) {
for_each_cpu_mask_nr(cpu, *cpu_map) {
struct sched_group **sched_group_nodes
= sched_group_nodes_bycpu[cpu];
@ -7277,7 +7277,7 @@ static int __build_sched_domains(const cpumask_t *cpu_map,
/*
* Set up domains for cpus specified by the cpu_map.
*/
for_each_cpu_mask(i, *cpu_map) {
for_each_cpu_mask_nr(i, *cpu_map) {
struct sched_domain *sd = NULL, *p;
SCHED_CPUMASK_VAR(nodemask, allmasks);
@ -7344,7 +7344,7 @@ static int __build_sched_domains(const cpumask_t *cpu_map,
#ifdef CONFIG_SCHED_SMT
/* Set up CPU (sibling) groups */
for_each_cpu_mask(i, *cpu_map) {
for_each_cpu_mask_nr(i, *cpu_map) {
SCHED_CPUMASK_VAR(this_sibling_map, allmasks);
SCHED_CPUMASK_VAR(send_covered, allmasks);
@ -7361,7 +7361,7 @@ static int __build_sched_domains(const cpumask_t *cpu_map,
#ifdef CONFIG_SCHED_MC
/* Set up multi-core groups */
for_each_cpu_mask(i, *cpu_map) {
for_each_cpu_mask_nr(i, *cpu_map) {
SCHED_CPUMASK_VAR(this_core_map, allmasks);
SCHED_CPUMASK_VAR(send_covered, allmasks);
@ -7428,7 +7428,7 @@ static int __build_sched_domains(const cpumask_t *cpu_map,
goto error;
}
sched_group_nodes[i] = sg;
for_each_cpu_mask(j, *nodemask) {
for_each_cpu_mask_nr(j, *nodemask) {
struct sched_domain *sd;
sd = &per_cpu(node_domains, j);
@ -7474,21 +7474,21 @@ static int __build_sched_domains(const cpumask_t *cpu_map,
/* Calculate CPU power for physical packages and nodes */
#ifdef CONFIG_SCHED_SMT
for_each_cpu_mask(i, *cpu_map) {
for_each_cpu_mask_nr(i, *cpu_map) {
struct sched_domain *sd = &per_cpu(cpu_domains, i);
init_sched_groups_power(i, sd);
}
#endif
#ifdef CONFIG_SCHED_MC
for_each_cpu_mask(i, *cpu_map) {
for_each_cpu_mask_nr(i, *cpu_map) {
struct sched_domain *sd = &per_cpu(core_domains, i);
init_sched_groups_power(i, sd);
}
#endif
for_each_cpu_mask(i, *cpu_map) {
for_each_cpu_mask_nr(i, *cpu_map) {
struct sched_domain *sd = &per_cpu(phys_domains, i);
init_sched_groups_power(i, sd);
@ -7508,7 +7508,7 @@ static int __build_sched_domains(const cpumask_t *cpu_map,
#endif
/* Attach the domains */
for_each_cpu_mask(i, *cpu_map) {
for_each_cpu_mask_nr(i, *cpu_map) {
struct sched_domain *sd;
#ifdef CONFIG_SCHED_SMT
sd = &per_cpu(cpu_domains, i);
@ -7603,7 +7603,7 @@ static void detach_destroy_domains(const cpumask_t *cpu_map)
unregister_sched_domain_sysctl();
for_each_cpu_mask(i, *cpu_map)
for_each_cpu_mask_nr(i, *cpu_map)
cpu_attach_domain(NULL, &def_root_domain, i);
synchronize_sched();
arch_destroy_sched_domains(cpu_map, &tmpmask);

2
kernel/sched_fair.c
View file

@ -1031,7 +1031,7 @@ static int wake_idle(int cpu, struct task_struct *p)
|| ((sd->flags & SD_WAKE_IDLE_FAR)
&& !task_hot(p, task_rq(p)->clock, sd))) {
cpus_and(tmp, sd->span, p->cpus_allowed);
for_each_cpu_mask(i, tmp) {
for_each_cpu_mask_nr(i, tmp) {
if (idle_cpu(i)) {
if (i != task_cpu(p)) {
schedstat_inc(p,

4
kernel/sched_rt.c
View file

@ -240,7 +240,7 @@ static int do_balance_runtime(struct rt_rq *rt_rq)
spin_lock(&rt_b->rt_runtime_lock);
rt_period = ktime_to_ns(rt_b->rt_period);
for_each_cpu_mask(i, rd->span) {
for_each_cpu_mask_nr(i, rd->span) {
struct rt_rq *iter = sched_rt_period_rt_rq(rt_b, i);
s64 diff;
@ -1107,7 +1107,7 @@ static int pull_rt_task(struct rq *this_rq)
next = pick_next_task_rt(this_rq);
for_each_cpu_mask(cpu, this_rq->rd->rto_mask) {
for_each_cpu_mask_nr(cpu, this_rq->rd->rto_mask) {
if (this_cpu == cpu)
continue;

3
kernel/stop_machine.c
View file

@ -33,8 +33,9 @@ static int stopmachine(void *cpu)
{
int irqs_disabled = 0;
int prepared = 0;
cpumask_of_cpu_ptr(cpumask, (int)(long)cpu);
set_cpus_allowed_ptr(current, &cpumask_of_cpu((int)(long)cpu));
set_cpus_allowed_ptr(current, cpumask);
/* Ack: we are alive */
smp_mb(); /* Theoretically the ack = 0 might not be on this CPU yet. */

4
kernel/taskstats.c
View file

@ -301,7 +301,7 @@ static int add_del_listener(pid_t pid, cpumask_t *maskp, int isadd)
return -EINVAL;
if (isadd == REGISTER) {
for_each_cpu_mask(cpu, mask) {
for_each_cpu_mask_nr(cpu, mask) {
s = kmalloc_node(sizeof(struct listener), GFP_KERNEL,
cpu_to_node(cpu));
if (!s)
@ -320,7 +320,7 @@ static int add_del_listener(pid_t pid, cpumask_t *maskp, int isadd)
/* Deregister or cleanup */
cleanup:
for_each_cpu_mask(cpu, mask) {
for_each_cpu_mask_nr(cpu, mask) {
listeners = &per_cpu(listener_array, cpu);
down_write(&listeners->sem);
list_for_each_entry_safe(s, tmp, &listeners->list, list) {

4
kernel/time/clocksource.c
View file

@ -145,9 +145,9 @@ static void clocksource_watchdog(unsigned long data)
* Cycle through CPUs to check if the CPUs stay
* synchronized to each other.
*/
int next_cpu = next_cpu(raw_smp_processor_id(), cpu_online_map);
int next_cpu = next_cpu_nr(raw_smp_processor_id(), cpu_online_map);
if (next_cpu >= NR_CPUS)
if (next_cpu >= nr_cpu_ids)
next_cpu = first_cpu(cpu_online_map);
watchdog_timer.expires += WATCHDOG_INTERVAL;
add_timer_on(&watchdog_timer, next_cpu);

3
kernel/time/tick-broadcast.c
View file

@ -399,8 +399,7 @@ static void tick_handle_oneshot_broadcast(struct clock_event_device *dev)
mask = CPU_MASK_NONE;
now = ktime_get();
/* Find all expired events */
for (cpu = first_cpu(tick_broadcast_oneshot_mask); cpu != NR_CPUS;
cpu = next_cpu(cpu, tick_broadcast_oneshot_mask)) {
for_each_cpu_mask_nr(cpu, tick_broadcast_oneshot_mask) {
td = &per_cpu(tick_cpu_device, cpu);
if (td->evtdev->next_event.tv64 <= now.tv64)
cpu_set(cpu, mask);

14
kernel/time/tick-common.c
View file

@ -135,7 +135,7 @@ void tick_setup_periodic(struct clock_event_device *dev, int broadcast)
*/
static void tick_setup_device(struct tick_device *td,
struct clock_event_device *newdev, int cpu,
cpumask_t cpumask)
const cpumask_t *cpumask)
{
ktime_t next_event;
void (*handler)(struct clock_event_device *) = NULL;
@ -169,8 +169,8 @@ static void tick_setup_device(struct tick_device *td,
* When the device is not per cpu, pin the interrupt to the
* current cpu:
*/
if (!cpus_equal(newdev->cpumask, cpumask))
irq_set_affinity(newdev->irq, cpumask);
if (!cpus_equal(newdev->cpumask, *cpumask))
irq_set_affinity(newdev->irq, *cpumask);
/*
* When global broadcasting is active, check if the current
@ -196,20 +196,20 @@ static int tick_check_new_device(struct clock_event_device *newdev)
struct tick_device *td;
int cpu, ret = NOTIFY_OK;
unsigned long flags;
cpumask_t cpumask;
cpumask_of_cpu_ptr_declare(cpumask);
spin_lock_irqsave(&tick_device_lock, flags);
cpu = smp_processor_id();
cpumask_of_cpu_ptr_next(cpumask, cpu);
if (!cpu_isset(cpu, newdev->cpumask))
goto out_bc;
td = &per_cpu(tick_cpu_device, cpu);
curdev = td->evtdev;
cpumask = cpumask_of_cpu(cpu);
/* cpu local device ? */
if (!cpus_equal(newdev->cpumask, cpumask)) {
if (!cpus_equal(newdev->cpumask, *cpumask)) {
/*
* If the cpu affinity of the device interrupt can not
@ -222,7 +222,7 @@ static int tick_check_new_device(struct clock_event_device *newdev)
* If we have a cpu local device already, do not replace it
* by a non cpu local device
*/
if (curdev && cpus_equal(curdev->cpumask, cpumask))
if (curdev && cpus_equal(curdev->cpumask, *cpumask))
goto out_bc;
}

4
kernel/trace/trace_sysprof.c
View file

@ -213,7 +213,9 @@ static void start_stack_timers(void)
int cpu;
for_each_online_cpu(cpu) {
set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
cpumask_of_cpu_ptr(new_mask, cpu);
set_cpus_allowed_ptr(current, new_mask);
start_stack_timer(cpu);
}
set_cpus_allowed_ptr(current, &saved_mask);

6
kernel/workqueue.c
View file

@ -397,7 +397,7 @@ void flush_workqueue(struct workqueue_struct *wq)
might_sleep();
lock_acquire(&wq->lockdep_map, 0, 0, 0, 2, _THIS_IP_);
lock_release(&wq->lockdep_map, 1, _THIS_IP_);
for_each_cpu_mask(cpu, *cpu_map)
for_each_cpu_mask_nr(cpu, *cpu_map)
flush_cpu_workqueue(per_cpu_ptr(wq->cpu_wq, cpu));
}
EXPORT_SYMBOL_GPL(flush_workqueue);
@ -477,7 +477,7 @@ static void wait_on_work(struct work_struct *work)
wq = cwq->wq;
cpu_map = wq_cpu_map(wq);
for_each_cpu_mask(cpu, *cpu_map)
for_each_cpu_mask_nr(cpu, *cpu_map)
wait_on_cpu_work(per_cpu_ptr(wq->cpu_wq, cpu), work);
}
@ -813,7 +813,7 @@ void destroy_workqueue(struct workqueue_struct *wq)
list_del(&wq->list);
spin_unlock(&workqueue_lock);
for_each_cpu_mask(cpu, *cpu_map)
for_each_cpu_mask_nr(cpu, *cpu_map)
cleanup_workqueue_thread(per_cpu_ptr(wq->cpu_wq, cpu));
put_online_cpus();

9
lib/cpumask.c
View file

@ -15,6 +15,15 @@ int __next_cpu(int n, const cpumask_t *srcp)
}
EXPORT_SYMBOL(__next_cpu);
#if NR_CPUS > 64
int __next_cpu_nr(int n, const cpumask_t *srcp)
{
return min_t(int, nr_cpu_ids,
find_next_bit(srcp->bits, nr_cpu_ids, n+1));
}
EXPORT_SYMBOL(__next_cpu_nr);
#endif
int __any_online_cpu(const cpumask_t *mask)
{
int cpu;

6
lib/smp_processor_id.c
View file

@ -11,7 +11,7 @@ notrace unsigned int debug_smp_processor_id(void)
{
unsigned long preempt_count = preempt_count();
int this_cpu = raw_smp_processor_id();
cpumask_t this_mask;
cpumask_of_cpu_ptr_declare(this_mask);
if (likely(preempt_count))
goto out;
@ -23,9 +23,9 @@ notrace unsigned int debug_smp_processor_id(void)
* Kernel threads bound to a single CPU can safely use
* smp_processor_id():
*/
this_mask = cpumask_of_cpu(this_cpu);
cpumask_of_cpu_ptr_next(this_mask, this_cpu);
if (cpus_equal(current->cpus_allowed, this_mask))
if (cpus_equal(current->cpus_allowed, *this_mask))
goto out;
/*

4
mm/allocpercpu.c
View file

@ -35,7 +35,7 @@ EXPORT_SYMBOL_GPL(percpu_depopulate);
void __percpu_depopulate_mask(void *__pdata, cpumask_t *mask)
{
int cpu;
for_each_cpu_mask(cpu, *mask)
for_each_cpu_mask_nr(cpu, *mask)
percpu_depopulate(__pdata, cpu);
}
EXPORT_SYMBOL_GPL(__percpu_depopulate_mask);
@ -86,7 +86,7 @@ int __percpu_populate_mask(void *__pdata, size_t size, gfp_t gfp,
int cpu;
cpus_clear(populated);
for_each_cpu_mask(cpu, *mask)
for_each_cpu_mask_nr(cpu, *mask)
if (unlikely(!percpu_populate(__pdata, size, gfp, cpu))) {
__percpu_depopulate_mask(__pdata, &populated);
return -ENOMEM;

2
mm/vmstat.c
View file

@ -26,7 +26,7 @@ static void sum_vm_events(unsigned long *ret, cpumask_t *cpumask)
memset(ret, 0, NR_VM_EVENT_ITEMS * sizeof(unsigned long));
for_each_cpu_mask(cpu, *cpumask) {
for_each_cpu_mask_nr(cpu, *cpumask) {
struct vm_event_state *this = &per_cpu(vm_event_states, cpu);
for (i = 0; i < NR_VM_EVENT_ITEMS; i++)

4
net/core/dev.c
View file

@ -2398,7 +2398,7 @@ static void net_rx_action(struct softirq_action *h)
*/
if (!cpus_empty(net_dma.channel_mask)) {
int chan_idx;
for_each_cpu_mask(chan_idx, net_dma.channel_mask) {
for_each_cpu_mask_nr(chan_idx, net_dma.channel_mask) {
struct dma_chan *chan = net_dma.channels[chan_idx];
if (chan)
dma_async_memcpy_issue_pending(chan);
@ -4533,7 +4533,7 @@ static void net_dma_rebalance(struct net_dma *net_dma)
i = 0;
cpu = first_cpu(cpu_online_map);
for_each_cpu_mask(chan_idx, net_dma->channel_mask) {
for_each_cpu_mask_nr(chan_idx, net_dma->channel_mask) {
chan = net_dma->channels[chan_idx];
n = ((num_online_cpus() / cpus_weight(net_dma->channel_mask))

2
net/iucv/iucv.c
View file

@ -497,7 +497,7 @@ static void iucv_setmask_up(void)
/* Disable all cpu but the first in cpu_irq_cpumask. */
cpumask = iucv_irq_cpumask;
cpu_clear(first_cpu(iucv_irq_cpumask), cpumask);
for_each_cpu_mask(cpu, cpumask)
for_each_cpu_mask_nr(cpu, cpumask)
smp_call_function_single(cpu, iucv_block_cpu, NULL, 1);
}

3
net/sunrpc/svc.c
View file

@ -310,7 +310,8 @@ svc_pool_map_set_cpumask(struct task_struct *task, unsigned int pidx)
switch (m->mode) {
case SVC_POOL_PERCPU:
{
set_cpus_allowed_ptr(task, &cpumask_of_cpu(node));
cpumask_of_cpu_ptr(cpumask, node);
set_cpus_allowed_ptr(task, cpumask);
break;
}
case SVC_POOL_PERNODE: