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cpumask: alloc zeroed cpumask for static cpumask_var_ts 

These are defined as static cpumask_var_t so if MAXSMP is not used,
they are cleared already.  Avoid surprises when MAXSMP is enabled.

Signed-off-by: Yinghai Lu <yinghai.lu@kernel.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Yinghai Lu 2009-06-06 14:51:36 -07:00 committed by Rusty Russell
parent 0281b5dc03
commit eaa958402e
11 changed files with 11 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
View File

@ -550,7 +550,7 @@ static int __init acpi_cpufreq_early_init(void)
return -ENOMEM; return -ENOMEM;
} }
for_each_possible_cpu(i) { for_each_possible_cpu(i) {
if (!alloc_cpumask_var_node( if (!zalloc_cpumask_var_node(
&per_cpu_ptr(acpi_perf_data, i)->shared_cpu_map, &per_cpu_ptr(acpi_perf_data, i)->shared_cpu_map,
GFP_KERNEL, cpu_to_node(i))) { GFP_KERNEL, cpu_to_node(i))) {

2
arch/x86/kernel/cpu/cpufreq/powernow-k7.c
View File

@ -322,7 +322,7 @@ static int powernow_acpi_init(void)
goto err0; goto err0;
} }
if (!alloc_cpumask_var(&acpi_processor_perf->shared_cpu_map, if (!zalloc_cpumask_var(&acpi_processor_perf->shared_cpu_map,
GFP_KERNEL)) { GFP_KERNEL)) {
retval = -ENOMEM; retval = -ENOMEM;
goto err05; goto err05;

2
arch/x86/kernel/cpu/cpufreq/powernow-k8.c
View File

@ -887,7 +887,7 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
/* notify BIOS that we exist */ /* notify BIOS that we exist */
acpi_processor_notify_smm(THIS_MODULE); acpi_processor_notify_smm(THIS_MODULE);
if (!alloc_cpumask_var(&data->acpi_data.shared_cpu_map, GFP_KERNEL)) { if (!zalloc_cpumask_var(&data->acpi_data.shared_cpu_map, GFP_KERNEL)) {
printk(KERN_ERR PFX printk(KERN_ERR PFX
"unable to alloc powernow_k8_data cpumask\n"); "unable to alloc powernow_k8_data cpumask\n");
ret_val = -ENOMEM; ret_val = -ENOMEM;

2
arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
View File

@ -471,7 +471,7 @@ static int centrino_target (struct cpufreq_policy *policy,
if (unlikely(!alloc_cpumask_var(&saved_mask, GFP_KERNEL))) if (unlikely(!alloc_cpumask_var(&saved_mask, GFP_KERNEL)))
return -ENOMEM; return -ENOMEM;
if (unlikely(!alloc_cpumask_var(&covered_cpus, GFP_KERNEL))) { if (unlikely(!zalloc_cpumask_var(&covered_cpus, GFP_KERNEL))) {
free_cpumask_var(saved_mask); free_cpumask_var(saved_mask);
return -ENOMEM; return -ENOMEM;
} }

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

@ -1163,7 +1163,7 @@ static __init int mce_init_device(void)
if (!mce_available(&boot_cpu_data)) if (!mce_available(&boot_cpu_data))
return -EIO; return -EIO;
alloc_cpumask_var(&mce_device_initialized, GFP_KERNEL); zalloc_cpumask_var(&mce_device_initialized, GFP_KERNEL);
err = mce_init_banks(); err = mce_init_banks();
if (err) if (err)

2
arch/x86/kernel/tlb_uv.c
View File

@ -832,7 +832,7 @@ static int __init uv_bau_init(void)
return 0; return 0;
for_each_possible_cpu(cur_cpu) for_each_possible_cpu(cur_cpu)
alloc_cpumask_var_node(&per_cpu(uv_flush_tlb_mask, cur_cpu), zalloc_cpumask_var_node(&per_cpu(uv_flush_tlb_mask, cur_cpu),
GFP_KERNEL, cpu_to_node(cur_cpu)); GFP_KERNEL, cpu_to_node(cur_cpu));
uv_bau_retry_limit = 1; uv_bau_retry_limit = 1;

2
drivers/acpi/processor_core.c
View File

@ -844,7 +844,7 @@ static int acpi_processor_add(struct acpi_device *device)
if (!pr) if (!pr)
return -ENOMEM; return -ENOMEM;
if (!alloc_cpumask_var(&pr->throttling.shared_cpu_map, GFP_KERNEL)) { if (!zalloc_cpumask_var(&pr->throttling.shared_cpu_map, GFP_KERNEL)) {
kfree(pr); kfree(pr);
return -ENOMEM; return -ENOMEM;
} }

2
drivers/cpufreq/cpufreq.c
View File

@ -808,7 +808,7 @@ static int cpufreq_add_dev(struct sys_device *sys_dev)
ret = -ENOMEM; ret = -ENOMEM;
goto nomem_out; goto nomem_out;
} }
if (!alloc_cpumask_var(&policy->related_cpus, GFP_KERNEL)) { if (!zalloc_cpumask_var(&policy->related_cpus, GFP_KERNEL)) {
free_cpumask_var(policy->cpus); free_cpumask_var(policy->cpus);
kfree(policy); kfree(policy);
ret = -ENOMEM; ret = -ENOMEM;

2
kernel/sched_cpupri.c
View File

@ -165,7 +165,7 @@ int __init_refok cpupri_init(struct cpupri *cp, bool bootmem)
vec->count = 0; vec->count = 0;
if (bootmem) if (bootmem)
alloc_bootmem_cpumask_var(&vec->mask); alloc_bootmem_cpumask_var(&vec->mask);
else if (!alloc_cpumask_var(&vec->mask, GFP_KERNEL)) else if (!zalloc_cpumask_var(&vec->mask, GFP_KERNEL))
goto cleanup; goto cleanup;
} }

2
kernel/sched_rt.c
View File

@ -1591,7 +1591,7 @@ static inline void init_sched_rt_class(void)
unsigned int i; unsigned int i;
for_each_possible_cpu(i) for_each_possible_cpu(i)
alloc_cpumask_var_node(&per_cpu(local_cpu_mask, i), zalloc_cpumask_var_node(&per_cpu(local_cpu_mask, i),
GFP_KERNEL, cpu_to_node(i)); GFP_KERNEL, cpu_to_node(i));
} }
#endif /* CONFIG_SMP */ #endif /* CONFIG_SMP */

2
kernel/smp.c
View File

@ -52,7 +52,7 @@ hotplug_cfd(struct notifier_block *nfb, unsigned long action, void *hcpu)
switch (action) { switch (action) {
case CPU_UP_PREPARE: case CPU_UP_PREPARE:
case CPU_UP_PREPARE_FROZEN: case CPU_UP_PREPARE_FROZEN:
if (!alloc_cpumask_var_node(&cfd->cpumask, GFP_KERNEL, if (!zalloc_cpumask_var_node(&cfd->cpumask, GFP_KERNEL,
cpu_to_node(cpu))) cpu_to_node(cpu)))
return NOTIFY_BAD; return NOTIFY_BAD;
break; break;