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Commit eaa958402ea40851097d051f52ba1bb7a885efe9

Authored by Yinghai Lu
Committed by Rusty Russell
1 parent 0281b5dc03

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>

Showing 11 changed files with 11 additions and 11 deletions Side-by-side Diff

arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
Diff comments   View file @ eaa9584
... ... @@ -550,7 +550,7 @@
550 550 return -ENOMEM;
551 551 }
552 552 for_each_possible_cpu(i) {
553   - if (!alloc_cpumask_var_node(
  553 + if (!zalloc_cpumask_var_node(
554 554 &per_cpu_ptr(acpi_perf_data, i)->shared_cpu_map,
555 555 GFP_KERNEL, cpu_to_node(i))) {
556 556  
arch/x86/kernel/cpu/cpufreq/powernow-k7.c
Diff comments   View file @ eaa9584
... ... @@ -322,7 +322,7 @@
322 322 goto err0;
323 323 }
324 324  
325   - if (!alloc_cpumask_var(&acpi_processor_perf->shared_cpu_map,
  325 + if (!zalloc_cpumask_var(&acpi_processor_perf->shared_cpu_map,
326 326 GFP_KERNEL)) {
327 327 retval = -ENOMEM;
328 328 goto err05;
arch/x86/kernel/cpu/cpufreq/powernow-k8.c
Diff comments   View file @ eaa9584
... ... @@ -887,7 +887,7 @@
887 887 /* notify BIOS that we exist */
888 888 acpi_processor_notify_smm(THIS_MODULE);
889 889  
890   - if (!alloc_cpumask_var(&data->acpi_data.shared_cpu_map, GFP_KERNEL)) {
  890 + if (!zalloc_cpumask_var(&data->acpi_data.shared_cpu_map, GFP_KERNEL)) {
891 891 printk(KERN_ERR PFX
892 892 "unable to alloc powernow_k8_data cpumask\n");
893 893 ret_val = -ENOMEM;
arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c
Diff comments   View file @ eaa9584
... ... @@ -471,7 +471,7 @@
471 471  
472 472 if (unlikely(!alloc_cpumask_var(&saved_mask, GFP_KERNEL)))
473 473 return -ENOMEM;
474   - if (unlikely(!alloc_cpumask_var(&covered_cpus, GFP_KERNEL))) {
  474 + if (unlikely(!zalloc_cpumask_var(&covered_cpus, GFP_KERNEL))) {
475 475 free_cpumask_var(saved_mask);
476 476 return -ENOMEM;
477 477 }
arch/x86/kernel/cpu/mcheck/mce_64.c
Diff comments   View file @ eaa9584
... ... @@ -1163,7 +1163,7 @@
1163 1163 if (!mce_available(&boot_cpu_data))
1164 1164 return -EIO;
1165 1165  
1166   - alloc_cpumask_var(&mce_device_initialized, GFP_KERNEL);
  1166 + zalloc_cpumask_var(&mce_device_initialized, GFP_KERNEL);
1167 1167  
1168 1168 err = mce_init_banks();
1169 1169 if (err)
arch/x86/kernel/tlb_uv.c
Diff comments   View file @ eaa9584
... ... @@ -832,7 +832,7 @@
832 832 return 0;
833 833  
834 834 for_each_possible_cpu(cur_cpu)
835   - alloc_cpumask_var_node(&per_cpu(uv_flush_tlb_mask, cur_cpu),
  835 + zalloc_cpumask_var_node(&per_cpu(uv_flush_tlb_mask, cur_cpu),
836 836 GFP_KERNEL, cpu_to_node(cur_cpu));
837 837  
838 838 uv_bau_retry_limit = 1;
drivers/acpi/processor_core.c
Diff comments   View file @ eaa9584
... ... @@ -844,7 +844,7 @@
844 844 if (!pr)
845 845 return -ENOMEM;
846 846  
847   - if (!alloc_cpumask_var(&pr->throttling.shared_cpu_map, GFP_KERNEL)) {
  847 + if (!zalloc_cpumask_var(&pr->throttling.shared_cpu_map, GFP_KERNEL)) {
848 848 kfree(pr);
849 849 return -ENOMEM;
850 850 }
drivers/cpufreq/cpufreq.c
Diff comments   View file @ eaa9584
... ... @@ -808,7 +808,7 @@
808 808 ret = -ENOMEM;
809 809 goto nomem_out;
810 810 }
811   - if (!alloc_cpumask_var(&policy->related_cpus, GFP_KERNEL)) {
  811 + if (!zalloc_cpumask_var(&policy->related_cpus, GFP_KERNEL)) {
812 812 free_cpumask_var(policy->cpus);
813 813 kfree(policy);
814 814 ret = -ENOMEM;
kernel/sched_cpupri.c
Diff comments   View file @ eaa9584
... ... @@ -165,7 +165,7 @@
165 165 vec->count = 0;
166 166 if (bootmem)
167 167 alloc_bootmem_cpumask_var(&vec->mask);
168   - else if (!alloc_cpumask_var(&vec->mask, GFP_KERNEL))
  168 + else if (!zalloc_cpumask_var(&vec->mask, GFP_KERNEL))
169 169 goto cleanup;
170 170 }
171 171  
... ... @@ -1591,7 +1591,7 @@
1591 1591 unsigned int i;
1592 1592  
1593 1593 for_each_possible_cpu(i)
1594   - alloc_cpumask_var_node(&per_cpu(local_cpu_mask, i),
  1594 + zalloc_cpumask_var_node(&per_cpu(local_cpu_mask, i),
1595 1595 GFP_KERNEL, cpu_to_node(i));
1596 1596 }
1597 1597 #endif /* CONFIG_SMP */
... ... @@ -52,7 +52,7 @@
52 52 switch (action) {
53 53 case CPU_UP_PREPARE:
54 54 case CPU_UP_PREPARE_FROZEN:
55   - if (!alloc_cpumask_var_node(&cfd->cpumask, GFP_KERNEL,
  55 + if (!zalloc_cpumask_var_node(&cfd->cpumask, GFP_KERNEL,
56 56 cpu_to_node(cpu)))
57 57 return NOTIFY_BAD;
58 58 break;