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cpumask: alloc zeroed cpumask for static cpumask_var_ts

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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
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2
kernel/sched_cpupri.c
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@@ -165,7 +165,7 @@ int __init_refok cpupri_init(struct cpupri *cp, bool bootmem)
vec->count = 0;
if (bootmem)
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;
}

2
kernel/sched_rt.c
View File

@@ -1591,7 +1591,7 @@ static inline void init_sched_rt_class(void)
unsigned int 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));
}
#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) {
case CPU_UP_PREPARE:
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)))
return NOTIFY_BAD;
break;