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>
diff --git a/kernel/sched_cpupri.c b/kernel/sched_cpupri.c
index cdd3c89..344712a 100644
--- a/kernel/sched_cpupri.c
+++ b/kernel/sched_cpupri.c
@@ -165,7 +165,7 @@
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;
}
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index f2c66f8..9bf0d2a 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -1591,7 +1591,7 @@
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 */
diff --git a/kernel/smp.c b/kernel/smp.c
index 858baac..ad63d85 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -52,7 +52,7 @@
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;