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sched: convert local_cpu_mask to cpumask_var_t.

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Impact: (future) size reduction for large NR_CPUS.

Dynamically allocating cpumasks (when CONFIG_CPUMASK_OFFSTACK) saves
space for small nr_cpu_ids but big CONFIG_NR_CPUS.  cpumask_var_t
is just a struct cpumask for !CONFIG_CPUMASK_OFFSTACK.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Rusty Russell
2008-11-25 02:35:13 +10:30
committed by Ingo Molnar
parent 24600ce89a
commit 0e3900e6d3
2 changed files with 12 additions and 2 deletions
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kernel/sched.c
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@@ -8018,6 +8018,7 @@ void __init sched_init_smp(void)
free_cpumask_var(non_isolated_cpus);
alloc_cpumask_var(&fallback_doms, GFP_KERNEL);
init_sched_rt_class();
}
#else
void __init sched_init_smp(void)