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cpumask: put cpumask_of_cpu_map in the initdata section

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* Create the cpumask_of_cpu_map statically in the init data section
    using NR_CPUS but replace it during boot up with one sized by
    nr_cpu_ids (num possible cpus).

Signed-off-by: Mike Travis <travis@sgi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jack Steiner <steiner@sgi.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Mike Travis
2008-07-24 18:21:30 -07:00
committed by Ingo Molnar
parent b8d317d10c
commit 6524d938b3
2 changed files with 11 additions and 7 deletions
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10
arch/x86/kernel/setup_percpu.c
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@ -81,10 +81,12 @@ static void __init setup_per_cpu_maps(void)
}
#ifdef CONFIG_HAVE_CPUMASK_OF_CPU_MAP
cpumask_t *cpumask_of_cpu_map __read_mostly;
EXPORT_SYMBOL(cpumask_of_cpu_map);
/* requires nr_cpu_ids to be initialized */
/*
* Replace static cpumask_of_cpu_map in the initdata section,
* with one that's allocated sized by the possible number of cpus.
*
* (requires nr_cpu_ids to be initialized)
*/
static void __init setup_cpumask_of_cpu(void)
{
int i;