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cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.: sparc

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Impact: cleanup, futureproof

In fact, all cpumask ops will only be valid (in general) for bit
numbers < nr_cpu_ids.  So use that instead of NR_CPUS in various
places.

This is always safe: no cpu number can be >= nr_cpu_ids, and
nr_cpu_ids is initialized to NR_CPUS at boot.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Rusty Russell
2009-03-16 14:40:24 +10:30
parent e305cb8f09
commit ec7c14bde8
4 changed files with 13 additions and 17 deletions
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8
arch/sparc/kernel/sun4m_smp.c
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@@ -186,11 +186,9 @@ void __init smp4m_smp_done(void)
/* setup cpu list for irq rotation */
first = 0;
prev = &first;
for (i = 0; i < NR_CPUS; i++) {
if (cpu_online(i)) {
*prev = i;
prev = &cpu_data(i).next;
}
for_each_online_cpu(i) {
*prev = i;
prev = &cpu_data(i).next;
}
*prev = first;
local_flush_cache_all();