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[PATCH] cpumask: uninline any_online_cpu()

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text    data     bss     dec     hex filename
before: 3605597 1363528  363328 5332453  515de5 vmlinux
after:  3605295 1363612  363200 5332107  515c8b vmlinux

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Also, optimise any_online_cpu() out of existence on CONFIG_SMP=n.

This function seems inefficient.  Can't we simply AND the two masks, then use
find_first_bit()?

Cc: Paul Jackson <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Andrew Morton 2006-03-25 03:08:10 -08:00 • committed by Linus Torvalds
commit 96a9b4d31e
2 changed files with 15 additions and 10 deletions
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12
lib/cpumask.c
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@ -31,3 +31,15 @@ int highest_possible_processor_id(void)
return highest;
}
EXPORT_SYMBOL(highest_possible_processor_id);
int __any_online_cpu(const cpumask_t *mask)
{
int cpu;
for_each_cpu_mask(cpu, *mask) {
if (cpu_online(cpu))
break;
}
return cpu;
}
EXPORT_SYMBOL(__any_online_cpu);