On Wed, 19 Jun 2002 05:36:08 +0000 (UTC)
torvalds@transmeta.com (Linus Torvalds) wrote:
> Actually, it _should_ be declared, it's just that on UP it should be
> defined to the constant 1.
>
> Somehow that #define got dropped by the hotplug-CPU stuff.
Actually, was deliberate. Not exposing the mask when almost everyone
just wants to know "are any of these cpus online" was a preemptive strike
against NR_CPUS > BITS_PER_LONG (I wouldn't have bothered but I was so
close anyway).
My mistake was not noticing that x86 SMP was still exposing it and that
scheduler changes since my original patch were using it. Fixed with
cpu_online_mask(res, mask) in prior patch.
Apologies, and hope that clarifies,
Rusty.
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