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SubjectRe: [patch 3/4] cpu alloc: The allocator
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Hi Andrew,

On Fri, 2008-10-03 at 00:33 -0700, Andrew Morton wrote:
> > +static void set_map(int start, int length)
> > +{
> > + while (length-- > 0)
> > + __set_bit(start++, cpu_alloc_map);
> > +}
>
> Can we use bitmap_fill() here?

But bitmap_fill() assumes that the starting offset is aligned to
unsigned long (which is not the case here), doesn't it?

On Fri, 2008-10-03 at 00:33 -0700, Andrew Morton wrote:
> But I'd have though that it would be possible to only allocate the
> storage for online CPUs. That would be a pretty significant win for
> some system configurations?

Maybe, but then you'd have to deal with CPU hotplug... iik.

Pekka

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