On Thursday 19 October 2006 16:48, Nick Piggin wrote:
> Andi Kleen wrote:
> >>An SMP kernel can boot on UP hardware, in which case I think
> >>num_possible_cpus() will be 1, won't it?
> >
> >
> > 0 was a typo, i meant 1 for UP of course. 0 would be nonsensical.
>
> Sure, I realised that. For a UP kernel, the test will compile away.
>
> But Daniel seems to say there is dead code that could be compiled
> out for SMP kernels. I just don't think that is possible because the
> SMP kernel can boot a UP system where num_possible_cpus() is 1.
I thought he meant !CONFIG_SMP kernels.
-Andi
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