[PATCH] Use uname not sysctl to get the kernel revision

[Arjan van de Ven]

> It is a short busy wait before falling asleep.  I assume you mean
> busy wait is a loss even on SMP?

eh yeah I forgot to think for a second. But yes even for SMP busy wait
is pretty bad power wise nowadays.. at least if you wait more than a few
hundred cycles. (and if you wait less... then it's almost unlikely that
it'll be useful as well)