> > > This change causes the memory access of the "easy" spin-loop portion 
quoted text
> > > to be more agressive: after the REP; NOP we'd not do the 'easy-loop' 
> > > with a simple CMPB, but we'd re-attempt the atomic op.
> > 
> > It looks as if this is going to overflow of the lock counter, no?
> 
> hm, what do you mean? There's no lock counter.

I mean, the repeated calls to decb will pretty soon make lock->slock
wrap around.

Miklos
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