Ingo Molnar wrote:
quoted text
> 
> text_poke() itself only applies/unapplies the LOCK prefix - a single 
> byte. We shouldnt be doing that at all: the cost of LOCK is 
> insignificant (a few cycles) and most systems are SMP anyway.
> 

Alas, on older CPUs the cost of LOCK can be massive.  The question is 
how much we really care - the embedded people (who would definitely be 
affected) will simply build UP kernels, and this only affects booting 
SMP kernels on UP.

	-hpa
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