On Thursday, August 18, 2011 1:49:18 pm Christoph Hoffmann wrote:
> John,
>
> Unfortunately not, as we is still need 4 additional instructions or some
sort of memory
> barrier [ like mb() in Tru64 :) ] .
Well, x86 CPUs generally don't need memory barriers assuming the compiler
hasn't done something invalid, especially for opertions that are only on a
single CPU. However, if the compiler was broken presumably zfsboot would be
broken everywhere.
--
John Baldwin
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