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Am Freitag, 18. Juni 2004 23:41 schrieb Alan Stern:
> > barriers. Actually, it's worse, you need a full mb() to order them,
> > which is why lately, we made ppc64 writeX() do full sync's ... that sucks
> > but it's near to impossible to get an abstract IO API that would cover
> > our needs here and still make other archs happy it seems...
>
> I recently changed a few mb() calls to wmb(), because they only protected
> data the CPU was writing to be read by the device. �Do you think changing
> all the wmb()'s back to mb()'s would make a difference?
Are these issues documented somewhere?
Regards
Oliver
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