On Sun, Oct 16, 2005 at 11:36:00PM +0400, Ivan Kokshaysky wrote:
> Note that superfluous mb's around atomic stuff still can hurt -
> Alpha mb instruction also flushes IO write buffers, so it can
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
That's what needed to implement the wmb on alpha, this is why mb is
needed there and we need to add it at the top as well to comply with
docs (and especially for atomic_dec_and_test kind of usage like Dave
said).
Ivan I assume you'll take care of fixing it, thanks!
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