Nick Piggin <[email protected]> wrote:
> Having the smp_rmb() here implies there is some sort of memory barrier
> based synchronisation protocol at a higher level (than this function),
> because you don't actually do anything before them smp_rmb() here.
>
> So can you comment what that is?
Hmmm... That probably shouldn't be there. I don't think Andrew Morton and I
actually came to an agreement as to whether it's necessary. I don't think it
is, he thought that it was, though he may have changed his mind.
David
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