On Thu, Jun 09, 2016 at 01:21:18PM +0200, Paolo Bonzini wrote:
> This is basically implementing a seqcount. It needs two barriers and,
Why does it need the two barriers? More details please.
> technically, they should be virt_rmb() -- it really doesn't matter of
> course because reads are never reordered on x86.
You mean
version = src->version;
flags = src->flags;
are not reordered?
I don't think so.
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