Messages in this thread | | | From | David Howells <> | Subject | Re: Memory barriers and spin_unlock safety | Date | Tue, 07 Mar 2006 17:36:59 +0000 |
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David Howells <dhowells@redhat.com> wrote:
> I suspect, then, that x86_64 should not have an SFENCE for smp_wmb(), and > that only io_wmb() should have that.
Hmmm... We don't actually have io_wmb()... Should the following be added to all archs?
io_mb() io_rmb() io_wmb()
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