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FromDavid Howells <>
SubjectRe: Memory barriers and spin_unlock safety
DateTue, 07 Mar 2006 17:36:59 +0000
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()

David
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