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SubjectRe: Memory barriers and spin_unlock safety
Date
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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