On Wednesday 08 March 2006 23:06, Alan Cox wrote:
> On Mer, 2006-03-08 at 13:31 -0800, Bryan O'Sullivan wrote:
> > flush_wc() says nothing about whether {A,B,C} may be reordered with
> > respect to each other, or whether {D,E} may, but it guarantees that
> > {A,B,C} will make it off-CPU before {D,E}. An arch that implements
> > flush_wc() should make the stores occur immediately, if possible.
>
> How is this different to mmiowb() ?
I think he intends it to be a flush instead of an ordering.
(something like CLFLUSH for WC areas)
-Andi
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