[PATCH] Document Linux's memory barriers [try #2]

Andi Kleen ak at suse.de
Wed Mar 8 22:38:38 EST 2006

On Wednesday 08 March 2006 19:59, David Howells wrote:
> Alan Cox <alan at redhat.com> wrote:
> > then on some NUMA infrastructures the order may not be as you expect.
> Oh, yuck!
> Okay... does NUMA guarantee the same for ordinary memory accesses inside the
> critical section?

If you use barriers the ordering should be the same on cc/NUMA vs SMP.
Otherwise it wouldn't be "cc" 

But it might be quite unfair.


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