Re: [PATCH] Allow flatmem to be disabled when only sparsemem is implemented

[Andy Whitcroft]

Anton Blanchard wrote:

> On architectures that implement sparsemem but not discontigmem we want
> to be able to hide the flatmem option in some cases. On ppc64 for
> example, when we select NUMA we must not select flatmem.
> 
> Signed-off-by: Anton Blanchard <anton@xxxxxxxxx>

First reaction is that this is very reasonable.  I can see why you need
to do this as you don't have DISCONTIGMEM.  I will just go check the
major architectures and make sure they arn't relying on being able to
enable SPARSEMEM and getting FLATMEM too behaviour.  I don't think they
can be as they all have DISCONTIGMEM and so should be insulated.

-apw
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