Re: [PATCH 1/4] create mm/Kconfig for arch-independent memoryoptions

[Dave Hansen]

On Mon, 2005-04-04 at 16:22 -0700, Mike Kravetz wrote:
> Do you need to set ARCH_DISCONTIGMEM_DEFAULT instead of just
> CONFIG_ARCH_DISCONTIGMEM_ENABLE to have DISCONTIGMEM be the
> default? or am I missing something?  I don't see
> ARCH_DISCONTIGMEM_DEFAULT turned on by default in any of these
> patches.

It's a wee bit confusing, but I think it all works out.

Doing ARCH_DISCONTIGMEM_ENABLE=y turns off the FLATMEM option in the
mm/Kconfig prompt because FLATMEM depends on !ARCH_DISCONTIGMEM_ENABLE.
So, if you enable it, it will end up being the default because there's
no other choice.

For configs that *need* both options, you can re-enable FLATMEM with
ARCH_FLATMEM_ENABLE

-- Dave

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