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SubjectRe: [PATCH -tip] Switch arm defconfig files from CONFIG_CLASSIC_RCU to CONFIG_TREE_RCU.
On Thu, Dec 25, 2008 at 09:36:11AM +0100, Ingo Molnar wrote:
>
> below is the fix for another small buglet that hits architectures that do
> not include kernel/Kconfig.preempt.

What is needed to let all architectures include Kconfig.preempt?
We should not advertise preemption if not supported,
but we could do this by a simple Kconfig symbol:

config HAVE_PREEMPT
bool

And let all architectures that supports preemption do:

config "ARCH"
select HAVE_PREEMPT

But maybe there is a simpler solution

Sam


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