Re: [PATCH 5/5] remove HAVE_ARCH_CMPXCHG

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Roman Zippel wrote:
Hi,

On Thu, 15 Sep 2005, Nick Piggin wrote:


Is there any point in keeping this around?


Yes, for drivers which want to use it to synchronize with userspace.
Alternatively it could be changed into a Kconfig definition.


I think it already is. At least, I did grep for it and didn't
see anything.

I think userspace synchronization may be quite a valid use of
atomic cmpxchg, but Kconfig is a far better place to do it than
testing HAVE_ARCH_CMPXCHG.

--
SUSE Labs, Novell Inc.

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