Re: [PATCH 5/5] remove HAVE_ARCH_CMPXCHG

[Nick Piggin]

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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