Re: [PATCH] WorkStruct: Implement generic UP cmpxchg() where an arch doesn't support it

[Al Viro]

On Wed, Dec 06, 2006 at 11:05:22AM -0800, Linus Torvalds wrote:
> 
> 
> On Wed, 6 Dec 2006, Christoph Lameter wrote:
> >
> > I'd really appreciate a cmpxchg that is generically available for 
> > all arches. It will allow lockless implementation for various performance 
> > criticial portions of the kernel.
> 
> I suspect ARM may have been the last one without one, no?

No.  sparc32 doesn't have one, for instance.
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