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

Christoph Lameter
2006-12-06T20:12:11Z

On Wed, 6 Dec 2006, Matthew Wilcox wrote:

> On Wed, Dec 06, 2006 at 11:47:40AM -0800, Christoph Lameter wrote:
> > Nope this is a UP implementation. There is no cpu B.
>
> Follow the thread back. I'm talking about parisc. Machines exist (are
> still being sold) with up to 128 cores. I think the largest we've
> confirmed work are 8 CPUs.

And you only have an atomic get and clear atomic op? Amazing. Is this
really still in production?