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

Linus Torvalds
2006-12-08T19:38:49Z

On Fri, 8 Dec 2006, Russell King wrote:
>
> I utterly disagree. I could code atomic_add() as:

Sure. And Alpha could do that too. If you write the C code a specific way,
you can make it work. That does NOT mean that you can expose it widely as
a portable interface - it's still just a very _nonportable_ interface that
you use internally within one architecture to implement other interfaces.

Linus