Re: [patch 04/41] cpu ops: Core piece for generic atomic per cpu operations

Nick Piggin
2008-06-12T00:58:21Z

On Thursday 12 June 2008 09:39, Christoph Lameter wrote:
> On Wed, 11 Jun 2008, Rusty Russell wrote:
> > > 4. The modeling of local_t on atomic_t limits it to 32bit!
> >
> > Again wrong. And adding an exclamation mark doesn't make it true.
>
> Ewww ... Its atomic_long_t ahh. Ok then there no 32 bit support. What about
> pointers?

sizeof(long) == sizeof(void *) in Linux, right?

If you were to support just a single data type, long would probably
be the most useful. Still, it might be more consistent to support
int and long, same as atomic.