Re: VM fixes [1/4]

[Jeff Garzik]

On Fri, Dec 24, 2004 at 07:20:31PM +0100, Andrea Arcangeli wrote:
> On Fri, Dec 24, 2004 at 10:00:16AM -0800, David S. Miller wrote:
> > On Fri, 24 Dec 2004 18:35:19 +0100
> > Andrea Arcangeli <andrea@xxxxxxx> wrote:
> > 
> > > I made used_math a char at the light of later patches. per-cpu atomicity
> > > with byte granularity is provided by all archs AFIK.
> > 
> > Older Alpha's need to read-modify-write a word to implement
> > byte ops.
> 
> Yep, I remeber this was the case in some old alpha. But did they support
> smp too? I can't see how that old hardware could support smp. If they're
> UP they're fine.

Sure... there were older Alpha SMP boxes without the BWX and CIX
extensions.

	Jeff



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