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SubjectRe: [rfc][patch] queued spinlocks (i386)
On Fri, 23 Mar 2007, Nick Piggin wrote:

> On Fri, Mar 23, 2007 at 11:04:18AM +0100, Ingo Molnar wrote:
> >
> > * Nick Piggin <npiggin@suse.de> wrote:
> >
> > > Implement queued spinlocks for i386. [...]
> >
> > isnt this patented by MS? (which might not worry you SuSE/Novell guys,
> > but it might be a worry for the rest of the world ;-)
>
> I never thought a FIFO queue would be patentable.
>
> Do you have a reference to the patent number?

FWIW, MS patented even the preprocessor in computer languages ;)
Holding a patent does not make it automatically enforceable.
I remember thare was a discussion time ago about queued spinlocks on lkml.



- Davide


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