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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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