Re: 2.4.10pre7aa1

Dipankar Sarma (
Tue, 11 Sep 2001 19:57:51 +0530

On Tue, Sep 11, 2001 at 03:56:52PM +0200, Andrea Arcangeli wrote:
> Nothing is needed but without changes we would prefer not to include the
> rcu patch in the kernel. AFIK (and I'm far from being an expert here) I
> can upload the source protected by patent to and everybody
> but US citizens can safely run the code protected by patent without
> having to pay the patent holder. So in short the problem is that it
> wouldn't be nice if you could download freely the linux kernel but you
> couldn't use it freely in the US without first dropping the rcu patch.
> In short AFIK from your part you should just make a modification to the
> patent (or whatever else legal paperwork) saying that the usage of the
> rcu technology in GPL code is allowed free of charge.

I don't think the patent issue is going to be a problem since the work has
long been approved at IBM, legal-wise. It is just that none of us were
aware of what is required for grant of use.

I have already started the follow up process in Beaverton and will get back to
you ASAP. Sorry about the confusion.


Dipankar Sarma  <> Project:
Linux Technology Center, IBM Software Lab, Bangalore, India.
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