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Posted Nov 14, 2013 4:03 UTC (Thu) by ncm (subscriber, #165)
Parent article: User-space RCU

When I last checked, RCU was patented, and only use in a Linux kernel was unrestricted -- all other uses required a patent license from IBM. Clearly urcu cannot take advantage of the kernel exception. Has something changed recently in the RCU patent landscape?

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Posted Nov 14, 2013 4:50 UTC (Thu) by dlang (subscriber, #313) [Link]

I believe it was free to use in GPL code, this is LGPL

But since one of the authors of this article is the inventor of RCU, I would assume that this is legal


Posted Nov 14, 2013 4:51 UTC (Thu) by josh (subscriber, #17465) [Link]

No, that's not the case; even before, it was licensed for use under GPL in any project (not just the Linux kernel), and it is now available for general use under either GPL or LGPL. See the file "lgpl-relicensing.txt" in the urcu repository.

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