> IIRC, you cannot implement RCU in non GPL software (unless IBM gives > approval for it).
Why not? Even if it's patented, it's unlikely to be patented anywhere but the USA (certainly the Wikipedia page gives no reason to think so); there's no reason the rest of the world should have to suffer the boneheadedness the USA has chosen to impose on itself. Since NetBSD is a USA entity, there _is_ a reason for NetBSD to put up with the USA's idiocies, but I see no reason someone in the sane world can't implement it and make patches (to NetBSD or anything else) available. I suspect the USA patent is invalid, too, though (especially given its date) it's unlikely anyone with deep enough pockets to take it on cares. /~\ The ASCII Mouse \ / Ribbon Campaign X Against HTML [email protected] / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B
