On Fri, Oct 13, 2017 at 1:54 PM, Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> wrote: >> >> And if nobody can be bothered to write the user-level code and test >> this patch-series, then obviously it's not important enough for the >> kernel to merge it. > > My guess is that it will take some time, probably measured in months, > to carry out this level of integration and testing to. That would be an argument if this was a new patch series. "Wait a few months". But that just isn't the case here. The fact is, these patches have been floating around in one form or another not for a couple of months, but for years. There's a LWN article about it from 2015, and it wasn't new back then either (slides from 2013). I wouldn't be surprised if there had been academic _papers_ written about the notion. So if there *still* is no actual real code around this, then that just strengthens my point - no way should we merge something where people haven't actually bothered to write the user-mode component for years and years. It really boils down to: "if nobody can be bothered to write the user mode parts after several years, why should it be merged into the kernel"? I don't think that's too much to ask for. Linus -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html