On Wed, May 04, 2016 at 09:37:17AM -0400, David Golden wrote: > I strongly urge that any core changes be deferred until 5.25 and backported > later if successful and possible (which I think is what Nicholas is > suggesting). I certainly think that that's what I think that I'm suggesting. (In that coffee is no substitute for sleep, even at the strength that the office coffee machine is calibrated to) I don't see massive *harm* in unwinding the C const declaration for magic vtable, even at this point. (As Dave corrects me, it's 4K less *shared* memory, not absolute). But I think that it's going to be churn, and viable to re-instate (well before) v5.26.0. The change is probably *safe* - it was the state of things for over a decade. It's more about efficiency. Hence I'm neutral on that one, and can see both sides to it. The C level changes - yes, those *really* don't belong in anything release-worthy without a month or more of stewing in blead. And there's no "now or never" pressure for them, because they don't change any C interface externally visible, so are viable for backporting when ready. Nicholas Clark