On Sat, May 13, 2017 at 06:00:56PM +0100, Al Viro wrote: > > But I don't see the excuse for not just doing it. If nobody notices, > > it's an obvious improvement. And if somebody *does* notice, we know > > how to do it properly with unsafe_xyz_user(), because "__xyz_user()" > > most definitely isn't it. > > I think we ought to actually look through those places - there are few > enough of them (outside of arch/, that is) and stac/clac overhead is > not the only problem they tend to have. PS: just to make it clear - I do _not_ propose to keep that shit around indefinitely; I want __get_user()/__put_user() gone by the end of that work.