On Mon, Feb 08, 2021 at 07:18:56PM +0100, Paolo Bonzini wrote: > Fair enough. I would expect that pretty much everyone using follow_pfn will > at least want to switch to this one (as it's less bad and not impossible to > use correctly), but I'll squash this in: Daniel looked into them, so he may correct me, but the other follow_pfn users and their destiny are: - SGX, which is not modular and I think I just saw a patch to kill them - v4l videobuf and frame vector: I think those are going away entirely as they implement a rather broken pre-dmabuf P2P scheme - vfio: should use MMU notifiers eventually Daniel, what happened to your follow_pfn series?