On Mon, Apr 24, 2023 at 06:09:52PM +0200, Jan Kara wrote: > So I'm maybe missing a bigger picture why we would like a change like this. > Because we still need to teach filesystems to handle pinned pages for the > usecases you don't forbid and for which we know there are users and then > what's the benefit of this patch? It immediately closes a security hole we have been talking about fixing for years already and still don't have a full fix for. An acknowledgment that this is not going to go away and starting to clamp down on the insecurity may motivate some investment in the proper fix. :) Jason