On Tue, 12 Apr 2022 13:29:42 -0700 Axel Rasmussen axelrasmussen@google.com wrote:
Prefer this new interface, but if using it fails for any reason just fall back to using userfaultfd(2) as before.
This seems a poor idea - the old interface will henceforth be untested.
Why not tweak the code to test both interfaces?