On Thu, Sep 17, 2020 at 05:15:03AM +0100, Al Viro wrote: > Arrgh... That'd break shmem and similar filesystems... Still, it > feels like we should _not_ bother in cases when there's no ACL > for that sucker; after all, if get_acl() returns NULL, we quietly > return 0 and that's it. > > How about something like this instead? Do you plan to turn this into a submission? Rich, can you share your original reproducer? I would be really helpful to have it wired up in xfstests as a regression tests.