On Wed, 5 Oct 2022 at 09:15, Christian Brauner <brauner@xxxxxxxxxx> wrote: > We're just talking about thet fact that > {g,s}etxattr(system.posix_acl_{access,default}) work on cifs but > getting acls based on inode operations isn't supported. Consequently you > can't use the acls for permission checking in the vfs for cifs. If as > you say below that's intentional because the client doesn't perform > access checks then that's probably fine. Now I just need to wrap my head around how this interacts with all the uid/gid transformations. Do these (userns, mnt_userns) even make sense for the case of remotely checked permissions? Thanks, Miklos