Richard Guy Briggs <rgb at redhat.com> wrote: > > Perhaps I'm missing something here, but let me ask again, how does > > userspace distinguish between an unset nfmark and a nfmark of > > 0xffffffff? > > It can't. It can if you log it as 0, as I asked in patch 1 review. (You wouldn't log sk uid of 0 as -1 either, would you?)