Re: exact semantics of union mounts (and TRYEMULROOT)

[Robert Elz <kre%munnari.OZ.AU@localhost>]

    Date:        Tue, 11 Jul 2017 14:31:36 -0400 (EDT)
    From:        Mouse <mouse%Rodents-Montreal.ORG@localhost>
    Message-ID:  <201707111831.OAA05757%Stone.Rodents-Montreal.ORG@localhost>

  | >> I don't think so, directory ops all happen at the upper level (or
  | >> nowhere).
  | > (it is also not what we currently do, [...])
  | 
  | No, it's not.  But it's pretty close to, and I think that it actually
  | was intended to mean "_modifying_ directory ops", 

Yes, it was, operations that change the directory (lookups, which is almost
all that is left) I considered to be a non-controversial case, and ops
that affect inodes (chown, chmod, ..) or file data, simply operate on the
files found.

kre