"mount -o remount" non-compliant?

[Paul Fox]

 > 
 > >  > Boy this is a pain to get right.  But you're correct that we need to
 > >  > parse /etc/mtab.  Ok...
 > >
 > > is remount the only flag this applies to?
 > 
 > No, in theory it also applies to stuff like noatime, noexec...

but you can't just set noatime or noexec on an existing mount unless
you also use remount, right?  i guess i was wondering if there were
other operations with the same use-an-existing-mount notion as remount.

paul
=---------------------
 paul fox, pgf at brightstareng.com