On Tue, 13 Jul 1999 14:39:09 -0700 (PDT) 
 Bill Studenmund <wrstuden@nas.nasa.gov> wrote:

 > To also do what we want, this count would have to be stored in struct
 > file, so it really doesn't matter if it's set by an fcntl or ioctl - it
 > has to be done high-enough in the chain that struct file's still around.
 > I'd prefer fcntl (normal one) as we're messing with struct file.

...the other thing that an fcntl flags lets you do is set it when you
*open* the file.  In something like a DMFS, the normal file system open
routine might have semantics that e.g. the archiving daemon may wish to
avoid!

        -- Jason R. Thorpe <thorpej@nas.nasa.gov>