Re: netfs part of a console server with server-client model

[Thomas Bushnell, BSG]

Wolfgang Jährling <wolfgang@pro-linux.de> writes:

> >   if (strcmp (name, "..") == 0)
> >     {
> >       /* Parent directory -- if this is the root directory, return
> >          EAGAIN.  Otherwise return the root node, because we know
> >          that our hierarchy is only one level deep.  */
> 
> Why do we return EAGAIN in this case? I don't understand that (and
> neither did the people I was asking about it on #hurd).

EAGAIN in this case is not actually an error.  It's a signal to the
caller that the lookup was for ".. from the root directory", which
requires special work.

Thomas