Re: st_nlink of directory nodes in shadowfs

[Thomas Bushnell, BSG]

Moritz Schulte <moritz@chaosdorf.de> writes:

> tb@becket.net (Thomas Bushnell, BSG) writes:
> 
> > But that's not so bad.  It doesn't mean checking every single entry
> > in both directories; it means checking only those elements which are
> > duplicated names.
> 
> Sure; I was referring to the dir_readdir()s needed for a simple
> directory lookup...

Oh, well you only need that once.

My thought has always been that an efficient shadow directory would
scan the underlying directories once on startup, and after that would
maintain correct information through the change-notification
mechanism.