Valerie Aurora wrote a set of articles recently on the various union-type filesystems Linux Weekly News. Are you thinking about getting involved with union mounts? According to the articles, there are still some serious problems with readdir().
http://lwn.net/Articles/326818 http://lwn.net/Articles/324416 http://lwn.net/Articles/322913 ------------------------------------------------------------------------------ This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com
