On 23 February 2010 19:04, Joe Talbott <jose...@dragonflybsd.org> wrote: > I've been digging around a bit in the nullfs and unionfs code. So far [...] > I haven't yet read the unionfs papers so the theory is still very > generalized in my head. Basically as I understand it all writes > should go to an upper level vnode and reads should try the upper level > first and fall through to the lower level if there is no upper shadow > copy. Removes should always operate on the upper level as well as > creates and renames. > > Please let me know your thoughts and most importantly any tips and
FWIW LWN ran a serie of articles explaining various unionfs approaches: http://lwn.net/Articles/327738/
