On Thu, Aug 05, 2010 at 01:13:55PM +0200, Miklos Szeredi wrote:
Just a quick note to say that my explicit design was to do as much as
possible in the VFS, except when adding a little support to the
low-level fs would make it significantly faster, simpler, and more
correct. I think for union mounts to perform moderately well, and to
avoid namespace problems, we can't build it 100% out of existing file
system parts like xattrs. However, I could be wrong and I will
definitely give any other implementation serious consideration.