Remove the residual geometry code and datastructures from FFS (keep some kind of
allocation groups but without most of what cylinder groups now have) and replace
blocks and fragments with extents, yielding a much simpler filesystem well
suited for modern disks. The result would be useful to many operating systems
beyond just NetBSD, since UFS/FFS is used in so many different kernels.
CVSweb for NetBSD wikisrc <wikimaster@NetBSD.org> software: FreeBSD-CVSweb