vm/kern_lock.c moves to kern/kern_lock.c
process group hash tables are now dynamic
isofs => cd9660
pull to 8.1 for 4.4BSD-Lite release
update osrelease to 4.4BSD-Lite
deprecate lofs file system
added union
added procfs fpregs support
isofs => isofs/cd9660
add USL's copyright notice
add isofs files.
added procfs files
af.c has been retired
lfs_bmap => lfs_balloc
4.4BSD snapshot (revision 8.1); add 1993 to copyright
desiredvnodes is int, not long
4.4BSD snapshot (revision 8.1)
it's not alpha anymore
break clustering out of vfs_bio.c into vfs_cluster.c
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