This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.
Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.
struct lfs.
sovs@diku.dk:
The pad2 field in struct lfs is a kludge. You
need it because the raw devices has to be written in DEV_BSIZE. The
lfs_maxsymlinklen is needed because the tells the UFS code that we
want to use 4.4BSD directory layout insted of FreeBSD 1.1.5.
Reviewed by: Justin Gibbs
Submitted by: sovs@diku.dk
