2 FreeBSD does not fsync!!!
5 Fix bug in executing/mapping new files.
6 cfs_mount bug: interaction with cfs_inactive no cfs_unsave.
7 vref/vn_lock == vget except no VXWANT which may be on.
8 Review locks: vn_lock/VOP_UNLOCK/lockmgr ...
11 Add missing VFS methods.
12 Do performance profile.
13 Tune hash algorithm used in cfs_subr.