pc_dirent
struct pc_dirent lbp;
struct pc_dirent *ld = &lbp;
pc_read_long_fn(struct vnode *dvp, struct uio *uiop, struct pc_dirent *ld,
pc_read_short_fn(struct vnode *dvp, struct uio *uiop, struct pc_dirent *ld,
struct pc_dirent *, struct pcdir **, offset_t *, struct buf **);
struct pc_dirent *, struct pcdir **, offset_t *, struct buf **);