vnode
typedef struct vnode {
extern int nlm_frlock(struct vnode *, int, struct flock64 *, int, u_offset_t,
extern int nlm_shrlock(struct vnode *, int, struct shrlock *, int,
extern void nlm_register_lock_locally(struct vnode *, struct nlm_host *,
struct nlm_host *, struct nlm4_lock *, struct vnode *);
typedef struct vnode {