4827 nfs4: slow file locking
4837 NFSv4 client lock retry delay upper limit should be shorter

*** 425,435 ****
  extern int      nfs4_access_purge_rp(rnode4_t *);
  
  extern int      nfs4_free_data_reclaim(rnode4_t *);
  extern void     nfs4_rnode_invalidate(struct vfs *);
  
- extern time_t   r2lease_time(rnode4_t *);
  extern int      nfs4_directio(vnode_t *, int, cred_t *);
  
  /* shadow vnode functions */
  extern void     sv_activate(vnode_t **, vnode_t *, nfs4_fname_t **, int);
  extern vnode_t  *sv_find(vnode_t *, vnode_t *, nfs4_fname_t **);
--- 425,434 ----