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

@@ -425,11 +425,10 @@
 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 **);