rem: struct devfs_vnode *v = (struct devfs_vnode *)_v;
add: struct devfs_vnode *vnode = (struct devfs_vnode *)_v;
context: devfs_put_vnode(fs_cookie _fs, fs_vnode _v, bool r){#if DEVFS_TRACE	struct devfs_vnode *v = (struct devfs_vnode *)_v;	TRACE(("devfs_putvnode: entry on vnode 0x%x 0x%x, r %d\n", v->id, r));#endif	return 0; // whatever}