expandable RAID-Z

*** 841,853 ****
                                  mc->mc_rotor = mg->mg_next;
                                  mc->mc_allocated = 0;
                          }
  
                          DVA_SET_VDEV(&dva[d], vd->vdev_id);
!                         DVA_SET_OFFSET(&dva[d], offset);
!                         DVA_SET_GANG(&dva[d], 0);
                          DVA_SET_ASIZE(&dva[d], asize);
  
                          return (0);
                  }
  next:
                  mc->mc_rotor = mg->mg_next;
--- 841,856 ----
                                  mc->mc_rotor = mg->mg_next;
                                  mc->mc_allocated = 0;
                          }
  
                          DVA_SET_VDEV(&dva[d], vd->vdev_id);
!                         if (vd->vdev_ops->vdev_op_grid != NULL)
!                                 DVA_SET_GRID(&dva[d],
!                                     vd->vdev_ops->vdev_op_grid(vd);
                          DVA_SET_ASIZE(&dva[d], asize);
+                         DVA_SET_GANG(&dva[d], 0);
+                         DVA_SET_OFFSET(&dva[d], offset);
  
                          return (0);
                  }
  next:
                  mc->mc_rotor = mg->mg_next;