anchor.diff:  
   handle_cast({del_exclusion, {Mod, Idx}}, State=#state{excl=Excl}) ->
       Excl2 = ordsets:del_element({Mod, Idx}, Excl),
  -    {noreply, State#state{excl=Excl2}, timeout()};
  +    {noreply, State#state{excl=Excl2}};
   
   handle_cast({add_exclusion, {Mod, Idx}}, State=#state{excl=Excl}) ->
       {ok, Ring} = riak_core_ring_manager:get_raw_ring(),
  
positive.code:             end,
  
              %% removed the handoff from the list of active handoffs
              {noreply, State#state{handoffs=NewHS}, timeout()};
          false ->
              {noreply, State, timeout()}
      end.
  
  
  
negative.code:             {_Keep,Discard}=lists:split(Limit,HS),
              [erlang:exit(Pid,max_concurrency) ||
                  #handoff_status{transport_pid=Pid} <- Discard],
              {reply, ok, State};
          false ->
              {reply, ok, State}
      end;
  
  handle_call(get_concurrency, _From, State) ->
  