code: public boolean isBlockMarked(long blockId) {
      for (StorageTierView tierView : mTierViews) {
        for (StorageDirView dirView : tierView.getDirViews()) {
          if (dirView.isMarkedToMoveOut(blockId)) {
            return true;
          }
        }
      }
      return false;
    }
docs: Tests if the block is marked to move out of its current dir in this view.
  
  @param blockId the id of the block
  @return boolean, true if the block is marked to move out