this.fs = fs; log.setLevel(Level.DEBUG); if((iNode.getFlags() & Ext2Constants.EXT2_INDEX_FL)== 1) mode = Ext2FileSystem.RO; else mode = fs.getMode();  log.debug("directory size: "+iNode.getSize());
	public Ext2Directory(INode iNode) {		this.iNode=iNode;		valid=true;	}