public byte[] getINodeTableBlock(int blockNo) throws FileSystemException, IOException{
public synchronized byte[] getINodeTableBlock(int blockNo) throws FileSystemException, IOException{
	public byte[] getINodeTableBlock(int blockNo) throws FileSystemException, IOException{		if(blockNo < blockCount) 			return fs.getBlock(firstBlock+blockNo);		else throw new FileSystemException("Trying to get block #"+blockNo+			"of an inode table that only has "+blockCount+" blocks");	}