public static Path getBackReferencesDir(final Path storeDir, final String fileName) {
    return new Path(storeDir, BACK_REFERENCES_DIRECTORY_PREFIX + fileName);
  }
Get the directory to store the link back references
<p>
To simplify the reference count process, during the FileLink creation a back-reference is added
to the back-reference directory of the specified file.
@param storeDir Root directory for the link reference folder
@param fileName File Name with links
@return Path for the link back references.
hbase-server/src/main/java/org/apache/hadoop/hbase/io/FileLink.java