* Allow child to perform "before log" processing. Note
* that child decides whether to log a delta. Only BINs
* that fall into the required percentages and have not
* been cleaned will be logged with a delta.
*/
child.beforeLog(logManager, item, context);
} else {
/* Do not process if not dirty. Unlatch now. */
itemList.remove(itemList.size() - 1);
child.releaseLatch();