Avoiding changing log on flush call if nothing was added to the log (BUG#34712 maria_read_log changes log file content on several platforms though not needed) Fixed callback call (now under loghandler lock).
Avoiding changing log on flush call
if nothing was added to the log
(BUG#34712 maria_read_log changes log
file content on several platforms though not needed)
Fixed callback call (now under loghandler lock).


storage/maria/ma_loghandler.c:
  Flag that signaling about "everythig-flushed" state of
  the log added, to avoid changing log on flush request
  if nothing was written but horizon placed on the page boarder.
  Fixed callback call (now under loghandler lock).

flynn1973/mariadb-aix,ollie314/server,davidl-zend/zenddbi,flynn1973/mariadb-aix,flynn1973/mariadb-aix,natsys/mariadb_10.2,davidl-zend/zenddbi,flynn1973/mariadb-aix,natsys/mariadb_10.2,davidl-zend/zenddbi,ollie314/server,natsys/mariadb_10.2,davidl-zend/zenddbi,davidl-zend/zenddbi,davidl-zend/zenddbi,davidl-zend/zenddbi,ollie314/server,natsys/mariadb_10.2,ollie314/server,ollie314/server,natsys/mariadb_10.2,davidl-zend/zenddbi,natsys/mariadb_10.2,natsys/mariadb_10.2,davidl-zend/zenddbi,flynn1973/mariadb-aix,ollie314/server,flynn1973/mariadb-aix,ollie314/server,davidl-zend/zenddbi,ollie314/server,natsys/mariadb_10.2,flynn1973/mariadb-aix,slanterns/server,natsys/mariadb_10.2,davidl-zend/zenddbi,flynn1973/mariadb-aix,ollie314/server,flynn1973/mariadb-aix,natsys/mariadb_10.2,flynn1973/mariadb-aix,natsys/mariadb_10.2,ollie314/server,flynn1973/mariadb-aix,ollie314/server