K 10 svn:author V 2 mm K 8 svn:date V 27 2013-03-19T12:51:18.215562Z K 7 svn:log V 225 MFV r247580: Merge synctask code restructuring from vendor. Modify forward and backward compatibility to support new change. Illumos ZFS issues: 3464 zfs synctask code needs restructuring Sponsored by: Hybrid Logic Ltd. END