K 10 svn:author V 3 mav K 8 svn:date V 27 2013-04-18T11:13:48.319371Z K 7 svn:log V 288 MFC r248694: In GEOM DISK: - Replace single done mutex with per-disk ones. On system with several disks on several HBAs that removes small, but measurable lock congestion. - Modify disk destruction process to not destroy the mutex prematurely. - Remove some extra pointer derefences. END