K 10 svn:author V 3 mav K 8 svn:date V 27 2020-05-19T14:31:47.355682Z K 7 svn:log V 348 MFC r360564: Cleanup LUN addition/removal. - Make ctl_add_lun() synchronous. Asynchronous addition was used by Copan's proprietary code long ago and never for upstream FreeBSD. - Move LUN enable/disable calls from backends to CTL core. - Serialize LUN modification and partially removal to avoid double frees. - Slightly unify backends code. END