K 10 svn:author V 3 mav K 8 svn:date V 27 2018-10-03T15:34:49.726119Z K 7 svn:log V 355 MFC r337970: 9738 Fix third block copy allocations, broken at 9112. Use METASLAB_WEIGHT_CLAIM weight to allocate tertiary blocks. Previous use of METASLAB_WEIGHT_SECONDARY for that caused errors later on metaslab_activate_allocator() call, leading to massive load of unneeded metaslabs and write freezes. Reviewed by: Paul Dagnelie END