K 10 svn:author V 6 dillon K 8 svn:date V 27 2001-11-18T07:11:00.000000Z K 7 svn:log V 180 MFC B_NOWDRAIN. This required moving B_AUTOCHAINDONE from flags to xflags (B_ -> BX_). Modify the VN device to use IO_NOWDRAIN (MFC from similar change in -current's MD device). END