K 10 svn:author V 3 alc K 8 svn:date V 27 2012-07-01T18:27:13.196208Z K 7 svn:log V 169 MFC r233954, r236930 Micro-optimize free_pv_entry() for the expected case. Avoid unnecessary atomic operations for clearing PGA_WRITEABLE in pmap_remove_pages(). END