In pmap_clear_attrs() use i386_atomic_clearbits_l() to only clear the bits necessary. Also move up the pmap_map_ptes() call to before the diagnostic check. okay art@, weingart@
In pmap_clear_attrs() use i386_atomic_clearbits_l() to only clear the
bits necessary. Also move up the pmap_map_ptes() call to before the
diagnostic check. okay art@, weingart@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars