Plus the helper LOCK_PATH2 and UNLOCK_PATH2 macros. Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Jung-uk Kim <jkim@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>