[Midnightbsd-cvs] src: geom/mirror: fix serveral bugs.

[laffer1 at midnightbsd.org]

Log Message:
-----------
fix serveral bugs.  obtained from freebsd

Modified Files:
--------------
    src/sys/geom/mirror:
        g_mirror.c (r1.6 -> r1.7)
        (http://cvsweb.midnightbsd.org/src/sys/geom/mirror/g_mirror.c?r1=1.6&r2=1.7)
        g_mirror.h (r1.5 -> r1.6)
        (http://cvsweb.midnightbsd.org/src/sys/geom/mirror/g_mirror.h?r1=1.5&r2=1.6)
        g_mirror_ctl.c (r1.5 -> r1.6)
        (http://cvsweb.midnightbsd.org/src/sys/geom/mirror/g_mirror_ctl.c?r1=1.5&r2=1.6)