[Midnightbsd-cvs] src: uipc_mbuf.c: Maintain read only state on mbuf copies.

[laffer1 at midnightbsd.org]

Log Message:
-----------
Maintain read only state on mbuf copies.  This was causing data corruption with sendfile(2).

Modified Files:
--------------
    src/sys/kern:
        uipc_mbuf.c (r1.7 -> r1.8)
        (http://cvsweb.midnightbsd.org/src/sys/kern/uipc_mbuf.c?r1=1.7&r2=1.8)