git: uipc: Import mbuf utility function m_unshare() from FreeBSD.

[Nuno Antunes <nant@xxxxxxxxxxxxxxxxxxxxxxx>]

commit 0909f7982383f5d512b64b9a49b2dff9f3dbac66
Author: Nuno Antunes <nuno.antunes@gmail.com>
Date:   Sat Sep 18 02:28:50 2010 +0100

    uipc: Import mbuf utility function m_unshare() from FreeBSD.
    
    * This function creates a version of the specified mbuf chain whose
      contents can be safely modified without affecting other users.
    
    Taken-from: FreeBSD

Summary of changes:
 share/man/man9/mbuf.9 |   19 ++++++-
 sys/kern/uipc_mbuf.c  |  144 +++++++++++++++++++++++++++++++++++++++++++++++++
 sys/sys/mbuf.h        |    1 +
 3 files changed, 163 insertions(+), 1 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/0909f7982383f5d512b64b9a49b2dff9f3dbac66


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