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Date: Tue, 30 Aug 2005 11:50:15 +0200
From: Andre Oppermann <andre@freebsd.org>
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To: Maxim Konovalov <maxim@macomnet.ru>
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Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: Re: cvs commit: src/sys/sys mbuf.h src/sys/kern uipc_mbuf.c
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Maxim Konovalov wrote:
> 
> Hi,
> 
> [...]
> > >   Add m_copymdata(struct mbuf *m, struct mbuf *n, int off, int len,
> > >    int prep, int how).
> > >
> > >   Copies the data portion of mbuf (chain) n starting from offset off
> > >   for length len to mbuf (chain) m.  Depending on prep the copied
> > >   data will be appended or prepended.  The function ensures that the
> > >   mbuf (chain) m will be fully writeable by making real (not refcnt)
> > >   copies of mbuf clusters.  For the prepending the function returns
> > >   a pointer to the new start of mbuf chain m and leaves as much
> > >   leading space as possible in the new first mbuf.
> >
> > This one is primarily for the new TCP reassembly which makes very
> > efficient use of mbufs.
> 
> Is it feasible to document all these new mbuf functions in mbuf.9?

Yes, upcoming.

-- 
Andre