Date: Wed, 01 Dec 1999 14:41:51 -0700 From: "Justin T. Gibbs" <gibbs@FreeBSD.org> To: Archie Cobbs <archie@FreeBSD.org> Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/kern uipc_mbuf.c src/sys/sys mbuf.h Message-ID: <199912012141.OAA00992@caspian.plutotech.com> In-Reply-To: Your message of "Wed, 01 Dec 1999 14:31:32 PST." <199912012231.OAA35086@freefall.freebsd.org>
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>archie 1999/12/01 14:31:32 PST > > Modified files: > sys/kern uipc_mbuf.c > sys/sys mbuf.h > Log: > The functions m_copym() and m_copypacket() return read-only copies, > because in the case of mbuf clusters they only increment the reference > count rather than actually copying the data. > > Add comments to this effect, and add a new routine called m_dup() that > returns a real, writable copy of an mbuf chain. How does this work in a 0 copy system? -- Justin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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