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Date:   Tue, 28 Feb 2017 13:47:56 -0800
From:   Eric Dumazet <>
To:     Andy Lutomirski <>
Cc:     Willem de Bruijn <>,
        Michael Kerrisk <>,
        netdev <>,
        Willem de Bruijn <>,
        Linux API <>
Subject: Re: [PATCH RFC v2 00/12] socket sendmsg MSG_ZEROCOPY

On Tue, 2017-02-28 at 13:09 -0800, Andy Lutomirski wrote:

> Does this mean that a user program that does a zerocopy send can cause
> a retransmitted segment to contain different data than the original
> segment?  If so, is that okay?

Same remark applies to sendfile() already, or other zero copy modes
(vmsplice() + splice() )

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