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    SubjectRe: [PATCH RFC] tun: experimental zero copy tx support
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    On Mon, 2012-05-14 at 22:31 +0300, Michael S. Tsirkin wrote:
    > On Mon, May 14, 2012 at 09:21:47PM +0200, Eric Dumazet wrote:
    > > On Mon, 2012-05-14 at 22:14 +0300, Michael S. Tsirkin wrote:
    > >
    > > > They seem to be in net-next, or did I miss something?
    > >
    > > Yes, you re-introduce in this patch some bugs already fixed in
    > macvtap
    >
    > Could explain why I see some problems in testing :)
    > Maybe common code should go into net/core?
    > I couldn't decide whether the increase in kernel
    > size is worth it.

    Which problem you hit during testing?

    The logic of zerocopy_sg_from_iovec should work well. Jason's fix made
    the code more clear.

    Thanks
    Shirley



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