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    SubjectRe: [RFC][PATCH v3 1/3] A device for zero-copy based on KVM virtio-net.
    On Thu, Apr 15, 2010 at 05:01:10PM +0800, Xin, Xiaohui wrote:
    > >It smells like a layering violation to look at the iocb->private field
    > >from a lower-level driver. I would have hoped that it's possible to implement
    > >this without having this driver know about the higher-level vhost driver
    > >internals. Can you explain why this is needed?
    > I don't like this too, but since the kiocb is maintained by vhost with a list_head.
    > And mp device is responsible to collect the kiocb into the list_head,
    > We need something known by vhost/mp both.

    Can't vhost supply a kiocb completion callback that will handle the list?


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