Re: [Qemu-devel] [PATCH] net: flush NetQueue before to send new packets

[Jason Wang <jasowang@redhat.com>]

On 2016年07月19日 22:33, Stefano Garzarella wrote:
> qemu_net_queue_send() and qemu_net_queue_send_iov() can flush
> enqueued packets before delivering a new packet, in this way the original
> packet ordering is preserved.
>
> Signed-off-by: Stefano Garzarella <s.garzarella@evidence.eu.com>
> ---
>   net/queue.c | 8 ++++----
>   1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/net/queue.c b/net/queue.c
> index 9c32abd..aa18e5e 100644
> --- a/net/queue.c
> +++ b/net/queue.c
> @@ -196,14 +196,14 @@ ssize_t qemu_net_queue_send(NetQueue *queue,
>           return 0;
>       }
>   
> +    qemu_net_queue_flush(queue);
> +
>       ret = qemu_net_queue_deliver(queue, sender, flags, data, size);
>       if (ret == 0) {
>           qemu_net_queue_append(queue, sender, flags, data, size, sent_cb);
>           return 0;
>       }
>   
> -    qemu_net_queue_flush(queue);
> -
>       return ret;
>   }
>   
> @@ -221,14 +221,14 @@ ssize_t qemu_net_queue_send_iov(NetQueue *queue,
>           return 0;
>       }
>   
> +    qemu_net_queue_flush(queue);
> +
>       ret = qemu_net_queue_deliver_iov(queue, sender, flags, iov, iovcnt);
>       if (ret == 0) {
>           qemu_net_queue_append_iov(queue, sender, flags, iov, iovcnt, sent_cb);
>           return 0;
>       }
>   
> -    qemu_net_queue_flush(queue);
> -
>       return ret;
>   }
>   

Queued for 2.8.

Thanks