From: Haiyang Zhang <haiya...@microsoft.com>
Date: Thu,  9 Jan 2014 14:24:47 -0800

> This will allow us to use bigger receive buffer, and prevent allocation 
> failure
> due to fragmented memory.
> 
> Signed-off-by: Haiyang Zhang <haiya...@microsoft.com>
> Reviewed-by: K. Y. Srinivasan <k...@microsoft.com>

Not until you start using paged SKBs in netvsc_recv_callback.

Whatever fragmention you think you're avoiding in the hyperv layer,
you're still going to get from the:

        skb = netdev_alloc_skb_ip_align(net, packet->total_data_buflen);

call there.

This change makes no sense in isolation, therefore I'm not applying it
until you also include the appropriate changes to avoid the same
exact fragmentation issue in netvsc_drv.c as stated above.
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