Re: [Xen-devel] [PATCH] xen/netback: Calculate the number of SKB slots required correctly

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Thu, 2012-05-24 at 21:21 +0100, David Miller wrote:
> From: Simon Graham <simon.graham@xxxxxxxxxx>
> Date: Thu, 24 May 2012 12:26:07 -0400
> 
> > When calculating the number of slots required for a packet header, the code
> > was reserving too many slots if the header crossed a page boundary. Since
> > netbk_gop_skb copies the header to the start of the page, the count of
> > slots required for the header should be based solely on the header size.
> > 
> > This problem is easy to reproduce if a VIF is bridged to a USB 3G modem
> > device as the skb->data value always starts near the end of the first page.
> > 
> > Signed-off-by: Simon Graham <simon.graham@xxxxxxxxxx>
> 
> Applied.

Thanks both!

Ian.


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