netdev - Re: [PATCHv2 net] sunvnet: set queue mapping when doing packet copies

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Message-ID: <1422570622.21689.41.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Thu, 29 Jan 2015 14:30:22 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	david.stevens@...cle.com, netdev@...r.kernel.org,
	sowmini.varadhan@...cle.com
Subject: Re: [PATCHv2 net] sunvnet: set queue mapping when doing packet
 copies

On Thu, 2015-01-29 at 14:15 -0800, David Miller wrote:

> Then we need to fix skb_segment() too.

My concern was that skb_segment() could be used in rx paths, with quite
different destructor semantics.

While from ndo_start_xmit(), I believe sane destructors should not
depend on skb being invariant, sk 'refcount' must be using
skb->truesize.





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