From: Eric Dumazet <edumazet@google.com>
Date: Mon, 29 Sep 2014 20:29:15 +0000 (-0700)
Subject: net: cleanup and document skb fclone layout
X-Git-Tag: fixes-against-v3.18-rc2~144^2~75
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d0bf4a9e92b9a93ffeeacbd7b6cb83e0ee3dc2ef;p=pandora-kernel.git

net: cleanup and document skb fclone layout

Lets use a proper structure to clearly document and implement
skb fast clones.

Then, we might experiment more easily alternative layouts.

This patch adds a new skb_fclone_busy() helper, used by tcp and xfrm,
to stop leaking of implementation details.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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