netdev - [Bug] skb truesize does not update properly in many place

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Message-Id: <1318570381-4731-1-git-send-email-roy.qing.li@gmail.com>
Date:	Fri, 14 Oct 2011 13:33:01 +0800
From:	roy.qing.li@...il.com
To:	eric.dumazet@...il.com, netdev@...r.kernel.org
Cc:	roy.qing.li@...il.com
Subject: [Bug] skb truesize does not update properly in many place

Hi Eric Dumazet:

I see you are correcting the wrong skb truesize, I found the
same problem exists in many forms and many places, like:

After calling skb_fill_page_desc(), what should be updated 
to truesize.

pskb_expand_head(), __pskb_pull_tail()... do not update the
truesize.

...

-RongQing.Li
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