From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Wed, 23 Jan 2008 06:39:26 +0000 (-0800)
Subject: [INET]: Fix truesize setting in ip_append_data
X-Git-Tag: v2.6.24~10^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f945fa7ad9c12a3356a3de7fb2143ccc2f2c3bca;p=pandora-kernel.git

[INET]: Fix truesize setting in ip_append_data

As it is ip_append_data only counts page fragments to the skb that
allocated it.  As such it means that the first skb gets hit with a
4K charge even though it might have only used a fraction of it while
all subsequent skb's that use the same page gets away with no charge
at all.

This bug was exposed by the UDP accounting patch.

[ The wmem_alloc bumping needs to be moved with the truesize,
  noticed by Takahiro Yasui.  -DaveM ]

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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