From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 22 Jul 2010 19:09:08 +0000 (+0000)
Subject: net: pskb_expand_head() optimization
X-Git-Tag: v2.6.36-rc1~571^2~103
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fed66381d65a35198639f564365e61a7f256bf79;p=pandora-kernel.git

net: pskb_expand_head() optimization

Move frags[] at the end of struct skb_shared_info, and make
pskb_expand_head() copy only the used part of it instead of whole array.

This should avoid kmemcheck warnings and speedup pskb_expand_head() as
well, avoiding a lot of cache misses.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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