From: Jarek Poplawski <jarkao2@gmail.com>
Date: Sun, 1 Feb 2009 08:41:42 +0000 (-0800)
Subject: net: Optimize memory usage when splicing from sockets.
X-Git-Tag: v2.6.30-rc1~662^2~865
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4fb669948116d928ae44262ab7743732c574630d;p=pandora-kernel.git

net: Optimize memory usage when splicing from sockets.

The recent fix of data corruption when splicing from sockets uses
memory very inefficiently allocating a new page to copy each chunk of
linear part of skb. This patch uses the same page until it's full
(almost) by caching the page in sk_sndmsg_page field.

With changes from David S. Miller <davem@davemloft.net>

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

Reading git-diff-tree failed