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authorJarek Poplawski <jarkao2@gmail.com>2009-02-01 00:41:42 -0800
committerDavid S. Miller <davem@davemloft.net>2009-02-01 00:41:42 -0800
commit4fb669948116d928ae44262ab7743732c574630d (patch)
tree0be7481f6339fe4cb32faf4047f15f7cc962babc /drivers/dio
parent31f4574774e98aa275aeeee94f41ce042285ed8e (diff)
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>
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