From: David S. Miller <davem@davemloft.net>
Date: Fri, 6 May 2011 22:02:07 +0000 (-0700)
Subject: inet: Decrease overhead of on-stack inet_cork.
X-Git-Tag: v3.0-rc1~377^2~158
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bdc712b4c2baf9515887de3a52e7ecd89fafc0c7;p=pandora-kernel.git

inet: Decrease overhead of on-stack inet_cork.

When we fast path datagram sends to avoid locking by putting
the inet_cork on the stack we use up lots of space that isn't
necessary.

This is because inet_cork contains a "struct flowi" which isn't
used in these code paths.

Split inet_cork to two parts, "inet_cork" and "inet_cork_full".
Only the latter of which has the "struct flowi" and is what is
stored in inet_sock.

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