From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Tue, 7 Dec 2010 12:20:47 +0000 (+0000)
Subject: tcp: protect sysctl_tcp_cookie_size reads
X-Git-Tag: v2.6.37-rc6~14^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f19872575ff7819a3723154657a497d9bca66b33;p=pandora-kernel.git

tcp: protect sysctl_tcp_cookie_size reads

Make sure sysctl_tcp_cookie_size is read once in
tcp_cookie_size_check(), or we might return an illegal value to caller
if sysctl_tcp_cookie_size is changed by another cpu.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Cc: William Allen Simpson <william.allen.simpson@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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