From: Pavel Emelyanov <xemul@openvz.org>
Date: Wed, 26 Mar 2008 11:55:52 +0300

> Add some flesh to ipv4_sysctl_init_net and ipv4_sysctl_exit_net,
> i.e. copy the table, alter .data pointers and register it per-net.
> 
> Other ipv4_table's sysctls are now global, but this is going to
> change once sysctl permissions patches migrate from -mm tree to 
> mainline in 2.6.26 merge window :)
> 
> Signed-off-by: Pavel Emelyanov <xemul@openvz.org>

Applied.