From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Thu, 20 Jun 2013 02:01:33 +0000 (+0800)
Subject: neigh: only allow init_net to change the default neigh_parms
X-Git-Tag: v3.11-rc1~16^2~48
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=170d6f99541600ec7512f1d2b0b0c349009098d2;p=pandora-kernel.git

neigh: only allow init_net to change the default neigh_parms

Though we don't export the /proc/sys/net/ipv[4,6]/neigh/default/
directory to the un-init_net, but we can still use cmd such as
"ip ntable change name arp_cache locktime 129" to change the locktime
of default neigh_parms.

This patch disallows the un-init_net to find out the neigh_table.parms.
So the un-init_net will failed to influence the init_net.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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