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[NETNS]: Pass correct namespace in ip_rt_get_source.
ip_rt_get_source is the infamous place for which dst_ifdown kludges have been implemented. This means that rt->u.dst.dev can be safely dereferrenced obtain nd_net. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1559,7 +1559,7 @@ void ip_rt_get_source(u8 *addr, struct rtable *rt)
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if (rt->fl.iif == 0)
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src = rt->rt_src;
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else if (fib_lookup(&init_net, &rt->fl, &res) == 0) {
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else if (fib_lookup(rt->u.dst.dev->nd_net, &rt->fl, &res) == 0) {
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src = FIB_RES_PREFSRC(res);
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fib_res_put(&res);
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} else
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