Commit a3300ef4 authored Dec 07, 2013 by Hannes Frederic Sowa Committed by David S. Miller Dec 09, 2013

ipv6: don't count addrconf generated routes against gc limit



Brett Ciphery reported that new ipv6 addresses failed to get installed
because the addrconf generated dsts where counted against the dst gc
limit. We don't need to count those routes like we currently don't count
administratively added routes.

Because the max_addresses check enforces a limit on unbounded address
generation first in case someone plays with router advertisments, we
are still safe here.

Reported-by: Brett Ciphery <brett.ciphery@windriver.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 6a46ff87

net/ipv6/route.c

+3 −5

Original line number	Diff line number	Diff line
		@@ -2166,12 +2166,10 @@ struct rt6_info addrconf_dst_alloc(struct inet6_dev idev,
		bool anycast)
		{
		struct net *net = dev_net(idev->dev);
		struct rt6_info *rt = ip6_dst_alloc(net, net->loopback_dev, 0, NULL);

		if (!rt) {
		net_warn_ratelimited("Maximum number of routes reached, consider increasing route/max_size\n");
		struct rt6_info *rt = ip6_dst_alloc(net, net->loopback_dev,
		DST_NOCOUNT, NULL);
		if (!rt)
		return ERR_PTR(-ENOMEM);
		}

		in6_dev_hold(idev);

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