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

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[ Upstream commit a3300ef4bb ]

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hannes Frederic Sowa
2013-12-07 03:33:45 +01:00
committed by Greg Kroah-Hartman
parent c3ac8a1343
commit e28c2d64f8
1 changed files with 3 additions and 5 deletions
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8
net/ipv6/route.c
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@@ -2099,12 +2099,10 @@ 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);