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ipv6: Warn users if maximum number of routes is reached. 

This gives users at least some clue as to what the problem
might be and how to go about fixing it.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Greear 2010-11-08 12:33:48 +00:00 committed by David S. Miller
parent cbaf087a9f
commit 4038565327
1 changed files with 5 additions and 1 deletions
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6
net/ipv6/route.c
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@ -1945,8 +1945,12 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
struct rt6_info *rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops);
struct neighbour *neigh;
if (rt == NULL)
if (rt == NULL) {
if (net_ratelimit())
pr_warning("IPv6: Maximum number of routes reached,"
" consider increasing route/max_size.\n");
return ERR_PTR(-ENOMEM);
}
dev_hold(net->loopback_dev);
in6_dev_hold(idev);