aboutsummaryrefslogtreecommitdiffstats
path: root/net
diff options
context:
space:
mode:
authorBen Greear <greearb@candelatech.com>2010-11-08 12:33:48 +0000
committerDavid S. Miller <davem@davemloft.net>2010-11-12 14:03:24 -0800
commit403856532734317d25ec86ab1e75b8133db7acc6 (patch)
treea294c1cba6ba395cd50c24c4e0f696645d6e13e2 /net
parentcbaf087a9f5e4721e83e8681ef328158f2298c6f (diff)
downloadmrst-s0i3-test-403856532734317d25ec86ab1e75b8133db7acc6.tar.gz
mrst-s0i3-test-403856532734317d25ec86ab1e75b8133db7acc6.tar.xz
mrst-s0i3-test-403856532734317d25ec86ab1e75b8133db7acc6.zip
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>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/route.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index fc328339be9..96455ffb76f 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -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);