From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Greear Subject: [PATCH 2/2] IPv6: Warn users when route/max_entries is reached. Date: Mon, 8 Nov 2010 11:13:49 -0800 Message-ID: <1289243629-20789-2-git-send-email-greearb@candelatech.com> References: <1289243629-20789-1-git-send-email-greearb@candelatech.com> Cc: Ben Greear To: netdev@vger.kernel.org Return-path: Received: from mail.candelatech.com ([208.74.158.172]:50718 "EHLO ns3.lanforge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751649Ab0KHTOI (ORCPT ); Mon, 8 Nov 2010 14:14:08 -0500 In-Reply-To: <1289243629-20789-1-git-send-email-greearb@candelatech.com> Sender: netdev-owner@vger.kernel.org List-ID: Signed-off-by: Ben Greear --- :100644 100644 a275c6e... 348b34c... M net/ipv6/route.c net/ipv6/route.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index a275c6e..348b34c 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -1060,8 +1060,12 @@ static int ip6_dst_gc(struct dst_ops *ops) unsigned long rt_last_gc = net->ipv6.ip6_rt_last_gc; if (time_after(rt_last_gc + rt_min_interval, now) && - atomic_read(&ops->entries) <= rt_max_size) + atomic_read(&ops->entries) <= rt_max_size) { + if (net_ratelimit()) + pr_warning("IPv6: Maximum number of routes reached," + " consider increasing route/max_size.\n"); goto out; + } net->ipv6.ip6_rt_gc_expire++; fib6_run_gc(net->ipv6.ip6_rt_gc_expire, net); -- 1.6.2.5