diff options
Diffstat (limited to 'main/linux-grsec/0004-ipv4-rate-limit-updating-of-next-hop-exceptions-with.patch')
-rw-r--r-- | main/linux-grsec/0004-ipv4-rate-limit-updating-of-next-hop-exceptions-with.patch | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/main/linux-grsec/0004-ipv4-rate-limit-updating-of-next-hop-exceptions-with.patch b/main/linux-grsec/0004-ipv4-rate-limit-updating-of-next-hop-exceptions-with.patch deleted file mode 100644 index 9b2ad89132..0000000000 --- a/main/linux-grsec/0004-ipv4-rate-limit-updating-of-next-hop-exceptions-with.patch +++ /dev/null @@ -1,37 +0,0 @@ -From 90f586dba1465a73295d752abe2451e924ba1888 Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Timo=20Ter=C3=A4s?= <timo.teras@iki.fi> -Date: Mon, 27 May 2013 08:33:10 +0300 -Subject: [PATCH 4/6] ipv4: rate limit updating of next hop exceptions with - same pmtu -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -The tunnel devices call update_pmtu for each packet sent, this causes -contention on the fnhe_lock. Ignore the pmtu update if pmtu is not -actually changed, and there is still plenty of time before the entry -expires. - -Signed-off-by: Timo Teräs <timo.teras@iki.fi> ---- - net/ipv4/route.c | 4 ++++ - 1 file changed, 4 insertions(+) - -diff --git a/net/ipv4/route.c b/net/ipv4/route.c -index 8dedfeb..85b9c07 100644 ---- a/net/ipv4/route.c -+++ b/net/ipv4/route.c -@@ -947,6 +947,10 @@ static void __ip_rt_update_pmtu(struct rtable *rt, struct flowi4 *fl4, u32 mtu) - if (mtu < ip_rt_min_pmtu) - mtu = ip_rt_min_pmtu; - -+ if (rt->rt_pmtu == mtu && -+ time_before(jiffies, dst->expires - ip_rt_mtu_expires / 2)) -+ return; -+ - rcu_read_lock(); - if (fib_lookup(dev_net(dst->dev), fl4, &res) == 0) { - struct fib_nh *nh = &FIB_RES_NH(res); --- -1.8.2.3 - |