netdev - [PATCH net-next 3/3] bonding: add ratelimit for bond_arp

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Date:	Tue, 25 Mar 2014 15:03:57 +0800
From:	Ding Tianhong <dingtianhong@...wei.com>
To:	<fubar@...ibm.com>, <vfalico@...hat.com>, <andy@...yhouse.net>,
	<joe@...ches.com>, <kaber@...sh.net>
CC:	<davem@...emloft.net>, <netdev@...r.kernel.org>
Subject: [PATCH net-next 3/3] bonding: add ratelimit for bond_arp_rcv()

Add ratelimit to avoid spam when processing the arp package.

Signed-off-by: Ding Tianhong <dingtianhong@...wei.com>
---
 drivers/net/bonding/bond_main.c | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 9e8b888..7328a3f 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2239,13 +2239,15 @@ static void bond_validate_arp(struct bonding *bond, struct slave *slave, __be32
 	int i;
 
 	if (!sip || !bond_has_this_ip(bond, tip)) {
-		pr_debug("bva: sip %pI4 tip %pI4 not found\n", &sip, &tip);
+		pr_debug_ratelimited("bva: sip %pI4 tip %pI4 not found\n",
+				     &sip, &tip);
 		return;
 	}
 
 	i = bond_get_targets_ip(bond->params.arp_targets, sip);
 	if (i == -1) {
-		pr_debug("bva: sip %pI4 not found in targets\n", &sip);
+		pr_debug_ratelimited("bva: sip %pI4 not found in targets\n",
+				     &sip);
 		return;
 	}
 	slave->last_rx = jiffies;
@@ -2272,8 +2274,8 @@ int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond,
 
 	alen = arp_hdr_len(bond->dev);
 
-	pr_debug("bond_arp_rcv: bond %s skb->dev %s\n",
-		 bond->dev->name, skb->dev->name);
+	pr_debug_ratelimited("bond_arp_rcv: bond %s skb->dev %s\n",
+			     bond->dev->name, skb->dev->name);
 
 	if (alen > skb_headlen(skb)) {
 		arp = kmalloc(alen, GFP_ATOMIC);
@@ -2297,10 +2299,11 @@ int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond,
 	arp_ptr += 4 + bond->dev->addr_len;
 	memcpy(&tip, arp_ptr, 4);
 
-	pr_debug("bond_arp_rcv: %s %s/%d av %d sv %d sip %pI4 tip %pI4\n",
-		 bond->dev->name, slave->dev->name, bond_slave_state(slave),
-		 bond->params.arp_validate, slave_do_arp_validate(bond, slave),
-		 &sip, &tip);
+	pr_debug_ratelimited("bond_arp_rcv: %s %s/%d av %d sv %d sip %pI4 tip %pI4\n",
+			     bond->dev->name, slave->dev->name,
+			     bond_slave_state(slave),
+			     bond->params.arp_validate,
+			     slave_do_arp_validate(bond, slave), &sip, &tip);
 
 	curr_active_slave = rcu_dereference(bond->curr_active_slave);
 
-- 
1.8.0


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