netdev - Re: [PATCH net-next v2 3/3] bonding: convert pr_xxx() to pr_xxx

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Date:	Tue, 18 Mar 2014 04:14:22 -0700
From:	Joe Perches <joe@...ches.com>
To:	Ding Tianhong <dingtianhong@...wei.com>
Cc:	fubar@...ibm.com, vfalico@...hat.com, andy@...yhouse.net,
	kaber@...sh.net, davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: [PATCH net-next v2 3/3] bonding: convert pr_xxx() to
 pr_xxx_ratelimited() for arp interval

On Tue, 2014-03-18 at 04:01 -0700, Joe Perches wrote:
> On Tue, 2014-03-18 at 18:43 +0800, Ding Tianhong wrote:
> > The debug log in the arp interval should be rate limited, otherwise would
> > occur spam the log, so convert them.
[]
> Another way to do this is to use the
> more global net_ratelimit() before
> each existing pr_<level>.
> 
> Not suggesting one or the other is
> right or wrong here, it's just an option.

Another option is to use the net_<level>_ratelimited
functions, but I'm not sure these are used much
outside of net/.

> > diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
> 
> > @@ -2131,32 +2131,33 @@ static void bond_arp_send(struct net_device *slave_dev, int arp_op,
> >  {
> >  	struct sk_buff *skb;
> >  
> > -	pr_debug("arp %d on slave %s: dst %pI4 src %pI4\n",
> > -		 arp_op, slave_dev->name, &dest_ip, &src_ip);
> > +	pr_debug_ratelimited("arp %d on slave %s: dst %pI4 src %pI4\n",
> > +			     arp_op, slave_dev->name, &dest_ip, &src_ip);
> 
> 	if (net_ratelimit())
> 		pr_debug(etc...)

or

	net_dbg_ratelimited(etc...)


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