Re: [RFC net-next 0/2] net: Use net_<level>_ratelimit

[Joe Perches <joe-6d6DIl74uiNBDgjK7y7TUQ@public.gmane.org>]

On Tue, 2012-05-15 at 13:45 -0400, David Miller wrote:
> From: Joe Perches <joe-6d6DIl74uiNBDgjK7y7TUQ@public.gmane.org>
> Date: Mon, 14 May 2012 00:56:24 -0700
> 
> > net_ratelimit() like __ratelimit() is too easy to misuse.
> > 
> > Add simplifying macros similar to pr_<level>_ratelimited
> > that combines the test of net_ratelimit and logging.
> > 
> > Joe Perches (2):
> >   net: Add net_ratelimited_function and net_<level>_ratelimited macros
> >   net: Convert net_ratelimit uses to net_<level>_ratelimited
> 
> These look fine to me so I've applied them to net-next and am
> sanity checking the build right now.

OK, but fyi, there's a possible issue with !CONFIG_DEBUG
builds because these patches converted some uses of
	if (net_ratelimit())
		printk(KERN_DEBUG ...
to
	net_dbg_ratelimited()

These messages are no longer emitted when DEBUG isn't defined
and not using dynamic_debug.  I'm not sure that's a real
problem, but it's a difference.

I could produce a net_printk_ratelimited that would keep
the original behavior if necessary.

	net_printk_ratelimited(KERN_DEBUG etc...)

cheers, Joe