linux-kernel - Re: [PATCH] serial8250: ratelimit "too much work" error

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Date:	Mon, 04 Oct 2010 15:10:59 -0700
From:	Joe Perches <joe@...ches.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Daniel Drake <dsd@...top.org>, linux-serial@...r.kernel.org,
	linux-kernel@...r.kernel.org, Alan Cox <alan@...rguk.ukuu.org.uk>,
	Greg KH <greg@...ah.com>
Subject: Re: [PATCH] serial8250: ratelimit "too much work" error

On Mon, 2010-10-04 at 15:02 -0700, Andrew Morton wrote:
> On Mon, 4 Oct 2010 14:51:01 -0700
> Andrew Morton <akpm@...ux-foundation.org> wrote:
> 
> > someone stuck a
> > DEFINE_RATELIMIT_STATE() in include/linux/kernel.h and it ain't defined
> > anywhere.  Let me fix that up...
> 
> Well that's a PITA.  Can't include ratelimit.h into kernel.h because a)
> it'll slow everyone's compiels down and b) ratelimit.h needs spinlock.h
> which surely needs kernel.h.  Fixable by adding a new
> printk_ratelimit.h and including that from 135 source files, blah.
> 
> I'll give up and pronounce that users of printk_ratelimited() need to
> include ratelimit.h as well.

What I suggested several months ago was to move the
macro definitions to ratelimit.h

http://lkml.org/lkml/2010/2/18/377


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