linux-kernel - Re: [PATCH 11/11] dynamic_debug: use a single printk() to emit msgs

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Date:	Fri, 15 Jul 2011 09:16:20 -0700
From:	Joe Perches <joe@...ches.com>
To:	Bart Van Assche <bvanassche@....org>
Cc:	Jason Baron <jbaron@...hat.com>, gregkh@...e.de,
	jim.cromie@...il.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 11/11] dynamic_debug: use a single printk() to emit msgs

On Fri, 2011-07-15 at 18:10 +0200, Bart Van Assche wrote:
> On Fri, Jul 15, 2011 at 6:04 PM, Jason Baron <jbaron@...hat.com> wrote:
> > yes, but that approach uses 'KERN_CONT'. The point of patch 11/11 is to get rid
> > of KERN_CONT, which is racy.
> I know. What I'm trying to explain is that since patch 11/11 modifies
> dynamic_emit_prefix() such that it writes its output to a buffer there
> is no longer a need to write into that buffer with a single snprintf()
> call. Using multiple snprintf() calls is also fine. Hence it is
> possible to eliminate the two temporary arrays (tid[] and lineno[])
> from dynamic_emit_prefix() without reintroducing these races.

Ah, just so.  It's so easy to be narrow minded.

Jason, you are going to do this yes?

cheers, Joe

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