linux-kernel - Re: [PATCH 1/5] ftrace: limit use of check pages

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Message-ID: <alpine.LFD.1.10.0805271733120.3295@apollo.tec.linutronix.de>
Date:	Tue, 27 May 2008 17:34:04 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Steven Rostedt <rostedt@...dmis.org>
cc:	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	pq@....fi, proski@....org, sandmann@...hat.com,
	a.p.zijlstra@...llo.nl, Steven Rostedt <srostedt@...hat.com>
Subject: Re: [PATCH 1/5] ftrace: limit use of check pages

On Thu, 22 May 2008, Steven Rostedt wrote:

> The check_pages function is called often enough that it can cause problems
> with trace outputs or even bringing the system to a halt.
> 
> This patch limits the check_pages to the places that are most likely to
> have problems. The check is made at the flip between the global array and
> the max save array, as well as when the size of the buffers changes and
> the self tests.
> 
> This patch also removes the BUG_ON from check_pages and replaces it with
> a WARN_ON and disabling of the tracer.

Applied and fixed the typo.
 
> +		tracing_disabled = 0;		\

Thanks,
	tglx
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