linux-kernel - Re: [patch 09/11] s390/irqs: Do not trace arch_local_{*,irq

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Message-ID: <20110704101053.38717f0b@mschwide>
Date:	Mon, 4 Jul 2011 10:10:53 +0200
From:	Martin Schwidefsky <schwidefsky@...ibm.com>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Heiko Carstens <heiko.carstens@...ibm.com>
Subject: Re: [patch 09/11] s390/irqs: Do not trace arch_local_{*,irq_*}
 functions

On Fri, 01 Jul 2011 23:04:44 -0400
Steven Rostedt <rostedt@...dmis.org> wrote:

> From: Steven Rostedt <srostedt@...hat.com>
> 
> Do not trace arch_local_save_flags(), arch_local_irq_*() and friends.
> Although they are marked inline, gcc may still make a function out of
> them and add it to the pool of functions that are traced by the function
> tracer. This can cause undesirable results (kernel panic, triple faults,
> etc).
> 
> Add the notrace notation to prevent them from ever being traced.
> 
> Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
> Cc: Heiko Carstens <heiko.carstens@...ibm.com>
> Signed-off-by: Steven Rostedt <rostedt@...dmis.org>

Applied to git390, thanks Steven.

-- 
blue skies,
   Martin.

"Reality continues to ruin my life." - Calvin.

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