linux-kernel - Re: [patch 6/9] LTTng instrumentation

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Message-ID: <alpine.LFD.2.00.0903242011520.29264@localhost.localdomain>
Date:	Tue, 24 Mar 2009 20:14:06 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Ingo Molnar <mingo@...e.hu>
cc:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	ltt-dev@...ts.casi.polymtl.ca,
	Frederic Weisbecker <fweisbec@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Masami Hiramatsu <mhiramat@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	"Frank Ch. Eigler" <fche@...hat.com>,
	Hideo AOKI <haoki@...hat.com>,
	Takashi Nishiie <t-nishiie@...css.fujitsu.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Eduard - Gabriel Munteanu <eduard.munteanu@...ux360.ro>
Subject: Re: [patch 6/9] LTTng instrumentation - timer

On Tue, 24 Mar 2009, Ingo Molnar wrote:
> the init methods are missing from your patch entirely - and the rest 
> is partially incomplete as well.
> 
> Instrumentation of the del_timer() variants is missing. For a 
> complete lifetime analysis of timers this cannot be left out.

Look at the debugobjects hooks. They cover the complete timer life
time already.

Piggypacking tracepoints on those would simplify maintenance and
reduce the number of extra lines in the code.

Thanks,

	tglx
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