linux-kernel - Re: [patch 05/15] LTTng instrumentation

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Message-ID: <20080709160011.GA10601@Krystal>
Date:	Wed, 9 Jul 2008 12:00:11 -0400
From:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	Peter Zijlstra <peterz@...radead.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Masami Hiramatsu <mhiramat@...hat.com>,
	"Frank Ch. Eigler" <fche@...hat.com>,
	Hideo AOKI <haoki@...hat.com>,
	Takashi Nishiie <t-nishiie@...css.fujitsu.com>,
	Eduard - Gabriel Munteanu <eduard.munteanu@...ux360.ro>
Subject: Re: [patch 05/15] LTTng instrumentation - scheduler (repost)

* Ingo Molnar (mingo@...e.hu) wrote:
> 
> * Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca> wrote:
> 
> > There were 2 rejects when I ported the patch to linux-next. Sorry. 
> > Here is a repost.
> 
> there's still a standing objection (NAK) from Peter Zijstra so none of 
> this can go into linux-next yet i'm afraid.
> 
> 	Ingo

Hi Ingo,

This "tracepoint" infrastructure has been created to answer to Peter's
concerns about trace_mark uglyness. The last comment I had from him when
we discussed the tracepoint idea was "Looking forward to your
proposal..", so I guess it's up to him to decide if tracepoints are
clean enough to live.

I'll submit a revised scheduler instrumentation which turns all
scheduler trace_mark() already in linux-next into tracepoints, with the
same arguments. ftrace will have to be updated accordingly.

Mathieu

-- 
Mathieu Desnoyers
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
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