linux-kernel - Re: [PATCH -tip FIXED] ftrace: add nop tracer

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Message-ID: <c62985530809190430sbdfd4c2l55348653459b7250@mail.gmail.com>
Date:	Fri, 19 Sep 2008 13:30:53 +0200
From:	"Frédéric Weisbecker" <fweisbec@...il.com>
To:	"Ingo Molnar" <mingo@...e.hu>
Cc:	"Steven Noonan" <steven@...inklabs.net>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH -tip FIXED] ftrace: add nop tracer

2008/9/19 Ingo Molnar <mingo@...e.hu>:
>
> * Frédéric Weisbecker <fweisbec@...il.com> wrote:
>
>> It seems we have two "none" tracers now. Why not seeing this nop
>> tracer as an improvment of the current "none tracer" ?
>>
>> As a result the none tracer contained in trace.c could be replaced by
>> this new one as the default tracer. And that's said, that will enable
>> trace_printk by default even when no tracer is selected by the user.
>>
>> What do you think about it?
>
> hmm ... good idea. There are some special properties of the none tracer
> (it inhibits trace output for example), and those should be discontinued
> i guess.
>
>        Ingo
>

Ok. I will prepare a patch to submit this idea.
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