linux-kernel - Re: [RFC][PATCH 2/2] [PATCH 2/2] tracing: Make event based trace

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Message-ID: <20101118115812.GA27474@Krystal>
Date:	Thu, 18 Nov 2010 06:58:12 -0500
From:	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Darren Hart <dvhart@...ux.intel.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"jason.wessel" <jason.wessel@...driver.com>,
	Ted Ts'o <tytso@....edu>
Subject: Re: [RFC][PATCH 2/2] [PATCH 2/2] tracing: Make event based
	trace_printk()

* Steven Rostedt (rostedt@...dmis.org) wrote:
> From: Steven Rostedt <srostedt@...hat.com>
> 
> Add the trace_printk() that places the usage in the
> /debug/tracing/events/printk directory.
> 
> Adding a trace_printk() into sched.c at line 2181, we have:

I'm curious: how do you handle two trace_printk on the same line ?

It might be OK to let the interface activate both at once, but nothing should
crash per se.

Thanks,

Mathieu

-- 
Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.
http://www.efficios.com
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