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Date: Mon, 19 Apr 2010 15:30:53 -0700
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Subject: Re: [PATCH 3/3] Stop tracing on a schedule bug
From: Chase Douglas <chase.douglas@canonical.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>, linux-kernel@vger.kernel.org,
       Steven Rostedt <rostedt@goodmis.org>, Ingo Molnar <mingo@elte.hu>,
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> 2) tracing off can be done via filters on functions and/or events
>   already - so I doubt that the tracing_off_event(level) is necessary
>   at all.

I just found what you were meaning here, since there's no
documentation yet about the traceon/traceoff filter command. This
would do exactly what we want for helping us fix bugs.

I'll write some info about the command in ftrace.txt and send a patch
for review so no one else is left out of the party :).

-- Chase