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Date: Sun, 8 Mar 2009 12:26:33 +0900
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Subject: Re: [PATCH for tip] ftrace: remove latency_trace document
From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>, Steven Rostedt <srostedt@redhat.com>,
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2009/3/8 Frederic Weisbecker <fweisbec@gmail.com>:
> On Sat, Mar 07, 2009 at 11:53:40PM +0900, KOSAKI Motohiro wrote:
>> Subject: [PATCH] remove latency_trace document
>>
>> Currently, there aren't "Latency tracer" and latency_trace file.
>> Then, its documentation is removed too.
>
> Hi,
>
> The latency_trace file has been removed but the latency tracing stil exists.
> It has become an option instead of a file now:
>
> echo latency-format > /debugfs/tracing/trace_options
>
> There are even some tracers that default enable it (irqsoff, preemptoff...)
> IMO, the documentation about latency tracing shouldn't be removed but
> just updated a bit to reflect this change.

Ah, sorry.
I totally misunderstood it.

thanks to correct my fault.