Subject: Re: [PATCH v4] ftrace: document basic ftracer/ftracer graph needs
From: Steven Rostedt <rostedt@goodmis.org>
Reply-To: rostedt@goodmis.org
To: Mike Frysinger <vapier.adi@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>, linux-kernel@vger.kernel.org
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Organization: Kihon Technologies Inc.
Date: Mon, 14 Sep 2009 17:20:59 -0400
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On Mon, 2009-09-14 at 17:01 -0400, Mike Frysinger wrote:
> On Mon, Sep 14, 2009 at 16:53, Steven Rostedt wrote:
> > On Mon, 2009-09-14 at 16:21 -0400, Mike Frysinger wrote:
> >> On Mon, Sep 14, 2009 at 15:48, Steven Rostedt wrote:
> >> > On Sat, 2009-06-13 at 23:05 -0400, Mike Frysinger wrote:
> >> >> diff --git a/Documentation/trace/ftrace.txt b/Documentation/trace/ftrace.txt
> >> >> index fd9a3e6..95a39fb 100644
> >> >> --- a/Documentation/trace/ftrace.txt
> >> >> +++ b/Documentation/trace/ftrace.txt
> >> >> @@ -27,6 +27,12 @@ disabled, and more (ftrace allows for tracer plugins, which
> >> >>  means that the list of tracers can always grow).
> >> >>
> >> >>
> >> >> +Implementation Details
> >> >> +----------------------
> >> >> +
> >> >> +See ftrace-implementation.txt for details for arch porters and such.
> >> >
> >> > Might want to specify that this is for the function tracer.
> >>
> >> well, all of ftrace.txt says "function tracer", so if/when someone
> >> cleans that up, this will get fixed in the process.
> >
> > Well things do need to be clean up, the original code had the function
> > tracer called ftrace, which it no longer does. Why add more incorrect
> > documentation just to match the previous incorrect documentation?
> 
> if the filename is updated, do i really need to duplicate it ?
> 
> See function-tracer-design.txt for details for arch porters and such.
> 
> if people add other design/porting info, this can be a simple list and
> the filename itself can imply the details contained within ...

Fine, then rename it to ftrace-design.txt (this corresponds to other
docs in Documentation, like lockdep-design.txt and rt-mutex-design.txt)

Then in the file, start it with "Function tracer implementation" or
something similar.


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