linux-kernel - Re: [PATCH 2/7] ftrace: Add enable/disable ftrace

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Message-ID: <1326766055.7642.181.camel@gandalf.stny.rr.com>
Date:	Mon, 16 Jan 2012 21:07:35 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	Jiri Olsa <jolsa@...hat.com>, mingo@...hat.com, paulus@...ba.org,
	acme@...stprotocols.net, a.p.zijlstra@...llo.nl,
	linux-kernel@...r.kernel.org, aarapov@...hat.com
Subject: Re: [PATCH 2/7] ftrace: Add enable/disable ftrace_ops control
 interface

On Tue, 2012-01-17 at 02:42 +0100, Frederic Weisbecker wrote:
>  
> > diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
> > index 523640f..0d43a2b 100644
> > --- a/include/linux/ftrace.h
> > +++ b/include/linux/ftrace.h
> > @@ -35,12 +35,14 @@ enum {
> >  	FTRACE_OPS_FL_ENABLED		= 1 << 0,
> >  	FTRACE_OPS_FL_GLOBAL		= 1 << 1,
> >  	FTRACE_OPS_FL_DYNAMIC		= 1 << 2,
> > +	FTRACE_OPS_FL_CONTROL		= 1 << 3,
> 
> Please comment the role of this flag. In fact it would be nice to have
> a comment that explains all these. GLOBAL and DYNAMIC don't actually give
> much clues alone.

Someone else asked about commenting these (was it you?). I probably
should, as it is confusing to what they are used for.

I just figured every just figures it out by looking at the code ;-)

-- Steve


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