linux-kernel - Re: [PATCH 1/2 v2] tracing/ftrace: handle more than one stat file per tracer

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Message-ID: <alpine.DEB.1.10.0901080924460.22642@gandalf.stny.rr.com>
Date:	Thu, 8 Jan 2009 09:24:55 -0500 (EST)
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Frederic Weisbecker <fweisbec@...il.com>
cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [PATCH 1/2 v2] tracing/ftrace: handle more than one stat file
 per tracer


On Thu, 8 Jan 2009, Frederic Weisbecker wrote:

> On Wed, Jan 07, 2009 at 10:50:35PM -0500, Steven Rostedt wrote:
> > 
> > On Wed, 7 Jan 2009, Frederic Weisbecker wrote:
> > 
> > > Impact: new API for tracers
> > > 
> > > Make the stat tracing API reentrant. And also provide the new directory
> > > /debugfs/tracing/trace_stat which will contain all the stat files for the
> > > current active tracer.
> > > 
> > > Now a tracer will, if desired, want to provide a zero terminated array of
> > > tracer_stat structures.
> > > Each one contains the callbacks necessary for one stat file.
> > > It have to provide at least a name for its stat file, an iterator with
> > > stat_start/start_next callback and an output callback for one stat entry.
> > > 
> > > Changes in v2:
> > > 
> > 
> > Hi Frederic,
> > 
> > This patch fails to compile the branch tracer by itself. No patch should 
> > break a build (for bisecting reasons).
> > 
> > -- Steve
> >
> 
> Hmm. Yes, so perhaps I can resend the two patches in one?

Sure.

-- Steve

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