linux-kernel - Re: [PATCH 2/3] perf x86: Add precise sysfs attribute

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Message-ID: <20121220102706.GA1241@krava.brq.redhat.com>
Date:	Thu, 20 Dec 2012 11:27:06 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Greg KH <gregkh@...uxfoundation.org>
Cc:	linux-kernel@...r.kernel.org,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	Namhyung Kim <namhyung@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: Re: [PATCH 2/3] perf x86: Add precise sysfs attribute

On Wed, Dec 19, 2012 at 09:34:30PM -0800, Greg KH wrote:
> On Wed, Dec 19, 2012 at 04:07:21PM +0100, Jiri Olsa wrote:
> > Adding sysfs precise attribute for cpu device (/sys/devices/cpu)
> > to show the maximum value for perf event precise attribute.
> > 
> > This will be initialy used for automated precise event perf test
> > and could be helpful otherwise. Arnaldo suggested to use this as
> > a guide for default adding of precise attribute for HW events.
> > 
> > Signed-off-by: Jiri Olsa <jolsa@...hat.com>
> > Cc: Corey Ashford <cjashfor@...ux.vnet.ibm.com>
> > Cc: Frederic Weisbecker <fweisbec@...il.com>
> > Cc: Ingo Molnar <mingo@...e.hu>
> > Cc: Namhyung Kim <namhyung@...nel.org>
> > Cc: Paul Mackerras <paulus@...ba.org>
> > Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
> > Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
> > ---
> >  arch/x86/kernel/cpu/perf_event.c | 34 +++++++++++++++++++++++++---------
> >  1 file changed, 25 insertions(+), 9 deletions(-)
> 
> As you are adding a new sysfs file, you must also document it with an
> entry in Documentation/ABI/

will do, thanks
jirka
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