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

From: Jiri Olsa
Date: Thu Dec 20 2012 - 05:28:59 EST


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@xxxxxxxxxx>
> > Cc: Corey Ashford <cjashfor@xxxxxxxxxxxxxxxxxx>
> > Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
> > Cc: Ingo Molnar <mingo@xxxxxxx>
> > Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
> > Cc: Paul Mackerras <paulus@xxxxxxxxx>
> > Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
> > Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
> > ---
> > 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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