Messages in this thread | | | Date | Wed, 19 Dec 2012 21:34:30 -0800 | From | Greg KH <> | Subject | Re: [PATCH 2/3] perf x86: Add precise sysfs attribute |
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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@redhat.com> > Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> > Cc: Frederic Weisbecker <fweisbec@gmail.com> > Cc: Ingo Molnar <mingo@elte.hu> > Cc: Namhyung Kim <namhyung@kernel.org> > Cc: Paul Mackerras <paulus@samba.org> > Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> > Cc: Arnaldo Carvalho de Melo <acme@redhat.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/
thanks,
greg k-h
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