Re: [RFC/PATCH] perf: Expand definition of sysfs format attribute

From: Jiri Olsa
Date: Mon May 06 2013 - 07:37:45 EST


On Mon, May 06, 2013 at 05:20:08AM -0300, Arnaldo Carvalho de Melo wrote:
> Em Mon, May 06, 2013 at 11:08:30AM +1000, Michael Ellerman escreveu:
> > On Mon, Apr 08, 2013 at 05:24:22PM +1000, Michael Ellerman wrote:
> > > On Mon, Mar 04, 2013 at 03:21:05PM +1100, Michael Ellerman wrote:
> > > > Make it explicit that the format attributes may define overlapping bit
> > > > ranges. Unfortunately this was left unspecified originally, and all the
> > > > examples show non-overlapping ranges. I don't believe this is an ABI
> > > > change, as we are defining something that was previously undefined, but
> > > > others may disagree.
> > > >
> > > > The POWER8 PMU would like to define overlapping ranges, as bit ranges in
> > > > the event code have different meanings for certain events. It will also
> > > > allow us to define an overarching "event" field, that encompasses all
> > > > others.
> > > >
> > > > As far as I can see perf is comfortable with this change, however I am
> > > > not sure if there are any other users of the interface.
> > >
> > > Any comments on this one?
>
> > I think the consensus from Peter and Jiri was that this was OK, are you
> > happy to merge it?
>
> I'll do it eventually, but now I'm on vacations, so perhaps Jiri can
> process it and push to Ingo? Jiri?

ok, I'll try to do this soon ;)

jirka
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