linux-kernel - Re: [PATCH 06/25] perf tools: Propagate thread maps through the evlist

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Message-ID: <20150612201359.GB25788@krava.redhat.com>
Date:	Fri, 12 Jun 2015 22:13:59 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Jiri Olsa <jolsa@...nel.org>,
	lkml <linux-kernel@...r.kernel.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Andi Kleen <ak@...ux.intel.com>,
	David Ahern <dsahern@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH 06/25] perf tools: Propagate thread maps through the
 evlist

On Thu, Jun 11, 2015 at 10:07:40PM +0900, Namhyung Kim wrote:
> Hi Jiri,
> 
> On Wed, Jun 10, 2015 at 10:25:13PM +0200, Jiri Olsa wrote:
> > On Wed, Jun 10, 2015 at 04:09:32PM -0300, Arnaldo Carvalho de Melo wrote:
> > > Em Wed, Jun 10, 2015 at 08:10:39PM +0200, Jiri Olsa escreveu:
> > > > Propagate evlist's thread_map object through all the
> > > > evsel objects.
> > > > 
> > > > It'll be handy to access evsel's threads directly
> > > > in following patches.
> > > 
> > > Handy in what way? I.e. I should know one example without having to look
> > > at future patches ;-)
> > 
> > there's no link to evlist which hold threads map now,
> > and it's not always available.. I'll update the changelog
> > in v2
> 
> What about adding a link to evlist in evsel then?

I guess thats possiuble, but we already have it for cpu map in evsel,
so I wanted to stay consistent with thread map.. and it's just pointer
with extra refcnt increased

jirka
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