linux-kernel - Re: [PATCH 04/13] perf env: Introduce read_cpu_topology

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Date:	Thu, 10 Sep 2015 17:12:40 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	"Liang, Kan" <kan.liang@...el.com>
Cc:	Ingo Molnar <mingo@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Hunter, Adrian" <adrian.hunter@...el.com>,
	Borislav Petkov <bp@...e.de>, David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Jiri Olsa <jolsa@...hat.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Stephane Eranian <eranian@...gle.com>,
	Wang Nan <wangnan0@...wei.com>
Subject: Re: [PATCH 04/13] perf env: Introduce read_cpu_topology_map() method

Em Thu, Sep 10, 2015 at 08:00:54PM +0000, Liang, Kan escreveu:
> > Em Wed, Sep 09, 2015 at 09:41:18PM +0000, Liang, Kan escreveu:
> > > > -	for (i = 0; i < tp->cpu_nr; i++) {
> > > > -		ret = do_write(fd, &tp->core_id[i], sizeof(int));
> > > > +	perf_env__read_cpu_topology_map(&perf_env);
> > > > +

> > > I think we need to handle error here.

> > Ok, adding a test, updated patch below. While doing that, noticed that the
> > in the thread_sib case the "ret = do_something()" doesn't makes the
> > whole function fail, will fix later.

> Except patch 11 & 13 (for reverting), the rest of patches are good to me.

Ok, so, to take it more formally, can I turn this "good to me" as
justification for adding "Acked-by: Kan Liang", to those patches?

Please take a look at the other patches in the perf/env branch, I did it
while trying to figure it out if the reverts should be kept.

- Arnaldo
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