linux-kernel - Re: [PATCH 5/7] perf tools: Introduce perf_target_

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Message-ID: <20120508131731.GH2485@infradead.org>
Date:	Tue, 8 May 2012 10:17:31 -0300
From:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
To:	Namhyung Kim <namhyung.kim@....com>
Cc:	David Ahern <dsahern@...il.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 5/7] perf tools: Introduce perf_target__strerror()

Em Tue, May 08, 2012 at 10:57:12AM +0900, Namhyung Kim escreveu:
> On Mon, 07 May 2012 11:43:09 -0600, David Ahern wrote:
> > On 5/7/12 11:29 AM, Arnaldo Carvalho de Melo wrote:
> >> So what is missing in this case is that top starts with system_wide set,
> >> not from the command line.
> >>
> > Seems like we should avoid the propagation of the errnos beyond the
> > depths of the library part. For perf-top why not default to nothing
> > set and if the user does not request one, set system wide. i.e,
> > following Patch 6 in this set do:
> >
> > if (perf_target__none(&top.target)
> >     top.target.system_wide = true;
> >
> 
> Thanks for catching this (and sorry for not testing thoroughly).
> 
> Yes, this would make more sense if it goes to the patch 1. Now I see
> that Arnaldo fixed it on patch 1 but forgot to update on patch 6 :).

Oh, I see, adding a follow up patch using the __none method, my case
wasn't checking cpu_list, so this is not just a simple helper
replacement but a bug fix.

- Arnaldo
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