linux-kernel - Re: [PATCH] perf tools: Move precise_ip detection into perf_evsel_

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Message-ID: <20190315140545.GG24002@tassilo.jf.intel.com>
Date:   Fri, 15 Mar 2019 07:05:45 -0700
From:   Andi Kleen <ak@...ux.intel.com>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     Jiri Olsa <jolsa@...nel.org>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        lkml <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Jonas Rabenstein <jonas.rabenstein@...dium.uni-erlangen.de>,
        Nageswara R Sastry <nasastry@...ibm.com>,
        Ravi Bangoria <ravi.bangoria@...ux.ibm.com>
Subject: Re: [PATCH] perf tools: Move precise_ip detection into
 perf_evsel__open

On Fri, Mar 15, 2019 at 01:15:46PM +0100, Jiri Olsa wrote:
> On Thu, Mar 14, 2019 at 08:49:11AM -0700, Andi Kleen wrote:
> > > > Still seems like a hack. Even though I don't know of a case that
> > > > would break now. But it would be better to have the precise probing
> > > > in the open retry loop, instead of trying to reinvent it here.
> > > 
> > > how about something like below?
> > 
> > Yes looks reasonable.
> 
> full patch attached,

Acked-by: Andi Kleen <ak@...ux.intel.com>

-Andi