linux-kernel - Re: [PATCH v4 04/10] perf stat: factor out event handling loop into a function

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Message-ID: <47d1cde8-5bc9-cdd3-6f04-b9c5a659f736@linux.intel.com>
Date:   Mon, 1 Jun 2020 19:10:35 +0300
From:   Alexey Budankov <alexey.budankov@...ux.intel.com>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Andi Kleen <ak@...ux.intel.com>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 04/10] perf stat: factor out event handling loop into a
 function


On 01.06.2020 10:38, Alexey Budankov wrote:
> 
> On 31.05.2020 21:19, Jiri Olsa wrote:
>> On Mon, May 25, 2020 at 05:19:45PM +0300, Alexey Budankov wrote:
>>
>> SNIP
>>
>>> @@ -544,12 +598,10 @@ static enum counter_recovery stat_handle_error(struct evsel *counter)
<SNIP>
>>>  static int __run_perf_stat(int argc, const char **argv, int run_idx)
>>> +		dispatch_events(-1, &stat_config);
>>
>> hum, from the discussion we had on v3  I expected more smaller patches
>> with easy changes, so the change is more transparent and easy to review
>>
>> as I said before this part really makes me worried and needs to be as clear
>> as possible.. please introdce the new function first and replace the factored
>> places separately, also more verbose changelog would help ;-)
> 
> Ok. Will try to reshape the patch that way.

Please see v5.
It puts this refactoring part into several smaller consecutive changes to make
review and possible bisecting activity easier. Let me know if some other parts
of the patch set also require similar breakdown.

~Alexey