linux-kernel - Re: [PATCH 2/7] perf auxtrace: Prevent decoding when --no-itrace

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Date:   Tue, 6 Mar 2018 16:21:32 +0200
From:   Adrian Hunter <adrian.hunter@...el.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Jiri Olsa <jolsa@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/7] perf auxtrace: Prevent decoding when --no-itrace

On 06/03/18 16:06, Arnaldo Carvalho de Melo wrote:
> Em Tue, Mar 06, 2018 at 11:13:13AM +0200, Adrian Hunter escreveu:
>> Prevent auxtrace_queues__process_index() from queuing AUX area data for
>> decoding when the --no-itrace option has been used.
> 
> So I'm putting this one both on perf/urgent and on perf/core, the rest
> just on perf/core, ok?

Yes, thank you!

Have you got this one also:

	https://marc.info/?l=linux-kernel&m=151980982703990

> 
> - Arnaldo
>  
>> Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
>> ---
>>  tools/perf/util/auxtrace.c | 15 +++++++++------
>>  1 file changed, 9 insertions(+), 6 deletions(-)
>>
>> diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
>> index 9faf3b5367db..6470ea2aa25e 100644
>> --- a/tools/perf/util/auxtrace.c
>> +++ b/tools/perf/util/auxtrace.c
>> @@ -60,6 +60,12 @@
>>  #include "sane_ctype.h"
>>  #include "symbol/kallsyms.h"
>>  
>> +static bool auxtrace__dont_decode(struct perf_session *session)
>> +{
>> +	return !session->itrace_synth_opts ||
>> +	       session->itrace_synth_opts->dont_decode;
>> +}
>> +
>>  int auxtrace_mmap__mmap(struct auxtrace_mmap *mm,
>>  			struct auxtrace_mmap_params *mp,
>>  			void *userpg, int fd)
>> @@ -762,6 +768,9 @@ int auxtrace_queues__process_index(struct auxtrace_queues *queues,
>>  	size_t i;
>>  	int err;
>>  
>> +	if (auxtrace__dont_decode(session))
>> +		return 0;
>> +
>>  	list_for_each_entry(auxtrace_index, &session->auxtrace_index, list) {
>>  		for (i = 0; i < auxtrace_index->nr; i++) {
>>  			ent = &auxtrace_index->entries[i];
>> @@ -892,12 +901,6 @@ int perf_event__synthesize_auxtrace_info(struct auxtrace_record *itr,
>>  	return err;
>>  }
>>  
>> -static bool auxtrace__dont_decode(struct perf_session *session)
>> -{
>> -	return !session->itrace_synth_opts ||
>> -	       session->itrace_synth_opts->dont_decode;
>> -}
>> -
>>  int perf_event__process_auxtrace_info(struct perf_tool *tool __maybe_unused,
>>  				      union perf_event *event,
>>  				      struct perf_session *session)
>> -- 
>> 1.9.1
>