Messages in this thread | | | From | Namhyung Kim <> | Subject | Re: [PATCH 18/23] perf tools: Move synthetizing into single function | Date | Fri, 19 Jul 2013 21:30:50 +0900 |
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On Wed, 17 Jul 2013 19:49:58 +0200, Jiri Olsa wrote: > Moving synthetizing into single function, so it
s/synthetizing/synthesizing/
The same goes to the subject line too.
> could be reused. > > Signed-off-by: Jiri Olsa <jolsa@redhat.com> > Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> > Cc: Frederic Weisbecker <fweisbec@gmail.com> > Cc: Ingo Molnar <mingo@elte.hu> > Cc: Namhyung Kim <namhyung@kernel.org> > Cc: Paul Mackerras <paulus@samba.org> > Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> > Cc: Arnaldo Carvalho de Melo <acme@redhat.com> > Cc: Andi Kleen <ak@linux.intel.com> > Cc: David Ahern <dsahern@gmail.com> > --- > tools/perf/builtin-record.c | 155 ++++++++++++++++++++++++++------------------ > 1 file changed, 91 insertions(+), 64 deletions(-) > > diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c > index b67564c..33a5bce 100644 > --- a/tools/perf/builtin-record.c > +++ b/tools/perf/builtin-record.c > @@ -317,6 +317,95 @@ static void perf_event__synthesize_guest_os(struct machine *machine, void *data) > " relocation symbol.\n", machine->pid); > } > > +static int synthesize_record_pipe(struct perf_record *rec) > +{ > + struct perf_session *session = rec->session; > + struct perf_tool *tool = &rec->tool; > + struct perf_evlist *evlist = rec->evlist; > + int err; > + > + err = perf_event__synthesize_attrs(tool, session, > + process_synthesized_event); > + if (err < 0) { > + pr_err("Couldn't synthesize attrs.\n"); > + return err; > + } > + > + if (have_tracepoints(&evlist->entries)) { > + /* > + * FIXME err <= 0 here actually means that > + * there were no tracepoints so its not really > + * an error, just that we don't need to > + * synthesize anything. We really have to > + * return this more properly and also > + * propagate errors that now are calling die() > + */
I believe that this comment is doubly wrong. First we already check whether evlist has tracepoints before calling the below function. Secondly I think I got rid of all of the die() calls from the tracing_data_get/put path.
So I would suggest simply removing this comment block.
Thanks, Namhyung
> + err = perf_event__synthesize_tracing_data(tool, rec->output, evlist, > + process_synthesized_event); > + if (err <= 0) { > + pr_err("Couldn't record tracing data.\n"); > + return err; > + } > + advance_output(rec, err); > + } > + > + return 0; > +}
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