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perf evlist: Propagate cpu maps to evsels in an evlist

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Propagate evlist's cpu_map object through all the evsel objects, while
keeping already configured evsel->cpus.

It'll be handy to access evsel's cpus directly in following patches.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1435012588-9007-6-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2015-06-23 00:36:06 +02:00 committed by Arnaldo Carvalho de Melo
parent 186fbb7432
commit b7f0c20358
1 changed files with 24 additions and 1 deletions
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25
tools/perf/util/evlist.c
View file

@ -1101,6 +1101,29 @@ int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
return perf_evlist__mmap_ex(evlist, pages, overwrite, 0, false);
}
static int perf_evlist__propagate_maps(struct perf_evlist *evlist,
struct target *target)
{
struct perf_evsel *evsel;
evlist__for_each(evlist, evsel) {
/*
* We already have cpus for evsel (via PMU sysfs) so
* keep it, if there's no target cpu list defined.
*/
if (evsel->cpus && target->cpu_list)
cpu_map__put(evsel->cpus);
if (!evsel->cpus || target->cpu_list)
evsel->cpus = cpu_map__get(evlist->cpus);
if (!evsel->cpus)
return -ENOMEM;
}
return 0;
}
int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target)
{
evlist->threads = thread_map__new_str(target->pid, target->tid,
@ -1117,7 +1140,7 @@ int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target)
if (evlist->cpus == NULL)
goto out_delete_threads;
return 0;
return perf_evlist__propagate_maps(evlist, target);
out_delete_threads:
thread_map__put(evlist->threads);