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| author | Jiri Olsa <jolsa@kernel.org> | 2015-06-23 00:36:06 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-06-25 20:15:51 +0200 |
| commit | b7f0c203586b91419ff9aa9b1115e261082ff5b4 (patch) | |
| tree | d9733ff295a7b4ef1e898e60052b45b1be4b5ac6 /tools | |
| parent | perf tools: Add reference counting for thread_map object (diff) | |
| download | linux-b7f0c203586b91419ff9aa9b1115e261082ff5b4.tar.xz linux-b7f0c203586b91419ff9aa9b1115e261082ff5b4.zip | |
perf evlist: Propagate cpu maps to evsels in an evlist
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>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/evlist.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index a8d18a3d2164..214affaf1cf6 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -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); |