[tip:perf/core] perf evlist: Add has_user_cpus member

tip-bot for Adrian Hunter
2015-09-16T07:32:16Z

Commit-ID: ec9a77a7e3346a05b1287597982d0dd09dd1c3bd
Gitweb: http://git.kernel.org/tip/ec9a77a7e3346a05b1287597982d0dd09dd1c3bd
Author: Adrian Hunter <adrian.hunter@intel.com>
AuthorDate: Tue, 8 Sep 2015 10:58:52 +0300
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 15 Sep 2015 10:20:50 -0300

perf evlist: Add has_user_cpus member

Subsequent patches will need to call perf_evlist__propagate_maps without
reference to a "target". Add evlist->has_user_cpus to record whether
the user has specified which cpus to target (and therefore whether that
list of cpus should override the default settings for a selected event
i.e. the cpu maps should be propagated)

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@intel.com>
Link: http://lkml.kernel.org/r/1441699142-18905-5-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/evlist.c | 11 ++++++-----
tools/perf/util/evlist.h | 1 +
2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 785bfd3..3a4445f 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1103,8 +1103,7 @@ int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
return perf_evlist__mmap_ex(evlist, pages, overwrite, 0, false);
}

-static void perf_evlist__propagate_maps(struct perf_evlist *evlist,
- bool has_user_cpus)
+static void perf_evlist__propagate_maps(struct perf_evlist *evlist)
{
struct perf_evsel *evsel;

@@ -1113,7 +1112,7 @@ static void perf_evlist__propagate_maps(struct perf_evlist *evlist,
* We already have cpus for evsel (via PMU sysfs) so
* keep it, if there's no target cpu list defined.
*/
- if (!evsel->cpus || has_user_cpus) {
+ if (!evsel->cpus || evlist->has_user_cpus) {
cpu_map__put(evsel->cpus);
evsel->cpus = cpu_map__get(evlist->cpus);
}
@@ -1138,7 +1137,9 @@ int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target)
if (evlist->cpus == NULL)
goto out_delete_threads;

- perf_evlist__propagate_maps(evlist, !!target->cpu_list);
+ evlist->has_user_cpus = !!target->cpu_list;
+
+ perf_evlist__propagate_maps(evlist);

return 0;

@@ -1157,7 +1158,7 @@ void perf_evlist__set_maps(struct perf_evlist *evlist, struct cpu_map *cpus,
thread_map__put(evlist->threads);
evlist->threads = threads;

- perf_evlist__propagate_maps(evlist, false);
+ perf_evlist__propagate_maps(evlist);
}

int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **err_evsel)
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index da2fa91..cfc4df6 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -42,6 +42,7 @@ struct perf_evlist {
int nr_mmaps;
bool overwrite;
bool enabled;
+ bool has_user_cpus;
size_t mmap_len;
int id_pos;
int is_pos;