[tip:perf/core] perf tools: Only set filter for tracepoints events

tip-bot for Wang Nan
2016-02-27T09:45:44Z

Commit-ID: fdf14720fbd02d406ac2c1c50444774b4c7eed9a
Gitweb: http://git.kernel.org/tip/fdf14720fbd02d406ac2c1c50444774b4c7eed9a
Author: Wang Nan <wangnan0@huawei.com>
AuthorDate: Fri, 26 Feb 2016 09:31:53 +0000
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Fri, 26 Feb 2016 19:50:01 -0300

perf tools: Only set filter for tracepoints events

perf_evlist__set_filter() tries to set filter to every evsel linked in
the evlist. However, since filters can only be applied to tracepoints,
checking type of evsel before calling perf_evsel__set_filter() would be
better.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1456479154-136027-6-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/evlist.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index c42e196..86a0383 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1223,6 +1223,9 @@ int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter)
int err = 0;

evlist__for_each(evlist, evsel) {
+ if (evsel->attr.type != PERF_TYPE_TRACEPOINT)
+ continue;
+
err = perf_evsel__set_filter(evsel, filter);
if (err)
break;