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>
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@ -1223,6 +1223,9 @@ int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter)
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int err = 0;
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evlist__for_each(evlist, evsel) {
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if (evsel->attr.type != PERF_TYPE_TRACEPOINT)
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continue;
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err = perf_evsel__set_filter(evsel, filter);
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if (err)
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break;
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