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author | Jiri Olsa <jolsa@redhat.com> | 2012-10-11 14:10:35 +0200 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-08-07 17:35:21 -0300 |
commit | 932a35940a3f03613796ab4855ecbb214dbdc0c2 (patch) | |
tree | cc8ad74e0063f2afd511799c6564984fe903b486 /tools/perf/util/evlist.c | |
parent | c4861afe30aa3b00c95f9389f24cf6ede88416e4 (diff) | |
download | blackbird-op-linux-932a35940a3f03613796ab4855ecbb214dbdc0c2.tar.gz blackbird-op-linux-932a35940a3f03613796ab4855ecbb214dbdc0c2.zip |
perf evlist: Add perf_evlist__id2sid method to get event ID related data
This will be helpful for PERF_FORMAT_GROUP samples where we need to
store ID related period value for each event.
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-twmlgsbyim97p7cyohjwb1df@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/evlist.c')
-rw-r--r-- | tools/perf/util/evlist.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 10fcc0372aa9..da2dd92d5b27 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -337,21 +337,32 @@ static int perf_evlist__id_add_fd(struct perf_evlist *evlist, return 0; } -struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id) +struct perf_sample_id *perf_evlist__id2sid(struct perf_evlist *evlist, u64 id) { struct hlist_head *head; struct perf_sample_id *sid; int hash; - if (evlist->nr_entries == 1) - return perf_evlist__first(evlist); - hash = hash_64(id, PERF_EVLIST__HLIST_BITS); head = &evlist->heads[hash]; hlist_for_each_entry(sid, head, node) if (sid->id == id) - return sid->evsel; + return sid; + + return NULL; +} + +struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id) +{ + struct perf_sample_id *sid; + + if (evlist->nr_entries == 1) + return perf_evlist__first(evlist); + + sid = perf_evlist__id2sid(evlist, id); + if (sid) + return sid->evsel; if (!perf_evlist__sample_id_all(evlist)) return perf_evlist__first(evlist); |