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perf evlist: Add perf_evlist__id2evsel_strict() 

perf_evlist__id2evsel_strict() is the same as perf_evlist__id2evsel()
except that it ensures that the id must match.

This will be used by perf inject to find a specific evsel that is to be
deleted, hence the need to match exactly.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1443186956-18718-22-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2015-09-25 16:15:52 +03:00 committed by Arnaldo Carvalho de Melo
parent 3c5b645fae
commit dddcf6abbf
2 changed files with 17 additions and 0 deletions
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15
tools/perf/util/evlist.c
View File

@ -617,6 +617,21 @@ struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id)
return NULL;
}
struct perf_evsel *perf_evlist__id2evsel_strict(struct perf_evlist *evlist,
u64 id)
{
struct perf_sample_id *sid;
if (!id)
return NULL;
sid = perf_evlist__id2sid(evlist, id);
if (sid)
return sid->evsel;
return NULL;
}
static int perf_evlist__event2id(struct perf_evlist *evlist,
union perf_event *event, u64 *id)
{

2
tools/perf/util/evlist.h
View File

@ -104,6 +104,8 @@ int perf_evlist__filter_pollfd(struct perf_evlist *evlist, short revents_and_mas
int perf_evlist__poll(struct perf_evlist *evlist, int timeout);
struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id);
struct perf_evsel *perf_evlist__id2evsel_strict(struct perf_evlist *evlist,
u64 id);
struct perf_sample_id *perf_evlist__id2sid(struct perf_evlist *evlist, u64 id);