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authorArnaldo Carvalho de Melo <acme@redhat.com>2012-09-26 15:07:39 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-09-26 15:08:43 -0300
commit745cefc5fba4350243bcb63cd6f75fb47ca77725 (patch)
tree19fe0919c5d7efcd948e280b96c47c5da9cb91f7
parent1491a63218d0fd764e7fab13aa6b82164bfc14d6 (diff)
downloadlinux-linaro-stable-745cefc5fba4350243bcb63cd6f75fb47ca77725.tar.gz
perf evlist: Introduce set_filter() method
To apply a filter to all the evsels in an evlist. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/util/evlist.c43
-rw-r--r--tools/perf/util/evlist.h2
-rw-r--r--tools/perf/util/evsel.c18
-rw-r--r--tools/perf/util/evsel.h3
4 files changed, 48 insertions, 18 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index c3ec7878985b..ae89686102f4 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -668,30 +668,37 @@ void perf_evlist__delete_maps(struct perf_evlist *evlist)
int perf_evlist__apply_filters(struct perf_evlist *evlist)
{
- const struct thread_map *threads = evlist->threads;
- const struct cpu_map *cpus = evlist->cpus;
struct perf_evsel *evsel;
- char *filter;
- int thread;
- int cpu;
- int err;
- int fd;
+ int err = 0;
+ const int ncpus = cpu_map__nr(evlist->cpus),
+ nthreads = evlist->threads->nr;
list_for_each_entry(evsel, &evlist->entries, node) {
- filter = evsel->filter;
- if (!filter)
+ if (evsel->filter == NULL)
continue;
- for (cpu = 0; cpu < cpus->nr; cpu++) {
- for (thread = 0; thread < threads->nr; thread++) {
- fd = FD(evsel, cpu, thread);
- err = ioctl(fd, PERF_EVENT_IOC_SET_FILTER, filter);
- if (err)
- return err;
- }
- }
+
+ err = perf_evsel__set_filter(evsel, ncpus, nthreads, evsel->filter);
+ if (err)
+ break;
}
- return 0;
+ return err;
+}
+
+int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter)
+{
+ struct perf_evsel *evsel;
+ int err = 0;
+ const int ncpus = cpu_map__nr(evlist->cpus),
+ nthreads = evlist->threads->nr;
+
+ list_for_each_entry(evsel, &evlist->entries, node) {
+ err = perf_evsel__set_filter(evsel, ncpus, nthreads, filter);
+ if (err)
+ break;
+ }
+
+ return err;
}
bool perf_evlist__valid_sample_type(struct perf_evlist *evlist)
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 25e49e02810a..3f1fb66be022 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -72,6 +72,8 @@ int perf_evlist__set_tracepoints_handlers(struct perf_evlist *evlist,
#define perf_evlist__set_tracepoints_handlers_array(evlist, array) \
perf_evlist__set_tracepoints_handlers(evlist, array, ARRAY_SIZE(array))
+int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter);
+
struct perf_evsel *
perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id);
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index c78e42ab9770..6022daaa7417 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -505,6 +505,24 @@ int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
return evsel->fd != NULL ? 0 : -ENOMEM;
}
+int perf_evsel__set_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
+ const char *filter)
+{
+ int cpu, thread;
+
+ for (cpu = 0; cpu < ncpus; cpu++) {
+ for (thread = 0; thread < nthreads; thread++) {
+ int fd = FD(evsel, cpu, thread),
+ err = ioctl(fd, PERF_EVENT_IOC_SET_FILTER, filter);
+
+ if (err)
+ return err;
+ }
+ }
+
+ return 0;
+}
+
int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads)
{
evsel->sample_id = xyarray__new(ncpus, nthreads, sizeof(struct perf_sample_id));
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 60d28853748e..25043ff17fd7 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -115,6 +115,9 @@ void perf_evsel__free_fd(struct perf_evsel *evsel);
void perf_evsel__free_id(struct perf_evsel *evsel);
void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
+int perf_evsel__set_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
+ const char *filter);
+
int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
struct cpu_map *cpus);
int perf_evsel__open_per_thread(struct perf_evsel *evsel,