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perf evsel: Introduce disable() method

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Adding perf_evsel__disable function to have complement for
perf_evsel__enable function. Both will be used in following patch to
factor perf_evlist__(enable|disable).

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1449133606-14429-3-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2015-12-03 10:06:41 +01:00 committed by Arnaldo Carvalho de Melo
parent 5cd95fc3f8
commit e98a4cbb01
2 changed files with 11 additions and 0 deletions
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10
tools/perf/util/evsel.c
View File

@ -991,6 +991,16 @@ int perf_evsel__enable(struct perf_evsel *evsel)
0);
}
int perf_evsel__disable(struct perf_evsel *evsel)
{
int nthreads = thread_map__nr(evsel->threads);
int ncpus = cpu_map__nr(evsel->cpus);
return perf_evsel__run_ioctl(evsel, ncpus, nthreads,
PERF_EVENT_IOC_DISABLE,
0);
}
int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads)
{
if (ncpus == 0 || nthreads == 0)

1
tools/perf/util/evsel.h
View File

@ -228,6 +228,7 @@ int perf_evsel__append_filter(struct perf_evsel *evsel,
int perf_evsel__apply_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
const char *filter);
int perf_evsel__enable(struct perf_evsel *evsel);
int perf_evsel__disable(struct perf_evsel *evsel);
int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
struct cpu_map *cpus);