diff --git a/tools/perf/tests/openat-syscall-all-cpus.c b/tools/perf/tests/openat-syscall-all-cpus.c
index 8726511..9cf1c35 100644
--- a/tools/perf/tests/openat-syscall-all-cpus.c
+++ b/tools/perf/tests/openat-syscall-all-cpus.c
@@ -115,7 +115,7 @@
 
 	perf_evsel__free_counts(evsel);
 out_close_fd:
-	perf_evsel__close_fd(evsel, 1, threads->nr);
+	perf_evsel__close_fd(evsel);
 out_evsel_delete:
 	perf_evsel__delete(evsel);
 out_thread_map_delete:
diff --git a/tools/perf/tests/openat-syscall.c b/tools/perf/tests/openat-syscall.c
index 85bb672..9dc5c5d 100644
--- a/tools/perf/tests/openat-syscall.c
+++ b/tools/perf/tests/openat-syscall.c
@@ -56,7 +56,7 @@
 
 	err = 0;
 out_close_fd:
-	perf_evsel__close_fd(evsel, 1, threads->nr);
+	perf_evsel__close_fd(evsel);
 out_evsel_delete:
 	perf_evsel__delete(evsel);
 out_thread_map_delete:
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 078b585..6a0d7ff 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1419,8 +1419,6 @@
 {
 	struct perf_evsel *evsel;
 	int err = 0;
-	const int ncpus = cpu_map__nr(evlist->cpus),
-		  nthreads = thread_map__nr(evlist->threads);
 
 	evlist__for_each_entry(evlist, evsel) {
 		if (evsel->filter == NULL)
@@ -1430,7 +1428,7 @@
 		 * filters only work for tracepoint event, which doesn't have cpu limit.
 		 * So evlist and evsel should always be same.
 		 */
-		err = perf_evsel__apply_filter(evsel, ncpus, nthreads, evsel->filter);
+		err = perf_evsel__apply_filter(evsel, evsel->filter);
 		if (err) {
 			*err_evsel = evsel;
 			break;
@@ -1623,13 +1621,9 @@
 void perf_evlist__close(struct perf_evlist *evlist)
 {
 	struct perf_evsel *evsel;
-	int ncpus = cpu_map__nr(evlist->cpus);
-	int nthreads = thread_map__nr(evlist->threads);
 
-	evlist__for_each_entry_reverse(evlist, evsel) {
-		int n = evsel->cpus ? evsel->cpus->nr : ncpus;
-		perf_evsel__close(evsel, n, nthreads);
-	}
+	evlist__for_each_entry_reverse(evlist, evsel)
+		perf_evsel__close(evsel);
 }
 
 static int perf_evlist__create_syswide_maps(struct perf_evlist *evlist)
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 3735c9e..5dfb8bc 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1051,16 +1051,13 @@
 	return evsel->fd != NULL ? 0 : -ENOMEM;
 }
 
-static int perf_evsel__run_ioctl(struct perf_evsel *evsel, int ncpus, int nthreads,
+static int perf_evsel__run_ioctl(struct perf_evsel *evsel,
 			  int ioc,  void *arg)
 {
 	int cpu, thread;
 
-	if (evsel->system_wide)
-		nthreads = 1;
-
-	for (cpu = 0; cpu < ncpus; cpu++) {
-		for (thread = 0; thread < nthreads; thread++) {
+	for (cpu = 0; cpu < xyarray__max_x(evsel->fd); cpu++) {
+		for (thread = 0; thread < xyarray__max_y(evsel->fd); thread++) {
 			int fd = FD(evsel, cpu, thread),
 			    err = ioctl(fd, ioc, arg);
 
@@ -1072,10 +1069,9 @@
 	return 0;
 }
 
-int perf_evsel__apply_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
-			     const char *filter)
+int perf_evsel__apply_filter(struct perf_evsel *evsel, const char *filter)
 {
-	return perf_evsel__run_ioctl(evsel, ncpus, nthreads,
+	return perf_evsel__run_ioctl(evsel,
 				     PERF_EVENT_IOC_SET_FILTER,
 				     (void *)filter);
 }
@@ -1122,20 +1118,14 @@
 
 int perf_evsel__enable(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,
+	return perf_evsel__run_ioctl(evsel,
 				     PERF_EVENT_IOC_ENABLE,
 				     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,
+	return perf_evsel__run_ioctl(evsel,
 				     PERF_EVENT_IOC_DISABLE,
 				     0);
 }
@@ -1185,15 +1175,12 @@
 	}
 }
 
-void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
+void perf_evsel__close_fd(struct perf_evsel *evsel)
 {
 	int cpu, thread;
 
-	if (evsel->system_wide)
-		nthreads = 1;
-
-	for (cpu = 0; cpu < ncpus; cpu++)
-		for (thread = 0; thread < nthreads; ++thread) {
+	for (cpu = 0; cpu < xyarray__max_x(evsel->fd); cpu++)
+		for (thread = 0; thread < xyarray__max_y(evsel->fd); ++thread) {
 			close(FD(evsel, cpu, thread));
 			FD(evsel, cpu, thread) = -1;
 		}
@@ -1854,12 +1841,12 @@
 	return err;
 }
 
-void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads)
+void perf_evsel__close(struct perf_evsel *evsel)
 {
 	if (evsel->fd == NULL)
 		return;
 
-	perf_evsel__close_fd(evsel, ncpus, nthreads);
+	perf_evsel__close_fd(evsel);
 	perf_evsel__free_fd(evsel);
 }
 
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index de03c18..351d3b2 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -226,7 +226,7 @@
 int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size);
 
 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
-void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
+void perf_evsel__close_fd(struct perf_evsel *evsel);
 
 void __perf_evsel__set_sample_bit(struct perf_evsel *evsel,
 				  enum perf_event_sample_format bit);
@@ -246,8 +246,7 @@
 int perf_evsel__append_tp_filter(struct perf_evsel *evsel, const char *filter);
 int perf_evsel__append_addr_filter(struct perf_evsel *evsel,
 				   const char *filter);
-int perf_evsel__apply_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
-			     const char *filter);
+int perf_evsel__apply_filter(struct perf_evsel *evsel, const char *filter);
 int perf_evsel__enable(struct perf_evsel *evsel);
 int perf_evsel__disable(struct perf_evsel *evsel);
 
@@ -257,7 +256,7 @@
 				struct thread_map *threads);
 int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
 		     struct thread_map *threads);
-void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads);
+void perf_evsel__close(struct perf_evsel *evsel);
 
 struct perf_sample;