scftorture: Count single_rpc offline failures in statistics outputgrafted

scf_torture_stats_print() aggregates each invoker thread's counters
into a local scf_statistics structure before printing, but the
n_single_rpc_ofl field is missing from the aggregation loop.  As a
result, the "single_rpc_ofl" value printed in the statistics line is
always zero, even when smp_call_function_single() invocations for the
RPC test have failed due to offline CPUs and been counted by the
invoker threads.

Add the missing accumulation so that the printed value reflects the
actual counts.

Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

1 files changed, 73 insertions, 0 deletions

diff --git a/tools/perf/util/bpf-event.h b/tools/perf/util/bpf-event.h
new file mode 100644
index 000000000..da4eeb4a1
--- /dev/null
+++ b/tools/perf/util/bpf-event.h
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __PERF_BPF_EVENT_H
+#define __PERF_BPF_EVENT_H
+
+#include <linux/compiler.h>
+#include <linux/rbtree.h>
+#include <api/fd/array.h>
+#include <stdio.h>
+
+struct bpf_prog_info;
+struct machine;
+union perf_event;
+struct perf_env;
+struct perf_sample;
+struct perf_session;
+struct record_opts;
+struct evlist;
+struct target;
+
+struct bpf_metadata {
+	union perf_event *event;
+	char		 **prog_names;
+	__u64		 nr_prog_names;
+};
+
+struct bpf_prog_info_node {
+	struct perf_bpil		*info_linear;
+	struct bpf_metadata		*metadata;
+	struct rb_node			rb_node;
+};
+
+struct btf_node {
+	struct rb_node	rb_node;
+	u32		id;
+	u32		data_size;
+	char		data[];
+};
+
+#ifdef HAVE_LIBBPF_SUPPORT
+int machine__process_bpf(struct machine *machine, union perf_event *event,
+			 struct perf_sample *sample);
+int evlist__add_bpf_sb_event(struct evlist *evlist, struct perf_env *env);
+void __bpf_event__print_bpf_prog_info(struct perf_bpil *info_linear,
+				      struct perf_env *env,
+				      FILE *fp);
+void bpf_metadata_free(struct bpf_metadata *metadata);
+#else
+static inline int machine__process_bpf(struct machine *machine __maybe_unused,
+				       union perf_event *event __maybe_unused,
+				       struct perf_sample *sample __maybe_unused)
+{
+	return 0;
+}
+
+static inline int evlist__add_bpf_sb_event(struct evlist *evlist __maybe_unused,
+					   struct perf_env *env __maybe_unused)
+{
+	return 0;
+}
+
+static inline void __bpf_event__print_bpf_prog_info(struct perf_bpil *info_linear __maybe_unused,
+						    struct perf_env *env __maybe_unused,
+						    FILE *fp __maybe_unused)
+{
+
+}
+
+static inline void bpf_metadata_free(struct bpf_metadata *metadata __maybe_unused)
+{
+
+}
+#endif // HAVE_LIBBPF_SUPPORT
+#endif