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, 40 insertions, 0 deletions

diff --git a/rust/helpers/time.c b/rust/helpers/time.c
new file mode 100644
index 000000000..32f495970
--- /dev/null
+++ b/rust/helpers/time.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/delay.h>
+#include <linux/ktime.h>
+#include <linux/timekeeping.h>
+
+__rust_helper void rust_helper_fsleep(unsigned long usecs)
+{
+	fsleep(usecs);
+}
+
+__rust_helper ktime_t rust_helper_ktime_get_real(void)
+{
+	return ktime_get_real();
+}
+
+__rust_helper ktime_t rust_helper_ktime_get_boottime(void)
+{
+	return ktime_get_boottime();
+}
+
+__rust_helper ktime_t rust_helper_ktime_get_clocktai(void)
+{
+	return ktime_get_clocktai();
+}
+
+__rust_helper s64 rust_helper_ktime_to_us(const ktime_t kt)
+{
+	return ktime_to_us(kt);
+}
+
+__rust_helper s64 rust_helper_ktime_to_ms(const ktime_t kt)
+{
+	return ktime_to_ms(kt);
+}
+
+__rust_helper void rust_helper_udelay(unsigned long usec)
+{
+	udelay(usec);
+}