[PATCH 6/8] perf bench futex: Use a 64-bit operation counter in hash and lock-pi

[Michal Pluta]

The per-thread operation counters in 'futex hash' and 'futex lock-pi'
are unsigned longs, which could overflow on 32-bit systems. Use u64
instead.

Assisted-by: LLM
Signed-off-by: Michal Pluta <michalpl2003@xxxxxxxxx>
---
 tools/perf/bench/futex-hash.c    | 6 +++---
 tools/perf/bench/futex-lock-pi.c | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/tools/perf/bench/futex-hash.c b/tools/perf/bench/futex-hash.c
index 710c253cfe17..e18d98664d27 100644
--- a/tools/perf/bench/futex-hash.c
+++ b/tools/perf/bench/futex-hash.c
@@ -46,7 +46,7 @@ struct worker {
 	int tid;
 	u_int32_t *futex;
 	pthread_t thread;
-	unsigned long ops;
+	u64 ops;
 };
 
 static struct bench_futex_parameters params = {
@@ -76,7 +76,7 @@ static void *workerfn(void *arg)
 	int ret;
 	struct worker *w = (struct worker *) arg;
 	unsigned int i;
-	unsigned long ops = w->ops; /* avoid cacheline bouncing */
+	u64 ops = w->ops; /* avoid cacheline bouncing */
 
 	mutex_lock(&thread_lock);
 	threads_starting--;
@@ -238,7 +238,7 @@ int bench_futex_hash(int argc, const char **argv)
 
 	for (i = 0; i < params.nthreads; i++) {
 		unsigned long t = runtime_us ?
-			(u64)worker[i].ops * USEC_PER_SEC / runtime_us : 0;
+			worker[i].ops * USEC_PER_SEC / runtime_us : 0;
 		update_stats(&throughput_stats, t);
 		if (!params.silent) {
 			if (params.nfutexes == 1)
diff --git a/tools/perf/bench/futex-lock-pi.c b/tools/perf/bench/futex-lock-pi.c
index 7190f5102e09..8016a31b198d 100644
--- a/tools/perf/bench/futex-lock-pi.c
+++ b/tools/perf/bench/futex-lock-pi.c
@@ -29,7 +29,7 @@ struct worker {
 	int tid;
 	u_int32_t *futex;
 	pthread_t thread;
-	unsigned long ops;
+	u64 ops;
 };
 
 static u_int32_t global_futex = 0;
@@ -86,7 +86,7 @@ static void toggle_done(int sig __maybe_unused,
 static void *workerfn(void *arg)
 {
 	struct worker *w = (struct worker *) arg;
-	unsigned long ops = w->ops;
+	u64 ops = w->ops;
 
 	mutex_lock(&thread_lock);
 	threads_starting--;
@@ -239,7 +239,7 @@ int bench_futex_lock_pi(int argc, const char **argv)
 
 	for (i = 0; i < params.nthreads; i++) {
 		unsigned long t = runtime_us ?
-			(u64)worker[i].ops * USEC_PER_SEC / runtime_us : 0;
+			worker[i].ops * USEC_PER_SEC / runtime_us : 0;
 
 		update_stats(&throughput_stats, t);
 		if (!params.silent)
-- 
2.43.0