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Diffstat (limited to 'tools/perf/bench/futex-lock-pi.c')
-rw-r--r--tools/perf/bench/futex-lock-pi.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/tools/perf/bench/futex-lock-pi.c b/tools/perf/bench/futex-lock-pi.c
index 936d89d30483..465012b320ee 100644
--- a/tools/perf/bench/futex-lock-pi.c
+++ b/tools/perf/bench/futex-lock-pi.c
@@ -75,6 +75,7 @@ static void toggle_done(int sig __maybe_unused,
static void *workerfn(void *arg)
{
struct worker *w = (struct worker *) arg;
+ unsigned long ops = w->ops;
pthread_mutex_lock(&thread_lock);
threads_starting--;
@@ -103,9 +104,10 @@ static void *workerfn(void *arg)
if (ret && !silent)
warn("thread %d: Could not unlock pi-lock for %p (%d)",
w->tid, w->futex, ret);
- w->ops++; /* account for thread's share of work */
+ ops++; /* account for thread's share of work */
} while (!done);
+ w->ops = ops;
return NULL;
}
@@ -150,6 +152,7 @@ int bench_futex_lock_pi(int argc, const char **argv,
goto err;
ncpus = sysconf(_SC_NPROCESSORS_ONLN);
+ nsecs = futexbench_sanitize_numeric(nsecs);
sigfillset(&act.sa_mask);
act.sa_sigaction = toggle_done;
@@ -157,6 +160,8 @@ int bench_futex_lock_pi(int argc, const char **argv,
if (!nthreads)
nthreads = ncpus;
+ else
+ nthreads = futexbench_sanitize_numeric(nthreads);
worker = calloc(nthreads, sizeof(*worker));
if (!worker)