X-Git-Url: http://git.lttng.org/?p=urcu.git;a=blobdiff_plain;f=tests%2Fregression%2Frcutorture.h;fp=tests%2Fregression%2Frcutorture.h;h=441ff79bf349fa301b60e7ee61935e0caa58aba2;hp=01f64569757c5fb2a39afec2074a482d252501b0;hb=54bb03ca7635d54dee1466ef885084333e40064a;hpb=70a1c7c2646f3cae2e9cd8fc6ff8a75a03df8c7a

diff --git a/tests/regression/rcutorture.h b/tests/regression/rcutorture.h
index 01f6456..441ff79 100644
--- a/tests/regression/rcutorture.h
+++ b/tests/regression/rcutorture.h
@@ -527,6 +527,7 @@ int stresstest(int nreaders)
 	int t;
 	long long *p;
 	long long sum;
+	int ret;
 
 	init_per_thread(n_reads_pt, 0LL);
 	for_each_thread(t) {
@@ -552,11 +553,19 @@ int stresstest(int nreaders)
 	       n_reads, n_updates, n_mberror);
 	rdiag_start();
 	rdiag("rcu_stress_count:");
+	ret = 0;
 	for (i = 0; i <= RCU_STRESS_PIPE_LEN; i++) {
 		sum = 0LL;
 		for_each_thread(t) {
 			sum += per_thread(rcu_stress_count, t)[i];
 		}
+		/*
+		 * If any entries past the first two are non-zero, RCU is
+		 * broken. See details above about rcu_stress_count.
+		 */
+		if (i > 1 && sum != 0) {
+			ret = -1;
+		}
 		rdiag(" %lld", sum);
 	}
 	rdiag_end();
@@ -564,10 +573,9 @@ int stresstest(int nreaders)
 		diag("Deallocating per-CPU call_rcu threads.");
 		free_all_cpu_call_rcu_data();
 	}
-	if (!n_mberror)
-		return 0;
-	else
-		return -1;
+	if (n_mberror)
+		ret = -1;
+	return ret;
 }
 
 /*