rcu: Make rcutorture emit online failures if verbose

[platform/adaptation/renesas_rcar/renesas_kernel.git] / kernel / rcutorture.c

diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index e3a1244..be63101 100644 (file)
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -797,7 +797,6 @@ rcu_torture_writer(void *arg)
 {
        bool exp;
        int i;
-       long oldbatch = rcu_batches_completed();
        struct rcu_torture *rp;
        struct rcu_torture *rp1;
        struct rcu_torture *old_rp;
@@ -851,7 +850,6 @@ rcu_torture_writer(void *arg)
                        }
                }
                rcutorture_record_progress(++rcu_torture_current_version);
-               oldbatch = cur_ops->completed();
                rcu_stutter_wait("rcu_torture_writer");
        } while (!kthread_should_stop() && fullstop == FULLSTOP_DONTSTOP);
        VERBOSE_PRINTK_STRING("rcu_torture_writer task stopping");
@@ -1436,7 +1434,13 @@ rcu_torture_onoff(void *arg)
                                         torture_type, cpu);
                        starttime = jiffies;
                        n_online_attempts++;
-                       if (cpu_up(cpu) == 0) {
+                       ret = cpu_up(cpu);
+                       if (ret) {
+                               if (verbose)
+                                       pr_alert("%s" TORTURE_FLAG
+                                                "rcu_torture_onoff task: online %d failed: errno %d\n",
+                                                torture_type, cpu, ret);
+                       } else {
                                if (verbose)
                                        pr_alert("%s" TORTURE_FLAG
                                                 "rcu_torture_onoff task: onlined %d\n",