rcu: Distinguish between boosting and boosted

RCU priority boosting's tracing did not distinguish between ongoing
boosting and completion of boosting.  This commit therefore adds this
capability.

Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/kernel/rcutiny_plugin.h b/kernel/rcutiny_plugin.h
index f4e0df082d3c..015abaea962a 100644
--- a/kernel/rcutiny_plugin.h
+++ b/kernel/rcutiny_plugin.h
@@ -229,6 +229,9 @@ static void show_tiny_preempt_stats(struct seq_file *m)
                 seq_puts(m, "no");
                 break;
         case 1:
+                seq_puts(m, "begun");
+                break;
+        case 2:
                 seq_puts(m, "done");
                 break;
         default:
@@ -284,6 +287,7 @@ static int rcu_boost(void)
         raw_local_irq_restore(flags);
         rt_mutex_lock(&mtx);
         RCU_TRACE(rcu_preempt_ctrlblk.n_tasks_boosted++);
+        rcu_preempt_ctrlblk.boosted_this_gp++;
         rt_mutex_unlock(&mtx);
         return rcu_preempt_ctrlblk.boost_tasks != NULL;
 }