1 files changed, 19 insertions, 0 deletions

diff --git a/kernel/rcutree.h b/kernel/rcutree.h
index 8db0cdc7f450..d49046c79c59 100644
--- a/kernel/rcutree.h
+++ b/kernel/rcutree.h
@@ -152,6 +152,25 @@ struct rcu_node {
         wait_queue_head_t boost_wq;
                                 /* Wait queue on which to park the boost */
                                 /*  kthread. */
+        unsigned long n_tasks_boosted;
+                                /* Total number of tasks boosted. */
+        unsigned long n_exp_boosts;
+                                /* Number of tasks boosted for expedited GP. */
+        unsigned long n_normal_boosts;
+                                /* Number of tasks boosted for normal GP. */
+        unsigned long n_balk_blkd_tasks;
+                                /* Refused to boost: no blocked tasks. */
+        unsigned long n_balk_exp_gp_tasks;
+                                /* Refused to boost: nothing blocking GP. */
+        unsigned long n_balk_boost_tasks;
+                                /* Refused to boost: already boosting. */
+        unsigned long n_balk_notblocked;
+                                /* Refused to boost: RCU RS CS still running. */
+        unsigned long n_balk_notyet;
+                                /* Refused to boost: not yet time. */
+        unsigned long n_balk_nos;
+                                /* Refused to boost: not sure why, though. */
+                                /*  This can happen due to race conditions. */
 #endif /* #ifdef CONFIG_RCU_BOOST */
         struct task_struct *node_kthread_task;
                                 /* kthread that takes care of this rcu_node */