1 files changed, 8 insertions, 0 deletions

diff --git a/kernel/rcutree.h b/kernel/rcutree.h
index 5a439c180e69..c0213802d164 100644
--- a/kernel/rcutree.h
+++ b/kernel/rcutree.h
@@ -111,6 +111,7 @@ struct rcu_node {
                                 /*  elements that need to drain to allow the */
                                 /*  current expedited grace period to */
                                 /*  complete (only for TREE_PREEMPT_RCU). */
+        unsigned long wakemask; /* CPUs whose kthread needs to be awakened. */
         unsigned long qsmaskinit;
                                 /* Per-GP initial value for qsmask & expmask. */
         unsigned long grpmask;  /* Mask to apply to parent qsmask. */
@@ -134,6 +135,13 @@ struct rcu_node {
                                 /*  if there is no such task.  If there */
                                 /*  is no current expedited grace period, */
                                 /*  then there can cannot be any such task. */
+        struct task_struct *node_kthread_task;
+                                /* kthread that takes care of this rcu_node */
+                                /*  structure, for example, awakening the */
+                                /*  per-CPU kthreads as needed. */
+        wait_queue_head_t node_wq;
+                                /* Wait queue on which to park the per-node */
+                                /*  kthread. */
 } ____cacheline_internodealigned_in_smp;
 
 /*