diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index 341ca666bc60..ce6af1ee2cac 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -396,6 +396,11 @@ pv_queue:
 
 	node += idx;
 
+	/*
+	 * Keep counts of non-zero index values:
+	 */
+	qstat_inc(qstat_lock_idx1 + idx - 1, idx);
+
 	/*
 	 * Ensure that we increment the head node->count before initialising
 	 * the actual node. If the compiler is kind enough to reorder these
diff --git a/kernel/locking/qspinlock_stat.h b/kernel/locking/qspinlock_stat.h
index 6bd78c0740fc..42d3d8dc8f49 100644
--- a/kernel/locking/qspinlock_stat.h
+++ b/kernel/locking/qspinlock_stat.h
@@ -55,6 +55,9 @@ enum qlock_stats {
 	qstat_pv_wait_node,
 	qstat_lock_pending,
 	qstat_lock_slowpath,
+	qstat_lock_idx1,
+	qstat_lock_idx2,
+	qstat_lock_idx3,
 	qstat_num,	/* Total number of statistical counters */
 	qstat_reset_cnts = qstat_num,
 };
@@ -82,6 +85,9 @@ static const char * const qstat_names[qstat_num + 1] = {
 	[qstat_pv_wait_node]       = "pv_wait_node",
 	[qstat_lock_pending]       = "lock_pending",
 	[qstat_lock_slowpath]      = "lock_slowpath",
+	[qstat_lock_idx1]	   = "lock_index1",
+	[qstat_lock_idx2]	   = "lock_index2",
+	[qstat_lock_idx3]	   = "lock_index3",
 	[qstat_reset_cnts]         = "reset_counters",
 };