1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/context_tracking_state.h b/include/linux/context_tracking_state.h
index 5a8da2787287..13a4a9d1ec7e 100644
--- a/include/linux/context_tracking_state.h
+++ b/include/linux/context_tracking_state.h
@@ -27,6 +27,7 @@ struct context_tracking {
 #endif
 #ifdef CONFIG_CONTEXT_TRACKING_IDLE
 	atomic_t dynticks;		/* Even value for idle, else odd. */
+	long dynticks_nesting;		/* Track process nesting level. */
 #endif
 };
 
@@ -53,6 +54,18 @@ static __always_inline int ct_dynticks_cpu_acquire(int cpu)
 
 	return atomic_read_acquire(&ct->dynticks);
 }
+
+static __always_inline long ct_dynticks_nesting(void)
+{
+	return __this_cpu_read(context_tracking.dynticks_nesting);
+}
+
+static __always_inline long ct_dynticks_nesting_cpu(int cpu)
+{
+	struct context_tracking *ct = per_cpu_ptr(&context_tracking, cpu);
+
+	return ct->dynticks_nesting;
+}
 #endif /* #ifdef CONFIG_CONTEXT_TRACKING_IDLE */
 
 #ifdef CONFIG_CONTEXT_TRACKING_USER