--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -402,7 +402,7 @@
 		WRITE_ONCE(current->rcu_read_unlock_special.b.need_qs, true);
 	barrier();  /* critical section after entry code. */
 }
-EXPORT_SYMBOL_GPL(__rcu_read_lock);
+EXPORT_SYMBOL(__rcu_read_lock); //nvidia_gpl
 
 /*
  * Preemptible RCU implementation for rcu_read_unlock().
@@ -427,7 +427,7 @@
 		WARN_ON_ONCE(rrln < 0 || rrln > RCU_NEST_PMAX);
 	}
 }
-EXPORT_SYMBOL_GPL(__rcu_read_unlock);
+EXPORT_SYMBOL(__rcu_read_unlock); //nvidia_gpl
 
 /*
  * Advance a ->blkd_tasks-list pointer to the next entry, instead
@@ -822,7 +822,7 @@
 	rcu_report_qs_rdp(rdp);
 	udelay(rcu_unlock_delay);
 }
-EXPORT_SYMBOL_GPL(rcu_read_unlock_strict);
+EXPORT_SYMBOL(rcu_read_unlock_strict); //nvidia_gpl
 
 /*
  * Tell them what RCU they are running.
@@ -881,7 +881,7 @@
 	rcu_qs();
 	preempt_enable();
 }
-EXPORT_SYMBOL_GPL(rcu_all_qs);
+EXPORT_SYMBOL(rcu_all_qs); //nvidia_gpl
 
 /*
  * Note a PREEMPTION=n context switch. The caller must have disabled interrupts.
@@ -900,7 +900,7 @@
 out:
 	trace_rcu_utilization(TPS("End context switch"));
 }
-EXPORT_SYMBOL_GPL(rcu_note_context_switch);
+EXPORT_SYMBOL(rcu_note_context_switch); //nvidia_gpl
 
 /*
  * Because preemptible RCU does not exist, there are never any preempted