diff --git a/mm/percpu.c b/mm/percpu.c
index 5457a2c9c250..18d08095b356 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -3448,6 +3448,7 @@ unsigned long pcpu_nr_pages(void)
 {
 	return pcpu_nr_populated * pcpu_nr_units;
 }
+EXPORT_SYMBOL_GPL(pcpu_nr_pages);
 
 /*
  * Percpu allocator is initialized early during boot when neither slab or