diff --git a/mm/filemap.c b/mm/filemap.c
index 44da3d476994..7624c26fcea6 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -981,6 +981,7 @@ int file_read_actor(read_descriptor_t *desc, struct page *page,
 	desc->arg.buf += size;
 	return size;
 }
+EXPORT_SYMBOL(file_read_actor);
 
 /*
  * This is the "read()" routine for all filesystems