src/hotspot/os/linux/os_linux.hpp

@@ -54,10 +54,12 @@
   static bool _supports_fast_thread_cpu_time;
 
   static GrowableArray<int>* _cpu_to_node;
   static GrowableArray<int>* _nindex_to_node;
 
+  static size_t _default_large_page_size;
+
  protected:
 
   static julong _physical_memory;
   static pthread_t _main_thread;
   static int _page_size;

@@ -79,11 +81,13 @@
   static void rebuild_cpu_to_node_map();
   static void rebuild_nindex_to_node_map();
   static GrowableArray<int>* cpu_to_node()    { return _cpu_to_node; }
   static GrowableArray<int>* nindex_to_node()  { return _nindex_to_node; }
 
-  static size_t find_large_page_size();
+  static size_t default_large_page_size();
+  static size_t find_default_large_page_size();
+  static bool is_valid_large_page_size(size_t page_size);
   static size_t setup_large_page_size();
 
   static bool setup_large_page_type(size_t page_size);
   static bool transparent_huge_pages_sanity_check(bool warn, size_t pages_size);
   static bool hugetlbfs_sanity_check(bool warn, size_t page_size);