src/share/vm/memory/cardTableRS.hpp

rev 7318 : 8064721: The card tables only ever need two covering regions

*** 81,91 ****
    // always have the value "clean_card".)
    jbyte* _last_cur_val_in_gen;
  
    jbyte _cur_youngergen_card_val;
  
!   int _regions_to_iterate;
  
    jbyte cur_youngergen_card_val() {
      return _cur_youngergen_card_val;
    }
    void set_cur_youngergen_card_val(jbyte v) {
--- 81,92 ----
    // always have the value "clean_card".)
    jbyte* _last_cur_val_in_gen;
  
    jbyte _cur_youngergen_card_val;
  
!   // Number of generations (including permgen).
!   static const int _regions_to_iterate = 3;
  
    jbyte cur_youngergen_card_val() {
      return _cur_youngergen_card_val;
    }
    void set_cur_youngergen_card_val(jbyte v) {
*** 99,109 ****
    }
    // Return a youngergen_card_value that is not currently in use.
    jbyte find_unused_youngergenP_card_value();
  
  public:
!   CardTableRS(MemRegion whole_heap, int max_covered_regions);
    ~CardTableRS();
  
    // *** GenRemSet functions.
    CardTableRS* as_CardTableRS() { return this; }
  
--- 100,110 ----
    }
    // Return a youngergen_card_value that is not currently in use.
    jbyte find_unused_youngergenP_card_value();
  
  public:
!   CardTableRS(MemRegion whole_heap);
    ~CardTableRS();
  
    // *** GenRemSet functions.
    CardTableRS* as_CardTableRS() { return this; }