8330972: Serial: Inline Generation::max_contiguous_available

Reviewed-by: ayang

src/hotspot/share/gc/serial/generation.cpp

@@ -81,13 +81,3 @@ void Generation::print_summary_info_on(outputStream* st) {
  sr->invocations,
  sr->invocations > 0 ? time / sr->invocations : 0.0);
 }
-
-size_t Generation::max_contiguous_available() const {
- // The largest number of contiguous free words in this or any higher generation.
- size_t avail = contiguous_available();
- size_t old_avail = 0;
- if (SerialHeap::heap()->is_young_gen(this)) {
- old_avail = SerialHeap::heap()->old_gen()->contiguous_available();
- }
- return MAX2(avail, old_avail);
-}

src/hotspot/share/gc/serial/generation.hpp

@@ -99,8 +99,6 @@ class Generation: public CHeapObj<mtGC> {
  // The largest number of contiguous free bytes in the generation,
  // including expansion (Assumes called at a safepoint.)
  virtual size_t contiguous_available() const = 0;
- // The largest number of contiguous free bytes in this or any higher generation.
- virtual size_t max_contiguous_available() const;
 
  MemRegion reserved() const { return _reserved; }
 

src/hotspot/share/gc/serial/tenuredGeneration.cpp

@@ -418,7 +418,7 @@ void TenuredGeneration::update_counters() {
 }
 
 bool TenuredGeneration::promotion_attempt_is_safe(size_t max_promotion_in_bytes) const {
- size_t available = max_contiguous_available();
+ size_t available = contiguous_available();
  size_t av_promo = (size_t)_avg_promoted->padded_average();
  bool res = (available >= av_promo) || (available >= max_promotion_in_bytes);