src/hotspot/share/memory/metaspace.cpp

*** 160,170 ****
    }
  
    if (can_retry != NULL) {
      *can_retry = true;
    }
!   size_t prev_value = Atomic::cmpxchg(new_value, &_capacity_until_GC, old_capacity_until_GC);
  
    if (old_capacity_until_GC != prev_value) {
      return false;
    }
  
--- 160,170 ----
    }
  
    if (can_retry != NULL) {
      *can_retry = true;
    }
!   size_t prev_value = Atomic::cmpxchg(&_capacity_until_GC, old_capacity_until_GC, new_value);
  
    if (old_capacity_until_GC != prev_value) {
      return false;
    }
  
*** 178,188 ****
  }
  
  size_t MetaspaceGC::dec_capacity_until_GC(size_t v) {
    assert_is_aligned(v, Metaspace::commit_alignment());
  
!   return Atomic::sub(v, &_capacity_until_GC);
  }
  
  void MetaspaceGC::initialize() {
    // Set the high-water mark to MaxMetapaceSize during VM initializaton since
    // we can't do a GC during initialization.
--- 178,188 ----
  }
  
  size_t MetaspaceGC::dec_capacity_until_GC(size_t v) {
    assert_is_aligned(v, Metaspace::commit_alignment());
  
!   return Atomic::sub(&_capacity_until_GC, v);
  }
  
  void MetaspaceGC::initialize() {
    // Set the high-water mark to MaxMetapaceSize during VM initializaton since
    // we can't do a GC during initialization.
*** 392,410 ****
           size_now, words);
    *pstat = size_now - words;
  }
  
  static void inc_stat_atomically(volatile size_t* pstat, size_t words) {
!   Atomic::add(words, pstat);
  }
  
  static void dec_stat_atomically(volatile size_t* pstat, size_t words) {
    const size_t size_now = *pstat;
    assert(size_now >= words, "About to decrement counter below zero "
           "(current value: " SIZE_FORMAT ", decrement value: " SIZE_FORMAT ".",
           size_now, words);
!   Atomic::sub(words, pstat);
  }
  
  void MetaspaceUtils::dec_capacity(Metaspace::MetadataType mdtype, size_t words) {
    dec_stat_nonatomically(&_capacity_words[mdtype], words);
  }
--- 392,410 ----
           size_now, words);
    *pstat = size_now - words;
  }
  
  static void inc_stat_atomically(volatile size_t* pstat, size_t words) {
!   Atomic::add(pstat, words);
  }
  
  static void dec_stat_atomically(volatile size_t* pstat, size_t words) {
    const size_t size_now = *pstat;
    assert(size_now >= words, "About to decrement counter below zero "
           "(current value: " SIZE_FORMAT ", decrement value: " SIZE_FORMAT ".",
           size_now, words);
!   Atomic::sub(pstat, words);
  }
  
  void MetaspaceUtils::dec_capacity(Metaspace::MetadataType mdtype, size_t words) {
    dec_stat_nonatomically(&_capacity_words[mdtype], words);
  }