src/hotspot/share/code/dependencyContext.cpp

*** 33,44 ****
  
  PerfCounter* DependencyContext::_perf_total_buckets_allocated_count   = NULL;
  PerfCounter* DependencyContext::_perf_total_buckets_deallocated_count = NULL;
  PerfCounter* DependencyContext::_perf_total_buckets_stale_count       = NULL;
  PerfCounter* DependencyContext::_perf_total_buckets_stale_acc_count   = NULL;
! nmethodBucket* volatile DependencyContext::_purge_list = NULL;
! volatile uint64_t DependencyContext::_cleaning_epoch = 0;
  
  void dependencyContext_init() {
    DependencyContext::init();
  }
  
--- 33,45 ----
  
  PerfCounter* DependencyContext::_perf_total_buckets_allocated_count   = NULL;
  PerfCounter* DependencyContext::_perf_total_buckets_deallocated_count = NULL;
  PerfCounter* DependencyContext::_perf_total_buckets_stale_count       = NULL;
  PerfCounter* DependencyContext::_perf_total_buckets_stale_acc_count   = NULL;
! nmethodBucket* volatile DependencyContext::_purge_list                = NULL;
! volatile uint64_t DependencyContext::_cleaning_epoch                  = 0;
! uint64_t  DependencyContext::_cleaning_epoch_monotonic                = 0;
  
  void dependencyContext_init() {
    DependencyContext::init();
  }
  
***************
*** 309,319 ****
  // After the gc_prologue, the dependency contexts may be claimed by the GC
  // and releasing of nmethodBucket entries will be deferred and placed on
  // a purge list to be deleted later.
  void DependencyContext::cleaning_start() {
    assert(SafepointSynchronize::is_at_safepoint(), "must be");
!   uint64_t epoch = SafepointSynchronize::safepoint_counter();
    Atomic::store(epoch, &_cleaning_epoch);
  }
  
  // The epilogue marks the end of dependency context cleanup by the GC,
  // and also makes subsequent releases of nmethodBuckets case immediate
--- 310,320 ----
  // After the gc_prologue, the dependency contexts may be claimed by the GC
  // and releasing of nmethodBucket entries will be deferred and placed on
  // a purge list to be deleted later.
  void DependencyContext::cleaning_start() {
    assert(SafepointSynchronize::is_at_safepoint(), "must be");
!   uint64_t epoch = ++_cleaning_epoch_monotonic;
    Atomic::store(epoch, &_cleaning_epoch);
  }
  
  // The epilogue marks the end of dependency context cleanup by the GC,
  // and also makes subsequent releases of nmethodBuckets case immediate