src/share/vm/gc/g1/g1RemSet.cpp

rev 12937 : imported patch 8071280-specialize-heapregion-oops-on-card-seq-iterate
rev 12938 : imported patch 8071280-kim-review

*** 686,698 ****
                                                   worker_i);
    update_rs_oop_cl.set_from(r);
  
    bool card_processed;
    if (_g1->is_gc_active()) {
!     card_processed = r->oops_on_card_seq_iterate_careful<G1UpdateRSOrPushRefOopClosure, true>(dirty_region,                                                                                         &update_rs_oop_cl);
    } else {
!     card_processed = r->oops_on_card_seq_iterate_careful<G1UpdateRSOrPushRefOopClosure, false>(dirty_region,                                                                                      &update_rs_oop_cl);      
    }
  
    // If unable to process the card then we encountered an unparsable
    // part of the heap (e.g. a partially allocated object) while
    // processing a stale card.  Despite the card being stale, redirty
--- 686,698 ----
                                                   worker_i);
    update_rs_oop_cl.set_from(r);
  
    bool card_processed;
    if (_g1->is_gc_active()) {
!     card_processed = r->oops_on_card_seq_iterate_careful<true>(dirty_region, &update_rs_oop_cl);
    } else {
!     card_processed = r->oops_on_card_seq_iterate_careful<false>(dirty_region, &update_rs_oop_cl);      
    }
  
    // If unable to process the card then we encountered an unparsable
    // part of the heap (e.g. a partially allocated object) while
    // processing a stale card.  Despite the card being stale, redirty
*** 723,733 ****
    // a GC worker thread.
    assert(!has_refs_into_cset || SafepointSynchronize::is_at_safepoint(),
           "invalid result at non safepoint");
  
    return has_refs_into_cset;
!   }
  
  void G1RemSet::print_periodic_summary_info(const char* header, uint period_count) {
    if ((G1SummarizeRSetStatsPeriod > 0) && log_is_enabled(Trace, gc, remset) &&
        (period_count % G1SummarizeRSetStatsPeriod == 0)) {
  
--- 723,733 ----
    // a GC worker thread.
    assert(!has_refs_into_cset || SafepointSynchronize::is_at_safepoint(),
           "invalid result at non safepoint");
  
    return has_refs_into_cset;
! }
  
  void G1RemSet::print_periodic_summary_info(const char* header, uint period_count) {
    if ((G1SummarizeRSetStatsPeriod > 0) && log_is_enabled(Trace, gc, remset) &&
        (period_count % G1SummarizeRSetStatsPeriod == 0)) {