610 CollectorPolicy* cp = gch->collector_policy();
611
612 FastScanClosure fsc_with_no_gc_barrier(this, false);
613 FastScanClosure fsc_with_gc_barrier(this, true);
614
615 KlassScanClosure klass_scan_closure(&fsc_with_no_gc_barrier,
616 gch->rem_set()->klass_rem_set());
617 CLDToKlassAndOopClosure cld_scan_closure(&klass_scan_closure,
618 &fsc_with_no_gc_barrier,
619 false);
620
621 set_promo_failure_scan_stack_closure(&fsc_with_no_gc_barrier);
622 FastEvacuateFollowersClosure evacuate_followers(gch, _level, this,
623 &fsc_with_no_gc_barrier,
624 &fsc_with_gc_barrier);
625
626 assert(gch->no_allocs_since_save_marks(0),
627 "save marks have not been newly set.");
628
629 {
630 // SerialGC runs with n_workers == 0.
631 StrongRootsScope srs(0);
632
633 gch->gen_process_roots(&srs,
634 _level,
635 true, // Process younger gens, if any,
636 // as strong roots.
637 GenCollectedHeap::SO_ScavengeCodeCache,
638 GenCollectedHeap::StrongAndWeakRoots,
639 &fsc_with_no_gc_barrier,
640 &fsc_with_gc_barrier,
641 &cld_scan_closure);
642 }
643
644 // "evacuate followers".
645 evacuate_followers.do_void();
646
647 FastKeepAliveClosure keep_alive(this, &scan_weak_ref);
648 ReferenceProcessor* rp = ref_processor();
649 rp->setup_policy(clear_all_soft_refs);
650 const ReferenceProcessorStats& stats =
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610 CollectorPolicy* cp = gch->collector_policy();
611
612 FastScanClosure fsc_with_no_gc_barrier(this, false);
613 FastScanClosure fsc_with_gc_barrier(this, true);
614
615 KlassScanClosure klass_scan_closure(&fsc_with_no_gc_barrier,
616 gch->rem_set()->klass_rem_set());
617 CLDToKlassAndOopClosure cld_scan_closure(&klass_scan_closure,
618 &fsc_with_no_gc_barrier,
619 false);
620
621 set_promo_failure_scan_stack_closure(&fsc_with_no_gc_barrier);
622 FastEvacuateFollowersClosure evacuate_followers(gch, _level, this,
623 &fsc_with_no_gc_barrier,
624 &fsc_with_gc_barrier);
625
626 assert(gch->no_allocs_since_save_marks(0),
627 "save marks have not been newly set.");
628
629 {
630 // DefNew needs to run with n_threads == 0, to make sure the serial
631 // version of the card table scanning code is used.
632 // See: CardTableModRefBS::non_clean_card_iterate_possibly_parallel.
633 StrongRootsScope srs(0);
634
635 gch->gen_process_roots(&srs,
636 _level,
637 true, // Process younger gens, if any,
638 // as strong roots.
639 GenCollectedHeap::SO_ScavengeCodeCache,
640 GenCollectedHeap::StrongAndWeakRoots,
641 &fsc_with_no_gc_barrier,
642 &fsc_with_gc_barrier,
643 &cld_scan_closure);
644 }
645
646 // "evacuate followers".
647 evacuate_followers.do_void();
648
649 FastKeepAliveClosure keep_alive(this, &scan_weak_ref);
650 ReferenceProcessor* rp = ref_processor();
651 rp->setup_policy(clear_all_soft_refs);
652 const ReferenceProcessorStats& stats =
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