288 default:
289 report_illegal_transition("uncommiting");
290 }
291 }
292
293 void ShenandoahHeapRegion::make_committed_bypass() {
294 _heap->assert_heaplock_owned_by_current_thread();
295 assert (_heap->is_full_gc_in_progress(), "only for full GC");
296
297 switch (_state) {
298 case _empty_uncommitted:
299 do_commit();
300 set_state(_empty_committed);
301 return;
302 default:
303 report_illegal_transition("commit bypass");
304 }
305 }
306
307 void ShenandoahHeapRegion::clear_live_data() {
308 Atomic::release_store_fence<size_t>(&_live_data, 0);
309 }
310
311 void ShenandoahHeapRegion::reset_alloc_metadata() {
312 _tlab_allocs = 0;
313 _gclab_allocs = 0;
314 _shared_allocs = 0;
315 _seqnum_first_alloc_mutator = 0;
316 _seqnum_last_alloc_mutator = 0;
317 _seqnum_first_alloc_gc = 0;
318 _seqnum_last_alloc_gc = 0;
319 }
320
321 void ShenandoahHeapRegion::reset_alloc_metadata_to_shared() {
322 if (used() > 0) {
323 _tlab_allocs = 0;
324 _gclab_allocs = 0;
325 _shared_allocs = used() >> LogHeapWordSize;
326 uint64_t next = _alloc_seq_num.value++;
327 _seqnum_first_alloc_mutator = next;
328 _seqnum_last_alloc_mutator = next;
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288 default:
289 report_illegal_transition("uncommiting");
290 }
291 }
292
293 void ShenandoahHeapRegion::make_committed_bypass() {
294 _heap->assert_heaplock_owned_by_current_thread();
295 assert (_heap->is_full_gc_in_progress(), "only for full GC");
296
297 switch (_state) {
298 case _empty_uncommitted:
299 do_commit();
300 set_state(_empty_committed);
301 return;
302 default:
303 report_illegal_transition("commit bypass");
304 }
305 }
306
307 void ShenandoahHeapRegion::clear_live_data() {
308 Atomic::release_store_fence(&_live_data, (size_t)0);
309 }
310
311 void ShenandoahHeapRegion::reset_alloc_metadata() {
312 _tlab_allocs = 0;
313 _gclab_allocs = 0;
314 _shared_allocs = 0;
315 _seqnum_first_alloc_mutator = 0;
316 _seqnum_last_alloc_mutator = 0;
317 _seqnum_first_alloc_gc = 0;
318 _seqnum_last_alloc_gc = 0;
319 }
320
321 void ShenandoahHeapRegion::reset_alloc_metadata_to_shared() {
322 if (used() > 0) {
323 _tlab_allocs = 0;
324 _gclab_allocs = 0;
325 _shared_allocs = used() >> LogHeapWordSize;
326 uint64_t next = _alloc_seq_num.value++;
327 _seqnum_first_alloc_mutator = next;
328 _seqnum_last_alloc_mutator = next;
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