void G1PrepareCompactClosure::free_humongous_region(HeapRegion* hr) {
HeapWord* end = hr->end();
FreeRegionList dummy_free_list("Dummy Free List for G1MarkSweep");
hr->set_containing_set(NULL);
_humongous_regions_removed++;
_g1h->free_humongous_region(hr, &dummy_free_list, false /* skip_remset */);
prepare_for_compaction(hr, end);
dummy_free_list.remove_all();
}
void G1PrepareCompactClosure::free_humongous_region(HeapRegion* hr) {
HeapWord* end = hr->end();
FreeRegionList dummy_free_list("Dummy Free List for G1MarkSweep");
assert(hr->is_starts_humongous(),
"Only the start of a humongous region should be freed.");
hr->set_containing_set(NULL);
_humongous_regions_removed.increment(1u, hr->capacity());
_g1h->free_humongous_region(hr, &dummy_free_list, false /* par */);
prepare_for_compaction(hr, end);
dummy_free_list.remove_all();
}
void free_humongous_region(HeapRegion* hr) {
HeapWord* end = hr->end();
size_t dummy_pre_used;
FreeRegionList dummy_free_list("Dummy Free List for G1MarkSweep");
assert(hr->startsHumongous(),
"Only the start of a humongous region should be freed.");
_g1h->free_humongous_region(hr, &dummy_pre_used, &dummy_free_list,
&_humongous_proxy_set, false /* par */);
hr->prepare_for_compaction(&_cp);
// Also clear the part of the card table that will be unused after
// compaction.
_mrbs->clear(MemRegion(hr->compaction_top(), end));
dummy_free_list.remove_all();
}