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8260208: Improve dummy object filling condition in G1CollectedHeap::fill_archive_regions in cds

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Reviewed-by: tschatzl, iklam
This commit is contained in:
Hamlin Li 2021-01-25 01:06:33 +00:00
parent c52c6c66db
commit 4ae39b1481
1 changed files with 2 additions and 1 deletions
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src/hotspot/share/gc/g1/g1CollectedHeap.cpp
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@ -705,7 +705,8 @@ void G1CollectedHeap::fill_archive_regions(MemRegion* ranges, size_t count) {
// Fill the memory below the allocated range with dummy object(s), // Fill the memory below the allocated range with dummy object(s),
// if the region bottom does not match the range start, or if the previous // if the region bottom does not match the range start, or if the previous
// range ended within the same G1 region, and there is a gap. // range ended within the same G1 region, and there is a gap.
if (start_address != bottom_address) { assert(start_address >= bottom_address, "bottom address should not be greater than start address");
if (start_address > bottom_address) {
size_t fill_size = pointer_delta(start_address, bottom_address); size_t fill_size = pointer_delta(start_address, bottom_address);
G1CollectedHeap::fill_with_objects(bottom_address, fill_size); G1CollectedHeap::fill_with_objects(bottom_address, fill_size);
increase_used(fill_size * HeapWordSize); increase_used(fill_size * HeapWordSize);