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8259862: MutableSpace's end should be atomic

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Make _end volatile and use atomic access

Reviewed-by: ayang, tschatzl
This commit is contained in:
Kim Barrett 2021-02-05 07:24:09 +00:00
parent d2bd499222
commit 1e0a1013ef
4 changed files with 15 additions and 20 deletions
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3
src/hotspot/share/gc/parallel/parallelScavengeHeap.hpp
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@ -200,9 +200,6 @@ class ParallelScavengeHeap : public CollectedHeap {
bool supports_inline_contig_alloc() const { return !UseNUMA; }
HeapWord* volatile* top_addr() const { return !UseNUMA ? young_gen()->top_addr() : (HeapWord* volatile*)-1; }
HeapWord** end_addr() const { return !UseNUMA ? young_gen()->end_addr() : (HeapWord**)-1; }
void ensure_parsability(bool retire_tlabs);
void resize_all_tlabs();