ZGC: Add reentrant locking functionality

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    • Type: Enhancement
    • Resolution: Fixed
    • Priority: P4
    • 12
    • Affects Version/s: 12
    • Component/s: hotspot
    • gc
    • b22

      ZGC needs a per-nmethod lock to be used for concurrent IC cleaning, protecting misaligned oops from concurrently being patched by nmethod entry barriers, and read using CompiledMethod::is_unloading(), with interactions crossing JavaThreads and non-Java threads.

            Assignee:
            Per Liden (Inactive)
            Reporter:
            Erik Österlund
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              Created:
              Updated:
              Resolved: