RFR: 8272447: Remove 'native' ranked Mutex

Coleen Phillimore coleenp at openjdk.java.net
Fri Aug 13 21:20:47 UTC 2021

See JBS issue for more details.  The locks that were native ranking should have a real mutex ranking and participate in the deadlock detection mechanism.  The MonitoringSupport_lock is taken out after the Notification_lock, which is aliased to the Service_lock if -XX:-UseNotificationThread.  Service_lock is ranked tty-2 which is the same as access rank, so I made a new service rank for these two locks to share.  As a future change we should verify that rank+-number doesn't overlap with a different rank.
Tested with tier1-6 in mach5.


Commit messages:
 - 8272447: Remove 'native' ranked Mutex

Changes: https://git.openjdk.java.net/jdk/pull/5116/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5116&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8272447
  Stats: 27 lines in 9 files changed: 1 ins; 7 del; 19 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5116.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5116/head:pull/5116

PR: https://git.openjdk.java.net/jdk/pull/5116

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