git: openjdk/jdk17u-dev: 8305994: Guarantee eventual async monitor deflation

[Aleksey Shipilev]

Changeset: 547667df
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2023-05-05 12:42:43 +0000
URL:       https://git.openjdk.org/jdk17u-dev/commit/547667dff63ef851a97a5c4629c6d2a83edb6317

8305994: Guarantee eventual async monitor deflation

Reviewed-by: eastigeevich, simonis
Backport-of: 6b81342c2215041dbb7e9020a67cdc56976c97b1

! src/hotspot/share/runtime/globals.hpp
! src/hotspot/share/runtime/monitorDeflationThread.cpp
! src/hotspot/share/runtime/synchronizer.cpp
+ test/hotspot/jtreg/runtime/Monitor/GuaranteedAsyncDeflationIntervalTest.java