git: openjdk/jdk: 8263551: Provide shared lock-free FIFO queue implementation

[Man Cao]

Changeset: e2ec997b
Author:    Man Cao <manc at openjdk.org>
Date:      2021-03-31 18:29:37 +0000
URL:       https://git.openjdk.java.net/jdk/commit/e2ec997b

8263551: Provide shared lock-free FIFO queue implementation

Create a generalized lock-free queue implementation based on G1DirtyCardQueueSet::Queue.

Reviewed-by: kbarrett, iwalulya

! src/hotspot/share/gc/g1/g1DirtyCardQueue.cpp
! src/hotspot/share/gc/g1/g1DirtyCardQueue.hpp
+ src/hotspot/share/utilities/lockFreeQueue.hpp
+ src/hotspot/share/utilities/lockFreeQueue.inline.hpp
+ test/hotspot/gtest/utilities/test_lockFreeQueue.cpp