git: openjdk/jdk11u-dev: 8230305: Cgroups v2: Container awareness

[Zhengyu Gu]

Changeset: 8715f37c
Author:    Zhengyu Gu <zgu at openjdk.org>
Date:      2022-03-23 12:24:22 +0000
URL:       https://git.openjdk.java.net/jdk11u-dev/commit/8715f37c6743a49dcc5f2e8fb5cc68f7d5ed8aa2

8230305: Cgroups v2: Container awareness
8229202: Docker reporting causes secondary crashes in error handling
8216366: Add rationale to PER_CPU_SHARES define

Implement Cgroups v2 container awareness in hotspot

Reviewed-by: sgehwolf
Backport-of: d462a6b5c9bd3dae5257cca42ea38c19cb742e3c

+ src/hotspot/os/linux/cgroupSubsystem_linux.cpp
+ src/hotspot/os/linux/cgroupSubsystem_linux.hpp
+ src/hotspot/os/linux/cgroupV1Subsystem_linux.cpp
+ src/hotspot/os/linux/cgroupV1Subsystem_linux.hpp
+ src/hotspot/os/linux/cgroupV2Subsystem_linux.cpp
+ src/hotspot/os/linux/cgroupV2Subsystem_linux.hpp
! src/hotspot/os/linux/osContainer_linux.cpp
! src/hotspot/os/linux/osContainer_linux.hpp
! src/hotspot/os/linux/os_linux.hpp
! test/hotspot/jtreg/containers/docker/TestCPUAwareness.java