RFR: 8322420: [Linux] cgroup v2: Limits in parent nested control groups are not detected [v13]

[Jan Kratochvil]

> The testcase requires root permissions.
> 
> Fix by  Severin Gehwolf.
> Testcase by Jan Kratochvil.

Jan Kratochvil has updated the pull request incrementally with 10 additional commits since the last revision:

 - Merge branch 'master-jdk-8322420_cgroup_hierarchy_walk_init-test' into master-cgroup
 - +test
 - Merge branch 'master' into master-jdk-8322420_cgroup_hierarchy_walk_init
 - Merge branch 'master' into jdk-8322420_cgroup_hierarchy_walk_init
 - Merge branch 'master' into jdk-8322420_cgroup_hierarchy_walk_init
 - 8322420: [Linux] cgroup v2: Limits in parent nested control groups are not detected
 - Remove the Jan's patch
 - Ignore "max" leafs
 - Remove ctors inheritance according to the Hotspot style
 - Remove the Java part

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/17198/files
  - new: https://git.openjdk.org/jdk/pull/17198/files/060e7688..da84a278

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=17198&range=12
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=17198&range=11-12

  Stats: 876 lines in 19 files changed: 532 ins; 273 del; 71 mod
  Patch: https://git.openjdk.org/jdk/pull/17198.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17198/head:pull/17198

PR: https://git.openjdk.org/jdk/pull/17198