[jdk21u-dev] RFR: 8322420: [Linux] cgroup v2: Limits in parent nested control groups are not detected [v4]

[Jan Kratochvil]

> A patch 7 of 7 for: [[21u] Backport intention of 8322420: [Linux] cgroup v2: Limits in parent nested control groups are not detected](https://mail.openjdk.org/pipermail/jdk-updates-dev/2025-April/043206.html)
> 
> It has a patch dependency on PR 6 of 7: https://github.com/openjdk/jdk21u-dev/pull/1663
> 
> This backport is clean.
> 
> The whole patchset has been tested on CentOS-7.9 (for cgroup v1) and on Fedora 40 (for cgroup v2) for test/hotspot/jtreg/containers.

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

 - retry CI #2
 - retry CI

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Changes:
  - all: https://git.openjdk.org/jdk21u-dev/pull/1664/files
  - new: https://git.openjdk.org/jdk21u-dev/pull/1664/files/8f31c049..4d9f7ba5

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1664&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1664&range=02-03

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1664.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1664/head:pull/1664

PR: https://git.openjdk.org/jdk21u-dev/pull/1664