RFR: 8322420: [Linux] cgroup v2: Limits in parent nested control groups are not detected [v15]

[Jan Kratochvil]

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

Jan Kratochvil has updated the pull request incrementally with one additional commit since the last revision:

  Unify 4 copies of adjust_controller()

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/17198/files
  - new: https://git.openjdk.org/jdk/pull/17198/files/82db527b..fc17369c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=17198&range=14
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=17198&range=13-14

  Stats: 203 lines in 4 files changed: 43 ins; 139 del; 21 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