[jdk8u-dev] RFR: 8253435: Cgroup: 'stomping of _mount_path' crash if manually mounted cpusets exist [v2]

[Jonathan Dowland]

> This is a clean backport of 8253435 to jdk8u-dev for cgroups v2 support.

Jonathan Dowland has updated the pull request incrementally with one additional commit since the last revision:

  Replace log_warning with tty->print_cr

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Changes:
  - all: https://git.openjdk.org/jdk8u-dev/pull/158/files
  - new: https://git.openjdk.org/jdk8u-dev/pull/158/files/14ff347d..acf8fc25

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=158&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=158&range=00-01

  Stats: 8 lines in 1 file changed: 4 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/158.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev pull/158/head:pull/158

PR: https://git.openjdk.org/jdk8u-dev/pull/158