RFR: 8327114: Attach in Linux may have wrong behaviour when pid == ns_pid (Kubernetes debug container) [v6]

[Sebastian Lövdahl]

> 8327114: Attach in Linux may have wrong behaviour when pid == ns_pid (Kubernetes debug container)

Sebastian Lövdahl has updated the pull request incrementally with one additional commit since the last revision:

  Clarify PID 1 check with comment

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Changes:
  - all: https://git.openjdk.org/jdk/pull/19055/files
  - new: https://git.openjdk.org/jdk/pull/19055/files/8b200fc7..543036bf

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=19055&range=05
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=19055&range=04-05

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/19055.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19055/head:pull/19055

PR: https://git.openjdk.org/jdk/pull/19055