[jdk11u-dev] RFR: 8253727: [cgroups v2] Memory and swap limits reported incorrectly [v3]

[Severin Gehwolf]

> Backport JDK-8253727 to 11u-dev. Depends on #863.
> 
> Testing: container tests on a cgroups v2 system

Severin Gehwolf has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains one commit:

  8253727: [cgroups v2] Memory and swap limits reported incorrectly
  
  Account for interface files for swap and memory being reported independently.
  The cgroup v1-like value is now reported by adding the memory.max value to
  the memory.swap.max value, and memory.current and memory.swap.current
  respectively.
  
  Reviewed-by: bobv, shade

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Changes: https://git.openjdk.java.net/jdk11u-dev/pull/894/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=894&range=02
  Stats: 47 lines in 3 files changed: 42 ins; 0 del; 5 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/894.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/894/head:pull/894

PR: https://git.openjdk.java.net/jdk11u-dev/pull/894