RFR: 8253714: [cgroups v2] Soft memory limit incorrectly using memory.high [v2]

[Bob Vandette]

On Mon, 28 Sep 2020 17:34:54 GMT, Severin Gehwolf <sgehwolf at openjdk.org> wrote:

>> Tests using `--memory-reservation` started to fail with newer `crun` cgroups v2-capable runtime. It turns out it was
>> incorrectly setting `memory.high` in an early version and got fixed to set `memory.low` now instead. This change
>> accounts for that.
>
> Severin Gehwolf has refreshed the contents of this pull request, and previous commits have been removed. The
> incremental views will show differences compared to the previous content of the PR.

Marked as reviewed by bobv (Committer).

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PR: https://git.openjdk.java.net/jdk/pull/381