[jdk8u-dev] RFR: 8239785: Cgroups: Incorrect detection logic on old systems in hotspot [v4]
Jonathan Dowland
jdowland at openjdk.org
Tue Nov 1 15:17:42 UTC 2022
> This is a backport of add18914fb1294999877b563c734a25b4c17b922 for cgroups v2 support injdk8u-dev, via the 11u backport.
>
> It does not apply clean:
>
> * context issues for changes made for the different approach for logging in 8u
> * copyright lines
>
> Small amount of re-working of new code that used `log_trace`/`log_debug` to use the 8u approach.
Jonathan Dowland has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains three commits:
- Move test to a more 8u-appropriate location
Container (cgroups, docker) tests in 8u reside in
hotspot/test/runtime/containers
- remove duplicate include of osContainer_linux
With the backport of 8189762, the include of osContainer_linux was
moved to a later #ifdef stanza, relative to the original. This caused
a context problem with this backport.
- 8239785: Cgroups: Incorrect detection logic on old systems in hotspot
Return NULL subsystem if no cgroup controllers are mounted.
Reviewed-by: sgehwolf
Backport-of: add18914fb1294999877b563c734a25b4c17b922
-------------
Changes: https://git.openjdk.org/jdk8u-dev/pull/135/files
Webrev: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=135&range=03
Stats: 703 lines in 6 files changed: 527 ins; 95 del; 81 mod
Patch: https://git.openjdk.org/jdk8u-dev/pull/135.diff
Fetch: git fetch https://git.openjdk.org/jdk8u-dev pull/135/head:pull/135
PR: https://git.openjdk.org/jdk8u-dev/pull/135
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