[jdk11u-dev] RFR: 8264524: jdk/internal/platform/docker/TestDockerMemoryMetrics.java fails due to swapping not working

[SendaoYan]

Hi all,

This pull request contains a backport of commit [bfb034ab](https://github.com/openjdk/jdk/commit/bfb034abf9d5e5eb24d524f35b3f745e94631c4a) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.

The commit being backported was authored by Jie Fu on 6 Apr 2021 and was reviewed by Severin Gehwolf.

Thanks!

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Commit messages:
 - Backport bfb034abf9d5e5eb24d524f35b3f745e94631c4a

Changes: https://git.openjdk.org/jdk11u-dev/pull/3104/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=3104&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8264524
  Stats: 25 lines in 1 file changed: 23 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/3104.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/3104/head:pull/3104

PR: https://git.openjdk.org/jdk11u-dev/pull/3104