[8u] Request for Approval: 8170888: [linux] Experimental support for cgroup memory limits in container (ie Docker) environments

[David Holmes]

Bug: https://bugs.openjdk.java.net/browse/JDK-8170888

This enhancement adds experimental support for observing the memory 
limits imposed by Linux cgroups, and in particular a container 
environment like Docker.

The enhancement request was approved here:

http://mail.openjdk.java.net/pipermail/jdk8u-dev/2017-January/006325.html

JDK 9 changeset: 
http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/5f1d1df0ea49

8u webrev: http://cr.openjdk.java.net/~dholmes/8170888/webrev.8u/

The changeset can't apply cleanly due to use of unified logging, but 
that is the only change. It was re-reviewed here:

http://mail.openjdk.java.net/pipermail/hotspot-dev/2017-January/025702.html

Thanks,
David