git: openjdk/jdk17u: master: 8268893: jcmd to trim the glibc heap

[Thomas Stuefe]

Changeset: d9350016
Author:    Thomas Stuefe <stuefe at openjdk.org>
Date:      2021-09-28 08:52:37 +0000
URL:       https://git.openjdk.java.net/jdk17u/commit/d93500168cd120165fedb9609fdf2e10458976dd

8268893: jcmd to trim the glibc heap

Backport-of: 6096dd9765eaf280890f65c0ff1ab64864b9316a

! src/hotspot/os/linux/os_linux.cpp
! src/hotspot/os/linux/os_linux.hpp
+ src/hotspot/os/linux/trimCHeapDCmd.cpp
+ src/hotspot/os/linux/trimCHeapDCmd.hpp
! src/hotspot/share/services/diagnosticCommand.cpp
+ test/hotspot/jtreg/serviceability/dcmd/vm/TrimLibcHeapTest.java