hg: jdk/jdk: 8248426: NMT: VirtualMemoryTracker::split_reserved_region() does not properly update summary counting

[zgu at redhat.com]

Changeset: 8315514d0952
Author:    zgu
Date:      2020-07-09 13:34 -0400
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/8315514d0952

8248426: NMT: VirtualMemoryTracker::split_reserved_region() does not properly update summary counting
Reviewed-by: stuefe, minqi

! src/hotspot/share/services/virtualMemoryTracker.cpp
! src/hotspot/share/services/virtualMemoryTracker.hpp