hg: jdk7/hotspot-gc/hotspot: 6604422: G1: re-use half-promoted regions; ...

[antonios.printezis at sun.com]

Changeset: 6c4cea9bfa11
Author:    tonyp
Date:      2009-03-15 22:03 -0400
URL:       http://hg.openjdk.java.net/jdk7/hotspot-gc/hotspot/rev/6c4cea9bfa11

6604422: G1: re-use half-promoted regions
6728271: G1: Cleanup G1CollectedHeap::get_gc_alloc_regions()
Summary: It allows the last half-full region to be allocated to during a GC to be reused during the next GC.
Reviewed-by: apetrusenko, jcoomes

! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
! src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp