hg: jdk7/hotspot/hotspot: 4 new changesets

[antonios.printezis at sun.com]

Changeset: 39b01ab7035a
Author:    ysr
Date:      2009-10-16 02:05 -0700
URL:       http://hg.openjdk.java.net/jdk7/hotspot/hotspot/rev/39b01ab7035a

6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
6889757: G1: enable card mark elision for initializing writes from compiled code (ReduceInitialCardMarks)
Summary: Defer the (compiler-elided) card-mark upon a slow-path allocation until after the store  and before the next subsequent safepoint; G1 now answers yes to can_elide_tlab_write_barriers().
Reviewed-by: jcoomes, kvn, never

! src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
! src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.cpp
! src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.hpp
! src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.inline.hpp
! src/share/vm/gc_interface/collectedHeap.cpp
! src/share/vm/gc_interface/collectedHeap.hpp
! src/share/vm/memory/genCollectedHeap.hpp
! src/share/vm/opto/graphKit.cpp
! src/share/vm/opto/library_call.cpp
! src/share/vm/opto/runtime.cpp
! src/share/vm/opto/runtime.hpp
! src/share/vm/runtime/thread.cpp
! src/share/vm/runtime/thread.hpp

Changeset: 052a899eec3e
Author:    ysr
Date:      2009-10-20 00:00 -0700
URL:       http://hg.openjdk.java.net/jdk7/hotspot/hotspot/rev/052a899eec3e

6892749: assert(UseParNewGC || UseSerialGC || UseConcMarkSweepGC, "...") fails
Summary: Removed the assert: UseSerialGC is not necessarily always set when serial gc is being used.
Reviewed-by: jcoomes, jmasa, tonyp

! src/share/vm/memory/genCollectedHeap.hpp

Changeset: b0b36f0de97e
Author:    tonyp
Date:      2009-10-20 11:28 -0700
URL:       http://hg.openjdk.java.net/jdk7/hotspot/hotspot/rev/b0b36f0de97e

Merge


Changeset: dfdaf65c3423
Author:    apetrusenko
Date:      2009-10-22 07:43 -0700
URL:       http://hg.openjdk.java.net/jdk7/hotspot/hotspot/rev/dfdaf65c3423

6858886: G1: guarantee(_next_marked_bytes <= used(),"invariant") at heapRegion.hpp:359
Reviewed-by: tonyp, ysr

! src/share/vm/gc_implementation/g1/concurrentMark.cpp