hg: shenandoah/jdk8u/hotspot: 2 new changesets

[ashipile at redhat.com]

Changeset: 5bf4c8ae87d4
Author:    shade
Date:      2017-11-20 21:35 +0100
URL:       http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/5bf4c8ae87d4

[backport] Passive should opt-in the barriers, not opt-out

! src/share/vm/c1/c1_LIRGenerator.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahCollectorPolicy.cpp

Changeset: d910bb5e8bb9
Author:    shade
Date:      2017-11-20 21:39 +0100
URL:       http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/d910bb5e8bb9

[backport] Enable biased locking for Shenandoah by default

! src/share/vm/runtime/arguments.cpp