hg: hsx/hotspot-rt/hotspot: 7043987: 3/3 JVMTI FollowReferences is slow

[daniel.daugherty at oracle.com]

Changeset: d425748f2203
Author:    dcubed
Date:      2011-06-23 20:31 -0700
URL:       http://hg.openjdk.java.net/hsx/hotspot-rt/hotspot/rev/d425748f2203

7043987: 3/3 JVMTI FollowReferences is slow
Summary: VM_HeapWalkOperation::doit() should only reset mark bits when necessary.
Reviewed-by: dsamersoff, ysr, dholmes, dcubed
Contributed-by: ashok.srinivasa.murthy at oracle.com

! src/share/vm/prims/jvmtiTagMap.cpp