RFR (M): 8071913: Filter out entries to free/uncommitted regions during iteration

[Thomas Schatzl]

Hi,

On Wed, 2018-10-03 at 11:12 +0200, Stefan Johansson wrote:
> 
> On 2018-10-02 13:28, Thomas Schatzl wrote:
> > Hi all,
> > 
> >    can I have reviews for this change that makes sure that
> > remembered set entries to free or uncommitted regions are not
> > touched during GC?
> > 
> > In order to implement uncommitting regions at remark we need to
> > make sure that these regions and their corresponding side data
> > structures are not touched by GC any more.
> > 
> > This change adds a simple filter in the remembered set iterator
> > plus some careful changes in various locations of the code to avoid
> > just that.
> > 
[...]
> > CR:
> > https://bugs.openjdk.java.net/browse/JDK-8071913
> > Webrev:
> > http://cr.openjdk.java.net/~tschatzl/8071913/webrev/
> 
> Looks good, I agree that going with this simpler approach is a good 
> first step.

  thanks for your review.

Thomas