RFR(XS): 8240592: HeapRegionManager::rebuild_free_list logs 0s for the estimated free regions before

[Kim Barrett]

> On Mar 5, 2020, at 5:37 AM, Ivan Walulya <ivan.walulya at oracle.com> wrote:
> 
> Hi all,
> 
> Please review a small modification to fix logging during HeapRegionManager::rebuild_free_list.
> 
> JBS: https://bugs.openjdk.java.net/browse/JDK-8240592
> Webrev: http://cr.openjdk.java.net/~iwalulya/8240592/00/

I think I'd prefer the old ordering, but capture num_free_regions()
into a variable before the abandon, and use that variable in the logging.

But there's also the question of why the log message mentions the
number of free regions at all, since the number of pre-existing free
regions isn't important because of the abandonment.