RFR(T): 8230327: Make G1DirtyCardQueueSet free-id init unconditional

[Kim Barrett]

> On Aug 29, 2019, at 2:21 AM, Stefan Johansson <stefan.johansson at oracle.com> wrote:
> 
> Hi Kim,
> 
> On 2019-08-29 02:27, Kim Barrett wrote:
>> Please review this trivial cleanup of G1DirtyCardQueueSet
>> initialization. With the separation of G1RedirtyCardsQueueSet from
>> G1DirtyCardQueueSet, the latter is now a singleton class that should
>> always have an associated G1FreeIdSet.  We can now unconditionally
>> construct that object when constructing the DCQS.
>> CR:
>> https://bugs.openjdk.java.net/browse/JDK-8230327
>> Webrev:
>> http://cr.openjdk.java.net/~kbarrett/8230327/open.00/
> Looks good.
> 
> Cheers,
> Stefan
> 
>> Testing:
>> Local (linux-x64) hotspot:tier1.

Thanks.