RFR: 8229017: ZGC: Various cleanups of ZVerify

[Per Liden]

Thanks Erik!

/Per

On 8/6/19 3:11 PM, Erik Österlund wrote:
> Hi Per,
> 
> Looks good.
> 
> Thanks,
> /Erik
> 
> On 2019-08-05 15:52, Per Liden wrote:
>> Stefan asked me to break out the ZStatTimerDisable fix into a separate 
>> fix, which I did (JDK-8229135), so here's an updated webrev without 
>> that part:
>>
>> http://cr.openjdk.java.net/~pliden/8229017/webrev.1
>>
>> /Per
>>
>> On 8/2/19 11:40 AM, Per Liden wrote:
>>> Hi,
>>>
>>> This patch does various cleanups of ZVerify, basically a post-commit 
>>> review of JDK-8227175. The patch mostly moves some code around and 
>>> adjusts a few names. However, there's also one bug fix and one logic 
>>> change:
>>>
>>> * ZVerify::roots_strong() didn't have a ZStatTimerDisable.
>>>
>>> * The call to ClassLoaderDataGraph::clear_claimed_marks() was moved 
>>> from ZMarkConcurrentRootsTask() to ZConcurrentRootsIterator(), and 
>>> now only clears the claim type the iterator actually used (instead of 
>>> all types).
>>>
>>> Bug: https://bugs.openjdk.java.net/browse/JDK-8229017
>>> Webrev: http://cr.openjdk.java.net/~pliden/8229017/webrev.0
>>>
>>> /Per
>