RFR (S): 8202021: Improve variable naming in ReferenceProcessor

[sangheon.kim]

Hi Thomas,

On 04/19/2018 12:01 PM, Thomas Schatzl wrote:
> Hi all,
>
>    can I have reviews for this cleanup change that improves variable
> naming in ReferenceProcessor code.
>
> The main change is about renaming some member variables from something
> really confusing to me to something useful (to me again :)) in the
> DiscoveredListIterator class.
>
> The other change is related to changing ReferenceProcessor::num_q to
> num_queues, i.e. spelling out what the "q" is supposed to mean.
>
> That imho improves readability quite a bit.
>
> CR:
> https://bugs.openjdk.java.net/browse/JDK-8202021
> Webrev:
> http://cr.openjdk.java.net/~tschatzl/8202021/webrev/
> Testing:
> local compilation, hs-tier1-4 with 8202017
>
> based on JDK-8202018, but I do not think there is overlap.
>
> Thanks,
>    Thomas
>
Looks good.
Just minor nits, so don't need extra webrev for these.

/src/hotspot/share/gc/shared/referenceProcessor.cpp
112   _discovery_is_mt     = mt_discovery;
113   _num_queues               = MAX2(1U, mt_processing_degree);
114   _max_num_queues           = MAX2(_num_queues, mt_discovery_degree);
- Align with line 112?

312     log_develop_trace(gc, ref)("        obj " INTPTR_FORMAT "/next_d 
" INTPTR_FORMAT, p2i(obj), p2i(next_discovered));
- next_d -> next_discovered

src/hotspot/share/gc/shared/referenceProcessor.hpp
- Copyright year update

src/hotspot/share/gc/shared/referenceProcessor.inline.hpp
- Copyright year update

Thanks,
Sangheon