RFR: 8300127: Serial: Remove unnecessary from-space iteration in DefNewGeneration::oop_since_save_marks_iterate [v2]

[Albert Mingkun Yang]

On Wed, 25 Jan 2023 16:39:48 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

>> Albert Mingkun Yang has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   review
>
> src/hotspot/share/gc/serial/defNewGeneration.inline.hpp line 94:
> 
>> 92: template <typename OopClosureType>
>> 93: void DefNewGeneration::oop_since_save_marks_iterate(OopClosureType* cl) {
>> 94:   // no allocation in from-space (eden/from)
> 
> I found the comment a bit confusing (and not conforming to style), here's an attempt to improve.
> Suggestion:
> 
>   // No allocation in eden and from-space, so no iteration required.

I was using the `from-space` term from copying GC algo to refer both eden and from spaces in the code.

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PR: https://git.openjdk.org/jdk/pull/11995