RFR: 8273476: G1: refine G1CollectedHeap::par_iterate_regions_array_part_from [v4]

[Thomas Schatzl]

On Thu, 9 Sep 2021 09:10:01 GMT, Hamlin Li <mli at openjdk.org> wrote:

>> Suggestion:
>> 
>>                                   length - offset,
>> 
>> 
>> Untested :)
>
> I thought so too at first, but seems it's not.
> The passed in length in both G1CollectionSet::par_iterate/iterate_incremental_part_from are both the length of the "sub" array already. ( increment_length() is passed as length in iterate_incremental_part_from)
> How do you think about it?

You are right.

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PR: https://git.openjdk.java.net/jdk/pull/5414