RFR: 8280375: G1: Tighten mem region limit in G1RebuildRemSetHeapRegionClosure [v2]

[Albert Mingkun Yang]

On Fri, 21 Jan 2022 12:41:33 GMT, Hamlin Li <mli at openjdk.org> wrote:

>> Currently, it uses `hr->end()` to guard the mem scan limit, but it should be top instead of end.
>
> Hamlin Li has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Thomas review

Marked as reviewed by ayang (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/7154