RFR: 8299703: GenShen: improvements in card scanning [v5]

[Y. Srinivas Ramakrishna]

On Tue, 31 Jan 2023 14:53:58 GMT, Kelvin Nilsen <kdnilsen at openjdk.org> wrote:

>> src/hotspot/share/gc/shenandoah/shenandoahGeneration.cpp line 975:
>> 
>>> 973: 
>>> 974: size_t ShenandoahGeneration::adjust_available(intptr_t adjustment) {
>>> 975:   // TODO: ysr: revert to an assert
>> 
>> Do you want to make these refinements before we integerate?
>
> Or maybe just remove them?

I'll change them to warnings.

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PR: https://git.openjdk.org/shenandoah/pull/193