RFR: 8291555: Implement alternative fast-locking scheme [v60]

[Daniel D. Daugherty]

On Mon, 24 Apr 2023 19:42:35 GMT, Roman Kennke <rkennke at openjdk.org> wrote:

>> Hi there,
>> what is needed to bring this PR over the approval line?
>
>> @rkennke - I'm planning to do another crawl thru review next week.
> 
> Thanks! That is greatly appeciated!

@rkennke - finished my second crawl thru review of 60/68 files changed.
I only skipped the RISC-V files since I know nada about that platform...

My Mach5 testing of v61 is running Tier7 and I hope to start Tier8 later tonight.
So far all testing looks good, but I'll include the usual summary comment in
the bug report...

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PR Comment: https://git.openjdk.org/jdk/pull/10907#issuecomment-1523702754