RFR: 8264146 Make Mutex point to rather than embed _name

[Coleen Phillimore]

On Wed, 24 Mar 2021 20:38:58 GMT, Claes Redestad <redestad at openjdk.org> wrote:

>> This change removes the code that copies the name of a Mutex into a 64 char embedded array.
>> Tested with tier1 and performance tests on linux - startup/footprint , specjbb2015, dacapo and javac.
>
> Looks good to me 
> 
> (I was certain I had filed an RFE to this effect but seems not...)

Thanks Claes!

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PR: https://git.openjdk.java.net/jdk/pull/3179