RFR (S) 8252043: Move inner class metaspace cleaning out of safepoint cleanup tasks

[Erik Österlund]

Hi Coleen,

This is definitely a step in the right direction. Looks good!

Thanks,
/Erik

On 2020-08-19 23:47, Coleen Phillimore wrote:
> Summary: Clean up inner metaspaces from ServiceThread if cleanup is 
> needed for concurrent GCs.
>
> Moved inner metaspace cleaning back to class unloading, unless using 
> concurrent GC.  There we initiate a safepoint if inner metaspaces 
> require cleaning.
>
> Tested with tier1-6.
>
> open webrev at http://cr.openjdk.java.net/~coleenp/2020/8252043.01/webrev
> bug link https://bugs.openjdk.java.net/browse/JDK-8252043
>
> Thanks,
> Coleen