RFR (S): 8188919: Generalize GC thread suspend/resume at safepoints

[Erik Österlund]

Thanks for the review.

/Erik

On 2017-10-12 09:03, Per Liden wrote:
> Looks good!
>
> /Per
>
> On 2017-10-09 17:35, Erik Österlund wrote:
>> Hi,
>>
>> When we synchronize/unsynchronize safepoints, we make sure to perform
>> corresponding suspend/resume calls to GC-specific concurrent workers
>> that may interfere with the safepoint. This is currently done by dumping
>> GC-specific callbacks right in SafepointSynchronize::begin() and
>> SafepointSynchronize::end(). The purpose with this cleanup is to hide
>> this behind a general interface on CollectedHeap instead.
>>
>> Webrev:
>> http://cr.openjdk.java.net/~eosterlund/8188919/webrev.00/
>>
>> Bug:
>> https://bugs.openjdk.java.net/browse/JDK-8188919
>>
>> Thanks,
>> /Erik