RFR(M): 6407976: GC worker number should be unsigned

[Jesper Wilhelmsson]

Looks good!
Thanks for fixing this!

My only question mark is around the type cast for the atomics in taskqueue.cpp. 
I don't see any other solution though as long as we don't have atomics for uint.
If a Reviewer is OK with this, I say ship it!

Thanks,
/Jesper


Evgeniya Stepanova skrev den 9/4/15 14:30:
> Hi,
>
> Please review fix for  JDK-6407976.
> In some source files GC worker threads numbers are being stored as
> signed values and same values in other classes are being stored as unsigned
> values. Fix changed GC worker thread number to be uint.
>
> bug: https://bugs.openjdk.java.net/browse/JDK-6407976
> webrev: http://cr.openjdk.java.net/~eistepan/6407976/webrev.00/
>
> tested by running all hotspot tests on all platforms
>
>
> Thanks,
> Jane
>
> //