RFR: Adapt upstream object pinning API

[Roman Kennke]

Am 04.04.2018 um 19:39 schrieb Zhengyu Gu:
> On 04/04/2018 01:33 PM, Roman Kennke wrote:
>> Am 04.04.2018 um 19:02 schrieb Zhengyu Gu:
>>> Adapted upstream object pinning API, also made adjustment to critical
>>> native support to use new API.
>>>
>>>
>>> Webrev:
>>> http://cr.openjdk.java.net/~zgu/shenandoah/pin_interface/webrev.00/
>>>
>>> Test:
>>>
>>>    hotspot_gc_shenandoah on Linux x64 and Windows x64 (release +
>>> fastdebug)
>>>
>>>
>>> Thanks,
>>>
>>> -Zhengyu
>>
>> I was about to merge from upstream jdk/jdk in the next few days. Maybe
>> that would get it in anyway?
> 
> Yes, it will work. I did this for testing, to make sure that it actually
> works.
> 
> I withdraw this patch.

We should consider this. Critical pinning with upstream API depends on
JDK-8200429 which is in jdk/hs but not yet jdk/jdk. I usually only merge
from jdk/jdk. It may take a little while until we get it through regular
means. You can also cherry pick this if you like.

Roman