RFR(S): 8165489: Missing G1 barrier in Unsafe_GetObjectVolatile

[Kim Barrett]

> On Sep 15, 2016, at 12:09 PM, Doerr, Martin <martin.doerr at sap.com> wrote:
> 
> Hi Kim and Mikael,
> 
> here's how it looks like according to the current state of the discussion:
> http://cr.openjdk.java.net/~mdoerr/8165489_G1_Unsafe/webrev.02/
> 
> Thanks for your input. I think it looks good this way.
> 
> If I'm not missing anything, the only open question is if v should be put into a handle which gets passed to ensure_satb_referent_alive. IMHO it looks better as it is now, but if you come to the conclusion that the handle is desired, I'll provide an update.

This looks good.