[aarch64-port-dev ] Request for Approval: Backport patches to fix volatile access inconsistency

[Yangfei (Felix)]

Hi,

    Thanks for reviewing this.  
    I am still waiting for maintainer approval for backporting 2, 3 and 4 to jdk11u repo.  

Felix

> I think this is ok to push. However, I would be happier if Roland 
> could also check it before you do that.

The patch looks reasonable to me.

Roland.