RFR: 8224815: Remove non-GC uses of CollectedHeap::is_in_reserved()

[Ioi Lam]

The CDS changes in filemap.cpp/hpp look good to me.

Thanks
- Ioi

On 8/9/19 12:43 AM, Erik Österlund wrote:
> Hi,
>
> The CollectedHeap::is_in_reserved() function assumes the GC has a 
> contiguous heap. This might not be the case, and hence the shared code 
> should not make assumptions about that. It should use 
> CollectedHeap::is_in() instead.
>
> However, CompressedOops inherently assumes the heap is contiguous, so 
> I let it know about the reserved region.
>
> This patch depends on 8229278 and 8229189, which are both out for 
> review right now.
>
> Bug:
> https://bugs.openjdk.java.net/browse/JDK-8224815
>
> Webrev:
> http://cr.openjdk.java.net/~eosterlund/8224815/webrev.00/
>
> Thanks,
> /Erik