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

[Erik Osterlund]

Hi Ioi,

Thanks for the review!

/Erik

> On 29 Aug 2019, at 21:47, Ioi Lam <ioi.lam at oracle.com> wrote:
> 
> 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
>