RFR: 8265268: Unify ReservedSpace reservation code in initialize and try_reserve_heap [v2]

[Stefan Johansson]

On Thu, 22 Apr 2021 08:42:51 GMT, Ivan Walulya <iwalulya at openjdk.org> wrote:

>> Stefan Johansson has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Thomas and Ivan review
>
> src/hotspot/share/memory/virtualspace.cpp line 159:
> 
>> 157:     base = map_or_reserve_memory(size, fd, exec);
>> 158:     // Check alignment constraints. This is only needed when there is
>> 159:     // no requested address. If a requested address is used it must be
> 
> "If a requested address is used it must be aligned." seems redundant here, as it is covered in the branch above, and the assert clearly states that.

Yes, I added the assert later on and that really made this redundant. Removed.

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PR: https://git.openjdk.java.net/jdk/pull/3570