RFR: 8344883: Do not use mtNone if we know the tag type [v2]

[Stefan Karlsson]

On Mon, 31 Mar 2025 18:42:16 GMT, Gerard Ziemski <gziemski at openjdk.org> wrote:

>> src/hotspot/share/runtime/os.cpp line 2130:
>> 
>>> 2128:     log_trace(os, map)(ERRFMT, ERRFMTARGS);
>>> 2129:     log_debug(os, map)("successfully attached at " PTR_FORMAT, p2i(result));
>>> 2130:     MemTracker::record_virtual_memory_reserve((address)result, bytes, CALLER_PC, mtNone);
>> 
>> I think attempt_reserve_memory_between should provide the correct mem tag.
>
> I wasn't sure what that is here, we can do this in a follow up?

My suggestion was to change `attempt_reserve_memory_between` to take MemTag as an argument. It's OK to do that as a follow-up PR.

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PR Review Comment: https://git.openjdk.org/jdk/pull/24282#discussion_r2021646441