Integrated: 8340103: Add internal set_flag function to VMATree

[Johan Sjölen]

On Fri, 13 Sep 2024 10:12:36 GMT, Johan Sjölen <jsjolen at openjdk.org> wrote:

> Hi!
> 
> The old VirtualMemoryTracker has a method set_reserved_region_type(address, flag). We implement this for the new VMATree implementation by altering the signature slightly to set_reserved_region_type(address, size, flag). This simplifies the implementation greatly for our new data structure and leads to trivial changes for the callers (all callers already know the size).
> 
> This PR implements the internal implementation along with tests, but does not change any callers.
> 
> I also do a few cleanups:
> 
> - Change `Node` to `TreeNode` in tests, we've seen build failures because of this (probably a precompiled headers issue)
> - Add a few `print_on` methods for  easy debugging
> - Add a `size` alias, it was a bit confusing that some functions took an argument `position sz`, so changed that to `size sz` 
> 
> Thanks.

This pull request has now been integrated.

Changeset: 1e086b1d
Author:    Johan Sjölen <jsjolen at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/1e086b1d7305769b59271e2fa428c003216dd52a
Stats:     367 lines in 4 files changed: 353 ins; 1 del; 13 mod

8340103: Add internal set_flag function to VMATree

Reviewed-by: stuefe, azafari, gziemski

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PR: https://git.openjdk.org/jdk/pull/20994