RFR: 8375622: G1: Convert G1CodeRootSet to use Atomic<T>

[Aleksey Shipilev]

On Mon, 19 Jan 2026 11:35:39 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

> Hi all,
> 
>   please review this change to convert `G1CodeRootSet` to use `Atomic<T>` instead of `AtomicAccess`.
> 
> Testing: gha,
> 
> Thanks,
>   Thomas

Looks fine with nit.

src/hotspot/share/gc/g1/g1CodeRootSet.hpp line 29:

> 27: 
> 28: #include "code/codeCache.hpp"
> 29: #include "runtime/atomic.hpp"

Yeah, but why here? The `Atomic<size_t>` is fully in `.cpp`, so better include in there, instead of (potentially popular) header?

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PR Review: https://git.openjdk.org/jdk/pull/29296#pullrequestreview-3678649724
PR Review Comment: https://git.openjdk.org/jdk/pull/29296#discussion_r2705247477