Re: [PATCH 2/2] rust: sync: arc: Add UniqueArc<MaybeUninit<T>::assume_init()

[Vincenzo Palazzo]

> We can already create `UniqueArc<MaybeUninit<T>>` instances with
> `UniqueArc::try_new_uninit()` and write to them with `write()`. Add
> the missing unsafe `assume_init()` function to promote it to
> `UniqueArc<T>`, so users can do piece-wise initialization of the
> contents instead of doing it all at once as long as they keep the
> invariants (the same requirements as `MaybeUninit::assume_init()`).
>
> This mirrors the std `Arc::assume_init()` function. In the kernel,
> since we have `UniqueArc`, arguably this only belongs there since most
> use cases will initialize it immediately after creating it, before
> demoting it to `Arc` to share it.
>
> Signed-off-by: Asahi Lina <lina@xxxxxxxxxxxxx>
> ---

Reviewed-by: Vincenzo Palazzo <vincenzopalazzodev@xxxxxxxxx>