linux-kernel - Re: [PATCH v4 2/2] rust: init: add `write_[pin

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Message-ID: <CAH5fLggBN=KPdy6aghEmf_QSqZxSnN=_6MWDWrLPsqEg0SLpXg@mail.gmail.com>
Date: Mon, 19 Aug 2024 13:36:03 +0200
From: Alice Ryhl <aliceryhl@...gle.com>
To: Benno Lossin <benno.lossin@...ton.me>
Cc: Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>, 
	Wedson Almeida Filho <wedsonaf@...il.com>, Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>, 
	Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
	Andreas Hindborg <a.hindborg@...sung.com>, rust-for-linux@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/2] rust: init: add `write_[pin_]init` functions

On Mon, Aug 19, 2024 at 1:25 PM Benno Lossin <benno.lossin@...ton.me> wrote:
>
> Sometimes it is necessary to split allocation and initialization into
> two steps. One such situation is when reusing existing allocations
> obtained via `Box::drop_contents`. See [1] for an example.
> In order to support this use case add `write_[pin_]init` functions to the
> pin-init API. These functions operate on already allocated smart
> pointers that wrap `MaybeUninit<T>`.
>
> Signed-off-by: Benno Lossin <benno.lossin@...ton.me>
> Link: https://lore.kernel.org/rust-for-linux/f026532f-8594-4f18-9aa5-57ad3f5bc592@proton.me/ [1]

Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>