linux-kernel - Re: [PATCH v3 13/13] rust: sync: add functions for initializing `UniqueArc<MaybeUninit<T>>`

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Message-ID: <2943263c-4a6f-4d5f-c841-6fc638d5eb87@ryhl.io>
Date:   Fri, 31 Mar 2023 09:07:37 +0200
From:   Alice Ryhl <alice@...l.io>
To:     y86-dev@...tonmail.com
Cc:     rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org,
        patches@...ts.linux.dev, 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>
Subject: Re: [PATCH v3 13/13] rust: sync: add functions for initializing
 `UniqueArc<MaybeUninit<T>>`

On 3/30/23 00:33, y86-dev@...tonmail.com wrote:
> From: Benno Lossin <y86-dev@...tonmail.com>
> 
> Add two functions `init_with` and `pin_init_with` to
> `UniqueArc<MaybeUninit<T>>` to initialize the memory of already allocated
> `UniqueArc`s. This is useful when you want to allocate memory check some
> condition inside of a context where allocation is forbidden and then
> conditionally initialize an object.
> 
> Signed-off-by: Benno Lossin <y86-dev@...tonmail.com>

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

I asked for this one because we will need it in the binder driver.