linux-kernel - Re: [PATCH v2 3/5] rust: id_pool: do not supply starting capacity

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Message-ID: <CACQBu=UyZ_=A3j56xNX+F8nExTN8CdCrAXbTRT6z-9MePyuqKg@mail.gmail.com>
Date: Tue, 21 Oct 2025 16:09:49 +0200
From: Burak Emir <bqe@...gle.com>
To: Alice Ryhl <aliceryhl@...gle.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Yury Norov <yury.norov@...il.com>, 
	Arve Hjønnevåg <arve@...roid.com>, 
	Todd Kjos <tkjos@...roid.com>, Martijn Coenen <maco@...roid.com>, 
	Joel Fernandes <joelagnelf@...dia.com>, Christian Brauner <brauner@...nel.org>, 
	Carlos Llamas <cmllamas@...gle.com>, Suren Baghdasaryan <surenb@...gle.com>, Miguel Ojeda <ojeda@...nel.org>, 
	Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>, 
	Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
	Benno Lossin <lossin@...nel.org>, Andreas Hindborg <a.hindborg@...nel.org>, 
	Trevor Gross <tmgross@...ch.edu>, Danilo Krummrich <dakr@...nel.org>, rust-for-linux@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/5] rust: id_pool: do not supply starting capacity

On Tue, Oct 21, 2025 at 3:33 PM Alice Ryhl <aliceryhl@...gle.com> wrote:
>
> When creating the initial IdPool, Rust Binder simply wants the largest
> value that does not allocate. Having to handle allocating error failures
> that cannot happen is inconvenient, so make the constructor infallible
> by removing the size argument.
>
> Signed-off-by: Alice Ryhl <aliceryhl@...gle.com>
Reviewed-by: Burak Emir <bqe@...gle.com>

Since Binder is the one use case we made this abstraction is for, it
makes sense to me.

cheers,
Burak