linux-kernel - Re: [PATCH v6 12/18] rust: block: add block related constants

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Message-Id: <2D2AEDEC-A62F-463C-9119-5B3F1DB3E940@collabora.com>
Date: Wed, 27 Aug 2025 10:52:40 -0300
From: Daniel Almeida <daniel.almeida@...labora.com>
To: Andreas Hindborg <a.hindborg@...nel.org>
Cc: Boqun Feng <boqun.feng@...il.com>,
 Miguel Ojeda <ojeda@...nel.org>,
 Alex Gaynor <alex.gaynor@...il.com>,
 Gary Guo <gary@...yguo.net>,
 Björn Roy Baron <bjorn3_gh@...tonmail.com>,
 Benno Lossin <lossin@...nel.org>,
 Alice Ryhl <aliceryhl@...gle.com>,
 Trevor Gross <tmgross@...ch.edu>,
 Danilo Krummrich <dakr@...nel.org>,
 Jens Axboe <axboe@...nel.dk>,
 Breno Leitao <leitao@...ian.org>,
 linux-block@...r.kernel.org,
 rust-for-linux@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 12/18] rust: block: add block related constants



> On 22 Aug 2025, at 09:14, Andreas Hindborg <a.hindborg@...nel.org> wrote:
> 
> Add a few block subsystem constants to the rust `kernel::block` name space.
> This makes it easier to access the constants from rust code.
> 
> Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>
> Signed-off-by: Andreas Hindborg <a.hindborg@...nel.org>
> ---
> rust/kernel/block.rs | 13 +++++++++++++
> 1 file changed, 13 insertions(+)
> 
> diff --git a/rust/kernel/block.rs b/rust/kernel/block.rs
> index 150f710efe5b..32c8d865afb6 100644
> --- a/rust/kernel/block.rs
> +++ b/rust/kernel/block.rs
> @@ -3,3 +3,16 @@
> //! Types for working with the block layer.
> 
> pub mod mq;
> +
> +/// Bit mask for masking out [`SECTOR_SIZE`].
> +pub const SECTOR_MASK: u32 = bindings::SECTOR_MASK;
> +
> +/// Sectors are size `1 << SECTOR_SHIFT`.
> +pub const SECTOR_SHIFT: u32 = bindings::SECTOR_SHIFT;
> +
> +/// Size of a sector.
> +pub const SECTOR_SIZE: u32 = bindings::SECTOR_SIZE;
> +
> +/// The difference between the size of a page and the size of a sector,
> +/// expressed as a power of two.
> +pub const PAGE_SECTORS_SHIFT: u32 = bindings::PAGE_SECTORS_SHIFT;
> 
> -- 
> 2.47.2
> 
> 
> 

Reviewed-by: Daniel Almeida <daniel.almeida@...labora.com>