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rust: block: add block related constants

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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@google.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org>
Link: https://lore.kernel.org/r/20250902-rnull-up-v6-16-v7-11-b5212cc89b98@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Andreas Hindborg 2025-09-02 11:55:05 +02:00 • committed by Jens Axboe
parent 8c32697c4e
commit 19c37c91b4
1 changed files with 13 additions and 0 deletions
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13
rust/kernel/block.rs
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@ -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;