diff options
| author | Andreas Hindborg <a.hindborg@kernel.org> | 2025-09-02 11:55:05 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2025-09-02 05:23:56 -0600 |
| commit | 19c37c91b4a0ff7abfc3dcfe165d1377939469ac (patch) | |
| tree | f8288b4aeb4cda4b230146b3392ba7542b4a816e /rust/kernel | |
| parent | 8c32697c4edd4180bc90d367e54fb64490c230c6 (diff) | |
rust: block: add block related constants
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>
Diffstat (limited to 'rust/kernel')
| -rw-r--r-- | rust/kernel/block.rs | 13 |
1 files changed, 13 insertions, 0 deletions
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; |