| From: |
| Andreas Hindborg <nmi-AT-metaspace.dk> |
| To: |
| Jens Axboe <axboe-AT-kernel.dk>, Christoph Hellwig <hch-AT-lst.de>, Keith Busch <kbusch-AT-kernel.org>, Damien Le Moal <dlemoal-AT-kernel.org>, Bart Van Assche <bvanassche-AT-acm.org>, Hannes Reinecke <hare-AT-suse.de>, Ming Lei <ming.lei-AT-redhat.com>, "linux-block-AT-vger.kernel.org" <linux-block-AT-vger.kernel.org> |
| Subject: |
| [PATCH v2 0/3] Rust block device driver API and null block driver |
| Date: |
| Tue, 21 May 2024 16:03:19 +0200 |
| Message-ID: |
| <20240521140323.2960069-1-nmi@metaspace.dk> |
| Cc: |
| Andreas Hindborg <a.hindborg-AT-samsung.com>, Greg KH <gregkh-AT-linuxfoundation.org>, Matthew Wilcox <willy-AT-infradead.org>, Miguel Ojeda <ojeda-AT-kernel.org>, Alex Gaynor <alex.gaynor-AT-gmail.com>, Wedson Almeida Filho <wedsonaf-AT-gmail.com>, Boqun Feng <boqun.feng-AT-gmail.com>, Gary Guo <gary-AT-garyguo.net>, Björn Roy Baron <bjorn3_gh-AT-protonmail.com>, Benno Lossin <benno.lossin-AT-proton.me>, Alice Ryhl <aliceryhl-AT-google.com>, Chaitanya Kulkarni <chaitanyak-AT-nvidia.com>, Luis Chamberlain <mcgrof-AT-kernel.org>, Yexuan Yang <1182282462-AT-bupt.edu.cn>, Sergio González Collado <sergio.collado-AT-gmail.com>, Joel Granados <j.granados-AT-samsung.com>, "Pankaj Raghav (Samsung)" <kernel-AT-pankajraghav.com>, Daniel Gomez <da.gomez-AT-samsung.com>, Niklas Cassel <Niklas.Cassel-AT-wdc.com>, Philipp Stanner <pstanner-AT-redhat.com>, Conor Dooley <conor-AT-kernel.org>, Johannes Thumshirn <Johannes.Thumshirn-AT-wdc.com>, Matias Bjørling <m-AT-bjorling.me>, open list <linux-kernel-AT-vger.kernel.org>, "rust-for-linux-AT-vger.kernel.org" <rust-for-linux-AT-vger.kernel.org>, "lsf-pc-AT-lists.linux-foundation.org" <lsf-pc-AT-lists.linux-foundation.org>, "gost.dev-AT-samsung.com" <gost.dev-AT-samsung.com> |
| Archive-link: |
| Article |
From: Andreas Hindborg <a.hindborg@samsung.com>
Hi All!
Kernel robot found a few issues with the first iteration of this patch [1]. I
also rebased the patch on the Rust PR for 6.10 [2], because we have some changes
to allocation going in, and this patch needs updates for those changes.
This is a resend to correct those issues.
Changes from v1:
- Fix paths in doc comments so they are correct and `rustdoc` does not complain.
- Fix a typo regarding stabilization of `const_refs_to_static`.
- Properly gate `to_blk_status` behind `CONFIG_BLOCK`.
- Update doc comment, a sector is usually 4096 bytes, not 512.
- Update doc comment, use consistent unit names.
- Rebase on `rust-6.10`.
I did not change the interface to use bytes rather than sectors, even though I
like the idea. I think it is preferable to have some similarity to the C API for
now.
Best regards,
Andreas Hindborg
Link: https://lore.kernel.org/all/20240512183950.1982353-1-nmi@... [1]
Link: https://lore.kernel.org/all/20240512202215.67763-1-ojeda@... [2]
Andreas Hindborg (3):
rust: block: introduce `kernel::block::mq` module
rust: block: add rnull, Rust null_blk implementation
MAINTAINERS: add entry for Rust block device driver API
MAINTAINERS | 14 ++
drivers/block/Kconfig | 9 ++
drivers/block/Makefile | 3 +
drivers/block/rnull.rs | 86 ++++++++++
rust/bindings/bindings_helper.h | 2 +
rust/helpers.c | 16 ++
rust/kernel/block.rs | 5 +
rust/kernel/block/mq.rs | 99 ++++++++++++
rust/kernel/block/mq/gen_disk.rs | 206 ++++++++++++++++++++++++
rust/kernel/block/mq/operations.rs | 245 +++++++++++++++++++++++++++++
rust/kernel/block/mq/raw_writer.rs | 55 +++++++
rust/kernel/block/mq/request.rs | 227 ++++++++++++++++++++++++++
rust/kernel/block/mq/tag_set.rs | 93 +++++++++++
rust/kernel/error.rs | 6 +
rust/kernel/lib.rs | 2 +
15 files changed, 1068 insertions(+)
create mode 100644 drivers/block/rnull.rs
create mode 100644 rust/kernel/block.rs
create mode 100644 rust/kernel/block/mq.rs
create mode 100644 rust/kernel/block/mq/gen_disk.rs
create mode 100644 rust/kernel/block/mq/operations.rs
create mode 100644 rust/kernel/block/mq/raw_writer.rs
create mode 100644 rust/kernel/block/mq/request.rs
create mode 100644 rust/kernel/block/mq/tag_set.rs
base-commit: 97ab3e8eec0ce79d9e265e6c9e4c480492180409
--
2.44.0
