Received-SPF: pass (google.com: domain of linux-kernel+bounces-185050-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) client-ip=147.75.80.249;
From: Andreas Hindborg <nmi@metaspace.dk>
To: Jens Axboe <axboe@kernel.dk>,
	Christoph Hellwig <hch@lst.de>,
	Keith Busch <kbusch@kernel.org>,
	Damien Le Moal <dlemoal@kernel.org>,
	Bart Van Assche <bvanassche@acm.org>,
	Hannes Reinecke <hare@suse.de>,
	Ming Lei <ming.lei@redhat.com>,
	"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>
Cc: Andreas Hindborg <a.hindborg@samsung.com>,
	Greg KH <gregkh@linuxfoundation.org>,
	Matthew Wilcox <willy@infradead.org>,
	Miguel Ojeda <ojeda@kernel.org>,
	Alex Gaynor <alex.gaynor@gmail.com>,
	Wedson Almeida Filho <wedsonaf@gmail.com>,
	Boqun Feng <boqun.feng@gmail.com>,
	Gary Guo <gary@garyguo.net>,
	=?UTF-8?q?Bj=C3=B6rn=20Roy=20Baron?= <bjorn3_gh@protonmail.com>,
	Benno Lossin <benno.lossin@proton.me>,
	Alice Ryhl <aliceryhl@google.com>,
	Chaitanya Kulkarni <chaitanyak@nvidia.com>,
	Luis Chamberlain <mcgrof@kernel.org>,
	Yexuan Yang <1182282462@bupt.edu.cn>,
	=?UTF-8?q?Sergio=20Gonz=C3=A1lez=20Collado?= <sergio.collado@gmail.com>,
	Joel Granados <j.granados@samsung.com>,
	"Pankaj Raghav (Samsung)" <kernel@pankajraghav.com>,
	Daniel Gomez <da.gomez@samsung.com>,
	Niklas Cassel <Niklas.Cassel@wdc.com>,
	Philipp Stanner <pstanner@redhat.com>,
	Conor Dooley <conor@kernel.org>,
	Johannes Thumshirn <Johannes.Thumshirn@wdc.com>,
	=?UTF-8?q?Matias=20Bj=C3=B8rling?= <m@bjorling.me>,
	open list <linux-kernel@vger.kernel.org>,
	"rust-for-linux@vger.kernel.org" <rust-for-linux@vger.kernel.org>,
	"lsf-pc@lists.linux-foundation.org" <lsf-pc@lists.linux-foundation.org>,
	"gost.dev@samsung.com" <gost.dev@samsung.com>
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>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

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@metaspace.dk/ [1]
Link: https://lore.kernel.org/all/20240512202215.67763-1-ojeda@kernel.org/ [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