[PATCH v4 0/3] Rust block device driver API and null block driver

Andreas Hindborg
2024-06-01T13:40:35Z

From: Andreas Hindborg <a.hindborg@samsung.com>

Hi!

A few more fixes based on input from Benno. Earlier version here [1].

Changes from v3:

- mq: rewrite `atomic_relaxed_op_unless` in terms of `atomicu64::fetch_update`
- mq: fix docs for `atomic_relaxed_op_unless`
- mq: rewrite initialization of `TagSet` to be more idiomatic
- rnull: add a comment for error path
- rnull: move a ? operator

Best regards,
Andreas Hindborg

Link: https://lore.kernel.org/all/20240601081806.531954-1-nmi@metaspace.dk/

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 | 81 ++++++++++
rust/bindings/bindings_helper.h | 2 +
rust/helpers.c | 16 ++
rust/kernel/block.rs | 5 +
rust/kernel/block/mq.rs | 97 ++++++++++++
rust/kernel/block/mq/gen_disk.rs | 222 ++++++++++++++++++++++++++
rust/kernel/block/mq/operations.rs | 233 ++++++++++++++++++++++++++++
rust/kernel/block/mq/raw_writer.rs | 55 +++++++
rust/kernel/block/mq/request.rs | 241 +++++++++++++++++++++++++++++
rust/kernel/block/mq/tag_set.rs | 85 ++++++++++
rust/kernel/error.rs | 6 +
rust/kernel/lib.rs | 2 +
15 files changed, 1071 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: 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0
--
2.45.1