[PATCH v5 0/3] Rust block device driver API and null block driver

[Andreas Hindborg]

From: Andreas Hindborg <a.hindborg@xxxxxxxxxxx>

Hi!

Here is the fifth iteration!. This revision includes a check to validate the
block size in the abstractions rather than in the driver. Also, the `GenDisk`
type state was changed to a builder pattern.

V4 is here [1].

Changes from v4:

 - validate block size in abstractions instead of in driver code
 - refactor `GenDisk` to builder pattern instead of type state
 - refactor `Request::try_end` and `Request::end_ok` methods`
 - fix formatting errors
 - fix and clarify a number of safety comments
 - fix typos in documentation

Thanks to all those who had spare cycles to suggest improvements!

Best regards,
Andreas Hindborg


Link: https://lore.kernel.org/all/20240601134005.621714-1-nmi@xxxxxxxxxxxx/ [1]


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             |  73 +++++++++
 rust/bindings/bindings_helper.h    |   3 +
 rust/helpers.c                     |  16 ++
 rust/kernel/block.rs               |   5 +
 rust/kernel/block/mq.rs            |  98 +++++++++++
 rust/kernel/block/mq/gen_disk.rs   | 215 ++++++++++++++++++++++++
 rust/kernel/block/mq/operations.rs | 237 +++++++++++++++++++++++++++
 rust/kernel/block/mq/raw_writer.rs |  55 +++++++
 rust/kernel/block/mq/request.rs    | 252 +++++++++++++++++++++++++++++
 rust/kernel/block/mq/tag_set.rs    |  85 ++++++++++
 rust/kernel/error.rs               |   6 +
 rust/kernel/lib.rs                 |   2 +
 15 files changed, 1073 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