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

[Andreas Hindborg]

From: Andreas Hindborg <a.hindborg@xxxxxxxxxxx>

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@xxxxxxxxxxxx/


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