linux-kernel - [PATCH v7 0/6] rust: add `ww

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20251101161056.22408-1-work@onurozkan.dev>
Date: Sat,  1 Nov 2025 19:10:50 +0300
From: Onur Özkan <work@...rozkan.dev>
To: rust-for-linux@...r.kernel.org
Cc: lossin@...nel.org,
	lyude@...hat.com,
	ojeda@...nel.org,
	alex.gaynor@...il.com,
	boqun.feng@...il.com,
	gary@...yguo.net,
	a.hindborg@...nel.org,
	aliceryhl@...gle.com,
	tmgross@...ch.edu,
	dakr@...nel.org,
	peterz@...radead.org,
	mingo@...hat.com,
	will@...nel.org,
	longman@...hat.com,
	felipe_life@...e.com,
	daniel@...lak.dev,
	bjorn3_gh@...tonmail.com,
	daniel.almeida@...labora.com,
	linux-kernel@...r.kernel.org,
	Onur Özkan <work@...rozkan.dev>
Subject: [PATCH v7 0/6] rust: add `ww_mutex` support

Changes in v7:
  - Split Class and AcquireCtx into separate modules.
  - Removed "Ww" prefixes from type names.
  - Renamed exec.rs -> lock_set.rs and ExecContext -> LockSet.
  - Removed transmute logic from LockSet (formerly ExecContext).
  - Improved various doc-comments.
  - Marked certain AcquireCtx functions as unsafe.
  - Added from_raw constructors for Mutex, MutexGuard, AcquireCtx
    and Class.
  - LockSet::cleanup_on_deadlock no longer triggers reallocations when
    reinitializing AcquireCtx.
  - Incorporated various minor improvements suggested on the v6 series.

Changes in v6:
  - Added `unpinned_new` constructor for `WwClass` and updated
    global macros.
  - Changed all tests (and docs) to use Arc/KBox instead of
    `stack_pin_init` for `WwMutex` and `WwAcquireCtx`.
  - Added `LockKind` and `lock_common` helper to unify locking logic.
  - Added context-based and context-free locking functions for `WwMutex`.
  - Added `ww_mutex/exec` module, a high-level API with auto `EDEADLK`
    handling mechanism.

Changes in v5:
  - Addressed documentation review notes.
  - Removed `unwrap()`s in examples and KUnit tests.

Onur Özkan (6):
  rust: add C wrappers for ww_mutex inline functions
  rust: implement `Class` for ww_class support
  rust: error: add EDEADLK
  rust: ww_mutex: add Mutex, AcquireCtx and MutexGuard
  rust: ww_mutex: implement LockSet
  rust: add test coverage for ww_mutex implementation

 MAINTAINERS                                   |   1 +
 rust/helpers/helpers.c                        |   1 +
 rust/helpers/ww_mutex.c                       |  39 ++
 rust/kernel/error.rs                          |   1 +
 rust/kernel/sync/lock.rs                      |   1 +
 rust/kernel/sync/lock/ww_mutex.rs             | 440 ++++++++++++++++++
 rust/kernel/sync/lock/ww_mutex/acquire_ctx.rs | 211 +++++++++
 rust/kernel/sync/lock/ww_mutex/class.rs       | 156 +++++++
 rust/kernel/sync/lock/ww_mutex/lock_set.rs    | 410 ++++++++++++++++
 9 files changed, 1260 insertions(+)
 create mode 100644 rust/helpers/ww_mutex.c
 create mode 100644 rust/kernel/sync/lock/ww_mutex.rs
 create mode 100644 rust/kernel/sync/lock/ww_mutex/acquire_ctx.rs
 create mode 100644 rust/kernel/sync/lock/ww_mutex/class.rs
 create mode 100644 rust/kernel/sync/lock/ww_mutex/lock_set.rs

-- 
2.51.2