linux-kernel - [GIT PULL] LOCKDEP and Rust locking changes for v6.15

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Message-ID: <Z76Uk1d4SHPwVD6n@Mac.home>
Date: Tue, 25 Feb 2025 20:12:03 -0800
From: Boqun Feng <boqun.feng@...il.com>
To: Peter Zijlstra <peterz@...radead.org>, mingo@...hat.com
Cc: Will Deacon <will@...nel.org>, Waiman Long <longman@...hat.com>,
	linux-kernel@...r.kernel.org, Miguel Ojeda <ojeda@...nel.org>,
	Alex Gaynor <alex.gaynor@...il.com>,
	Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>,
	Björn Roy Baron <bjorn3_gh@...tonmail.com>,
	Benno Lossin <benno.lossin@...ton.me>,
	Andreas Hindborg <a.hindborg@...nel.org>,
	Alice Ryhl <aliceryhl@...gle.com>, Trevor Gross <tmgross@...ch.edu>,
	Danilo Krummrich <dakr@...nel.org>, rust-for-linux@...r.kernel.org
Subject: [GIT PULL] LOCKDEP and Rust locking changes for v6.15

Hi Peter & Ingo,

Please pull the changes of lockdep and Rust locking for v6.15 into tip.

The following changes since commit 337369f8ce9e20226402cf139c4f0d3ada7d1705:

  locking/mutex: Add MUTEX_WARN_ON() into fast path (2025-02-21 20:19:12 +0100)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/boqun/linux.git tags/lockdep-for-tip.2025.02.25

for you to fetch changes up to 3b5b307cf84ca3a73abe797df31e0efe897411a9:

  rust: lockdep: Use Pin for all LockClassKey usages (2025-02-25 08:53:08 -0800)


Regards,
Boqun

----------------------------------------------------------------
Lockdep changes for v6.15:

- Fix kernel-doc for rtmutex.
- Fix lock wait context check on softirq for PREEMPT_RT.
- Disable KASAN for lockdep to improve debug kernel performance.

Miscellaneous locking changes for v6.15:

- Use wake_q for semaphore to avoid wake-up in lock critical sections.

Rust locking changes for v6.15:

- Fix the soundness issue around dynamically allocated lock class keys.
- Add CondVar::wait_interruptible_freezable() to allow freezable waits.
- Add Guard::lock_ref() to access the lock reference behind a lock
  guard.

----------------------------------------------------------------
Alice Ryhl (2):
      rust: sync: Add accessor for the lock behind a given guard
      rust: sync: condvar: Add wait_interruptible_freezable()

Boqun Feng (1):
      rust: sync: lock: Add an example for Guard::lock_ref()

Mitchell Levy (2):
      rust: lockdep: Remove support for dynamically allocated LockClassKeys
      rust: lockdep: Use Pin for all LockClassKey usages

Randy Dunlap (1):
      locking/rtmutex: Use struct keyword in kernel-doc comment

Ryo Takakura (1):
      lockdep: Fix wait context check on softirq for PREEMPT_RT

Waiman Long (5):
      locking/semaphore: Use wake_q to wake up processes outside lock critical section
      locking/lock_events: Add locking events for rtmutex slow paths
      locking/lock_events: Add locking events for lockdep
      locking/lockdep: Disable KASAN instrumentation of lockdep.c
      locking/lockdep: Add kasan_check_byte() check in lock_acquire()

 include/linux/bottom_half.h       |  8 +++++
 kernel/locking/Makefile           |  3 +-
 kernel/locking/lock_events_list.h | 28 +++++++++++++++++
 kernel/locking/lockdep.c          | 17 ++++++++++-
 kernel/locking/rtmutex.c          | 29 ++++++++++++++----
 kernel/locking/rtmutex_common.h   |  4 +--
 kernel/locking/semaphore.c        | 13 +++++---
 kernel/softirq.c                  | 12 ++++++++
 rust/helpers/helpers.c            |  1 +
 rust/helpers/sync.c               | 13 ++++++++
 rust/kernel/sync.rs               | 63 ++++++++++++++++++++++++++++++++-------
 rust/kernel/sync/condvar.rs       | 28 ++++++++++++++---
 rust/kernel/sync/lock.rs          | 35 ++++++++++++++++++++--
 rust/kernel/sync/lock/global.rs   |  5 ++--
 rust/kernel/sync/poll.rs          |  2 +-
 rust/kernel/task.rs               |  2 ++
 rust/kernel/workqueue.rs          |  2 +-
 17 files changed, 231 insertions(+), 34 deletions(-)
 create mode 100644 rust/helpers/sync.c