linux-kernel - [GIT PULL] LOCKDEP and Rust locking changes for v6.14

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Message-ID: <Z2YFO5zr9vm5kdjb@tardis.local>
Date: Fri, 20 Dec 2024 16:00:59 -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>,
	rust-for-linux@...r.kernel.org, Lyude Paul <lyude@...hat.com>
Subject: [GIT PULL] LOCKDEP and Rust locking changes for v6.14

Hi Peter & Ingo,

Please pull the changes of lockdep and Rust locking for v6.14 into tip.

The following changes since commit 63a48181fbcddefe5fb4c6618938bb64c543945b:

  smp/scf: Evaluate local cond_func() before IPI side-effects (2024-12-05 14:25:28 +0100)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/boqun/linux.git tags/lockdep-for-tip.20241220

for you to fetch changes up to fbd7a5a0359bc770e898d918d84977ea61163aad:

  rust: sync: Add lock::Backend::assert_is_held() (2024-12-19 14:04:42 -0800)


I combined lockdep and Rust locking changes into one pull-request,
because it's easy in that way for me, but should you want two different
pull requests, please let me know.

I keep all the Acked-bys in the MAINTAINERS changes, but feel free to
drop them because it's going via tip. Again, thanks for the trust and
thank Miguel for the support!

Regards,
Boqun

----------------------------------------------------------------
Lockdep changes for v6.14:

- Use swap() macro in the ww_mutex test.
- Minor fixes and documentation for lockdep configs on internal data structure sizes.
- Some "-Wunused-function" warning fixes for Clang.

Rust locking changes for v6.14:

- Add Rust locking files into LOCKING PRIMITIVES maintainer entry.
- Add `Lock<(), ..>::from_raw()` function to support abstraction on low level locking.
- Expose `Guard::new()` for public usage and add type alias for spinlock and mutex guards.
- Add lockdep checking when creating a new lock `Guard`.

----------------------------------------------------------------
Andy Shevchenko (2):
      lockdep: Mark chain_hlock_class_idx() with __maybe_unused
      lockdep: Move lockdep_assert_locked() under #ifdef CONFIG_PROVE_LOCKING

Boqun Feng (1):
      locking: MAINTAINERS: Start watching Rust locking primitives

Carlos Llamas (3):
      lockdep: Fix upper limit for LOCKDEP_*_BITS configs
      lockdep: Clarify size for LOCKDEP_*_BITS configs
      lockdep: Document MAX_LOCKDEP_CHAIN_HLOCKS calculation

Lyude Paul (5):
      rust: sync: Add Lock::from_raw() for Lock<(), B>
      rust: sync: Make Guard::new() public
      rust: sync: Add MutexGuard type alias
      rust: sync: Add SpinLockGuard type alias
      rust: sync: Add lock::Backend::assert_is_held()

Thorsten Blum (1):
      locking/ww_mutex/test: Use swap() macro

 MAINTAINERS                        |  7 ++++++-
 kernel/locking/lockdep.c           |  4 +++-
 kernel/locking/lockdep_internals.h |  3 ++-
 kernel/locking/test-ww_mutex.c     |  9 +++------
 lib/Kconfig.debug                  | 18 +++++++++---------
 rust/helpers/mutex.c               |  5 +++++
 rust/helpers/spinlock.c            |  5 +++++
 rust/kernel/sync.rs                |  4 ++--
 rust/kernel/sync/lock.rs           | 35 ++++++++++++++++++++++++++++++++++-
 rust/kernel/sync/lock/mutex.rs     | 13 +++++++++++++
 rust/kernel/sync/lock/spinlock.rs  | 13 +++++++++++++
 11 files changed, 95 insertions(+), 21 deletions(-)