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

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

[Boqun Feng]

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(-)

Re: [GIT PULL] LOCKDEP and Rust locking changes for v6.14

[Peter Zijlstra]

On Fri, Dec 20, 2024 at 04:00:59PM -0800, Boqun Feng wrote:
> 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
> 

Thanks, I've pushed it to queue/locking/core, and will push to tip
tomorrow or something.