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72b8944f14
Locking primitives:
- Mark devm_mutex_init() as __must_check and fix drivers
that didn't check the return code. (Thomas Weißschuh)
- Reorganize <linux/local_lock.h> to better expose the
internal APIs to local variables. (Sebastian Andrzej Siewior)
- Remove OWNER_SPINNABLE in rwsem (Jinliang Zheng)
- Remove redundant #ifdefs in the mutex code (Ran Xiaokai)
Lockdep:
- Avoid returning struct in lock_stats() (Arnd Bergmann)
- Change `static const` into enum for LOCKF_*_IRQ_*
(Arnd Bergmann)
- Temporarily use synchronize_rcu_expedited() in
lockdep_unregister_key() to speed things up.
(Breno Leitao)
Rust runtime:
- Add #[must_use] to Lock::try_lock() (Jason Devers)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2025-07-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"Locking primitives:
- Mark devm_mutex_init() as __must_check and fix drivers that didn't
check the return code (Thomas Weißschuh)
- Reorganize <linux/local_lock.h> to better expose the internal APIs
to local variables (Sebastian Andrzej Siewior)
- Remove OWNER_SPINNABLE in rwsem (Jinliang Zheng)
- Remove redundant #ifdefs in the mutex code (Ran Xiaokai)
Lockdep:
- Avoid returning struct in lock_stats() (Arnd Bergmann)
- Change `static const` into enum for LOCKF_*_IRQ_* (Arnd Bergmann)
- Temporarily use synchronize_rcu_expedited() in
lockdep_unregister_key() to speed things up. (Breno Leitao)
Rust runtime:
- Add #[must_use] to Lock::try_lock() (Jason Devers)"
* tag 'locking-core-2025-07-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
lockdep: Speed up lockdep_unregister_key() with expedited RCU synchronization
locking/mutex: Remove redundant #ifdefs
locking/lockdep: Change 'static const' variables to enum values
locking/lockdep: Avoid struct return in lock_stats()
locking/rwsem: Use OWNER_NONSPINNABLE directly instead of OWNER_SPINNABLE
rust: sync: Add #[must_use] to Lock::try_lock()
locking/mutex: Mark devm_mutex_init() as __must_check
leds: lp8860: Check return value of devm_mutex_init()
spi: spi-nxp-fspi: Check return value of devm_mutex_init()
local_lock: Move this_cpu_ptr() notation from internal to main header
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.