From: Peter Zijlstra <peterz@infradead.org>
To: Marco Elver <elver@google.com>
Cc: "Paul E. McKenney" <paulmck@kernel.org>,
Alexander Potapenko <glider@google.com>,
Bart Van Assche <bvanassche@acm.org>,
Bill Wendling <morbo@google.com>,
Boqun Feng <boqun.feng@gmail.com>,
Dmitry Vyukov <dvyukov@google.com>,
Frederic Weisbecker <frederic@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Ingo Molnar <mingo@kernel.org>, Jann Horn <jannh@google.com>,
Joel Fernandes <joel@joelfernandes.org>,
Jonathan Corbet <corbet@lwn.net>,
Josh Triplett <josh@joshtriplett.org>,
Justin Stitt <justinstitt@google.com>,
Kees Cook <kees@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Miguel Ojeda <ojeda@kernel.org>,
Nathan Chancellor <nathan@kernel.org>,
Neeraj Upadhyay <neeraj.upadhyay@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Steven Rostedt <rostedt@goodmis.org>,
Thomas Gleixner <tglx@linutronix.de>,
Uladzislau Rezki <urezki@gmail.com>,
Waiman Long <longman@redhat.com>, Will Deacon <will@kernel.org>,
kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org,
llvm@lists.linux.dev, rcu@vger.kernel.org,
linux-crypto@vger.kernel.org
Subject: Re: [PATCH RFC 11/24] locking/mutex: Support Clang's capability analysis
Date: Fri, 7 Feb 2025 09:31:19 +0100 [thread overview]
Message-ID: <20250207083119.GV7145@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <20250206181711.1902989-12-elver@google.com>
On Thu, Feb 06, 2025 at 07:10:05PM +0100, Marco Elver wrote:
> extern int __must_check mutex_lock_interruptible_nested(struct mutex *lock,
> + unsigned int subclass) __cond_acquires(0, lock);
> extern int __must_check mutex_lock_killable_nested(struct mutex *lock,
> + unsigned int subclass) __cond_acquires(0, lock);
> +extern int __must_check mutex_lock_interruptible(struct mutex *lock) __cond_acquires(0, lock);
> +extern int __must_check mutex_lock_killable(struct mutex *lock) __cond_acquires(0, lock);
> +extern int mutex_trylock(struct mutex *lock) __cond_acquires(1, lock);
> +extern int atomic_dec_and_mutex_lock(atomic_t *cnt, struct mutex *lock) __cond_acquires(1, lock);
So this form is *MUCH* saner than what we currently have.
Can we please fix up all the existing __cond_lock() code too?
next prev parent reply other threads:[~2025-02-07 8:32 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-06 18:09 [PATCH RFC 00/24] Compiler-Based Capability- and Locking-Analysis Marco Elver
2025-02-06 18:09 ` [PATCH RFC 01/24] compiler_types: Move lock checking attributes to compiler-capability-analysis.h Marco Elver
2025-02-06 18:40 ` Bart Van Assche
2025-02-06 18:48 ` Marco Elver
2025-02-07 8:33 ` Peter Zijlstra
2025-02-06 18:09 ` [PATCH RFC 02/24] compiler-capability-analysis: Rename __cond_lock() to __cond_acquire() Marco Elver
2025-02-07 8:28 ` Peter Zijlstra
2025-02-07 9:32 ` Marco Elver
2025-02-07 9:41 ` Peter Zijlstra
2025-02-07 9:50 ` Marco Elver
2025-02-06 18:09 ` [PATCH RFC 03/24] compiler-capability-analysis: Add infrastructure for Clang's capability analysis Marco Elver
2025-02-06 18:09 ` [PATCH RFC 04/24] compiler-capability-analysis: Add test stub Marco Elver
2025-02-06 18:09 ` [PATCH RFC 05/24] Documentation: Add documentation for Compiler-Based Capability Analysis Marco Elver
2025-02-06 18:10 ` [PATCH RFC 06/24] checkpatch: Warn about capability_unsafe() without comment Marco Elver
2025-02-06 18:10 ` [PATCH RFC 07/24] cleanup: Basic compatibility with capability analysis Marco Elver
2025-02-06 21:29 ` Bart Van Assche
2025-02-06 22:01 ` Marco Elver
2025-02-06 18:10 ` [PATCH RFC 08/24] lockdep: Annotate lockdep assertions for " Marco Elver
2025-02-10 18:09 ` Bart Van Assche
2025-02-10 18:23 ` Marco Elver
2025-02-10 18:53 ` Bart Van Assche
2025-02-11 13:55 ` Marco Elver
2025-02-06 18:10 ` [PATCH RFC 09/24] locking/rwlock, spinlock: Support Clang's " Marco Elver
2025-02-06 18:10 ` [PATCH RFC 10/24] compiler-capability-analysis: Change __cond_acquires to take return value Marco Elver
2025-02-06 18:10 ` [PATCH RFC 11/24] locking/mutex: Support Clang's capability analysis Marco Elver
2025-02-07 8:31 ` Peter Zijlstra [this message]
2025-02-07 20:58 ` Bart Van Assche
2025-02-06 18:10 ` [PATCH RFC 12/24] locking/seqlock: " Marco Elver
2025-02-06 18:10 ` [PATCH RFC 13/24] bit_spinlock: Include missing <asm/processor.h> Marco Elver
2025-02-06 18:10 ` [PATCH RFC 14/24] bit_spinlock: Support Clang's capability analysis Marco Elver
2025-02-06 18:10 ` [PATCH RFC 15/24] rcu: " Marco Elver
2025-02-20 22:00 ` Paul E. McKenney
2025-02-20 22:11 ` Marco Elver
2025-02-20 22:36 ` Paul E. McKenney
2025-02-21 0:16 ` Marco Elver
2025-02-21 1:26 ` Paul E. McKenney
2025-02-21 17:10 ` Marco Elver
2025-02-21 18:08 ` Paul E. McKenney
2025-02-21 18:52 ` Peter Zijlstra
2025-02-21 19:46 ` Marco Elver
2025-02-21 19:57 ` Peter Zijlstra
2025-02-06 18:10 ` [PATCH RFC 16/24] srcu: " Marco Elver
2025-02-06 18:10 ` [PATCH RFC 17/24] kref: Add capability-analysis annotations Marco Elver
2025-02-06 18:10 ` [PATCH RFC 18/24] locking/rwsem: Support Clang's capability analysis Marco Elver
2025-02-06 18:10 ` [PATCH RFC 19/24] locking/local_lock: " Marco Elver
2025-02-06 18:10 ` [PATCH RFC 20/24] debugfs: Make debugfs_cancellation a capability struct Marco Elver
2025-02-06 18:10 ` [PATCH RFC 21/24] kfence: Enable capability analysis Marco Elver
2025-02-06 18:10 ` [PATCH RFC 22/24] kcov: " Marco Elver
2025-02-06 18:10 ` [PATCH RFC 23/24] stackdepot: " Marco Elver
2025-02-06 18:10 ` [PATCH RFC 24/24] rhashtable: " Marco Elver
2025-02-27 7:00 ` [PATCH RFC 00/24] Compiler-Based Capability- and Locking-Analysis Marco Elver
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