Files
linux/rust/helpers/spinlock.c
Boqun Feng 78c998b04e rust: helper: Add spin_{un,}lock_irq_{enable,disable}() helpers
spin_lock_irq_disable() and spin_unlock_irq_enable() are inline
functions, to use them in Rust helpers are introduced. This is for
interrupt disabling lock abstraction in Rust.

Signed-off-by: Boqun Feng <boqun@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org>
Reviewed-by: Gary Guo <gary@garyguo.net>
Link: https://patch.msgid.link/20260807070218.27144-16-boqun@kernel.org
2026-08-10 12:53:10 +02:00

54 lines
1.2 KiB
C

// SPDX-License-Identifier: GPL-2.0
#include <linux/spinlock.h>
__rust_helper void rust_helper___spin_lock_init(spinlock_t *lock,
const char *name,
struct lock_class_key *key)
{
#ifdef CONFIG_DEBUG_SPINLOCK
# if defined(CONFIG_PREEMPT_RT)
__spin_lock_init(lock, name, key, false);
# else /*!CONFIG_PREEMPT_RT */
__raw_spin_lock_init(spinlock_check(lock), name, key, LD_WAIT_CONFIG);
# endif /* CONFIG_PREEMPT_RT */
#else /* !CONFIG_DEBUG_SPINLOCK */
spin_lock_init(lock);
#endif /* CONFIG_DEBUG_SPINLOCK */
}
__rust_helper void rust_helper_spin_lock(spinlock_t *lock)
{
spin_lock(lock);
}
__rust_helper void rust_helper_spin_unlock(spinlock_t *lock)
{
spin_unlock(lock);
}
__rust_helper int rust_helper_spin_trylock(spinlock_t *lock)
{
return spin_trylock(lock);
}
__rust_helper void rust_helper_spin_assert_is_held(spinlock_t *lock)
{
lockdep_assert_held(lock);
}
__rust_helper void rust_helper_spin_lock_irq_disable(spinlock_t *lock)
{
spin_lock_irq_disable(lock);
}
__rust_helper void rust_helper_spin_unlock_irq_enable(spinlock_t *lock)
{
spin_unlock_irq_enable(lock);
}
__rust_helper int rust_helper_spin_trylock_irq_disable(spinlock_t *lock)
{
return spin_trylock_irq_disable(lock);
}