diff options
Diffstat (limited to 'include/linux/spinlock_api_smp.h')
| -rw-r--r-- | include/linux/spinlock_api_smp.h | 360 |
1 files changed, 59 insertions, 301 deletions
diff --git a/include/linux/spinlock_api_smp.h b/include/linux/spinlock_api_smp.h index 8264a7f459bc..e253ccd7a604 100644 --- a/include/linux/spinlock_api_smp.h +++ b/include/linux/spinlock_api_smp.h @@ -17,165 +17,76 @@ int in_lock_functions(unsigned long addr); -#define assert_spin_locked(x) BUG_ON(!spin_is_locked(x)) - -void __lockfunc _spin_lock(spinlock_t *lock) __acquires(lock); -void __lockfunc _spin_lock_nested(spinlock_t *lock, int subclass) - __acquires(lock); -void __lockfunc _spin_lock_nest_lock(spinlock_t *lock, struct lockdep_map *map) - __acquires(lock); -void __lockfunc _read_lock(rwlock_t *lock) __acquires(lock); -void __lockfunc _write_lock(rwlock_t *lock) __acquires(lock); -void __lockfunc _spin_lock_bh(spinlock_t *lock) __acquires(lock); -void __lockfunc _read_lock_bh(rwlock_t *lock) __acquires(lock); -void __lockfunc _write_lock_bh(rwlock_t *lock) __acquires(lock); -void __lockfunc _spin_lock_irq(spinlock_t *lock) __acquires(lock); -void __lockfunc _read_lock_irq(rwlock_t *lock) __acquires(lock); -void __lockfunc _write_lock_irq(rwlock_t *lock) __acquires(lock); -unsigned long __lockfunc _spin_lock_irqsave(spinlock_t *lock) - __acquires(lock); -unsigned long __lockfunc _spin_lock_irqsave_nested(spinlock_t *lock, int subclass) - __acquires(lock); -unsigned long __lockfunc _read_lock_irqsave(rwlock_t *lock) - __acquires(lock); -unsigned long __lockfunc _write_lock_irqsave(rwlock_t *lock) - __acquires(lock); -int __lockfunc _spin_trylock(spinlock_t *lock); -int __lockfunc _read_trylock(rwlock_t *lock); -int __lockfunc _write_trylock(rwlock_t *lock); -int __lockfunc _spin_trylock_bh(spinlock_t *lock); -void __lockfunc _spin_unlock(spinlock_t *lock) __releases(lock); -void __lockfunc _read_unlock(rwlock_t *lock) __releases(lock); -void __lockfunc _write_unlock(rwlock_t *lock) __releases(lock); -void __lockfunc _spin_unlock_bh(spinlock_t *lock) __releases(lock); -void __lockfunc _read_unlock_bh(rwlock_t *lock) __releases(lock); -void __lockfunc _write_unlock_bh(rwlock_t *lock) __releases(lock); -void __lockfunc _spin_unlock_irq(spinlock_t *lock) __releases(lock); -void __lockfunc _read_unlock_irq(rwlock_t *lock) __releases(lock); -void __lockfunc _write_unlock_irq(rwlock_t *lock) __releases(lock); -void __lockfunc _spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags) - __releases(lock); -void __lockfunc _read_unlock_irqrestore(rwlock_t *lock, unsigned long flags) - __releases(lock); -void __lockfunc _write_unlock_irqrestore(rwlock_t *lock, unsigned long flags) - __releases(lock); +#define assert_raw_spin_locked(x) BUG_ON(!raw_spin_is_locked(x)) + +void __lockfunc _raw_spin_lock(raw_spinlock_t *lock) __acquires(lock); +void __lockfunc _raw_spin_lock_nested(raw_spinlock_t *lock, int subclass) + __acquires(lock); +void __lockfunc +_raw_spin_lock_nest_lock(raw_spinlock_t *lock, struct lockdep_map *map) + __acquires(lock); +void __lockfunc _raw_spin_lock_bh(raw_spinlock_t *lock) __acquires(lock); +void __lockfunc _raw_spin_lock_irq(raw_spinlock_t *lock) + __acquires(lock); + +unsigned long __lockfunc _raw_spin_lock_irqsave(raw_spinlock_t *lock) + __acquires(lock); +unsigned long __lockfunc +_raw_spin_lock_irqsave_nested(raw_spinlock_t *lock, int subclass) + __acquires(lock); +int __lockfunc _raw_spin_trylock(raw_spinlock_t *lock); +int __lockfunc _raw_spin_trylock_bh(raw_spinlock_t *lock); +void __lockfunc _raw_spin_unlock(raw_spinlock_t *lock) __releases(lock); +void __lockfunc _raw_spin_unlock_bh(raw_spinlock_t *lock) __releases(lock); +void __lockfunc _raw_spin_unlock_irq(raw_spinlock_t *lock) __releases(lock); +void __lockfunc +_raw_spin_unlock_irqrestore(raw_spinlock_t *lock, unsigned long flags) + __releases(lock); #ifdef CONFIG_INLINE_SPIN_LOCK -#define _spin_lock(lock) __spin_lock(lock) -#endif - -#ifdef CONFIG_INLINE_READ_LOCK -#define _read_lock(lock) __read_lock(lock) -#endif - -#ifdef CONFIG_INLINE_WRITE_LOCK -#define _write_lock(lock) __write_lock(lock) +#define _raw_spin_lock(lock) __raw_spin_lock(lock) #endif #ifdef CONFIG_INLINE_SPIN_LOCK_BH -#define _spin_lock_bh(lock) __spin_lock_bh(lock) -#endif - -#ifdef CONFIG_INLINE_READ_LOCK_BH -#define _read_lock_bh(lock) __read_lock_bh(lock) -#endif - -#ifdef CONFIG_INLINE_WRITE_LOCK_BH -#define _write_lock_bh(lock) __write_lock_bh(lock) +#define _raw_spin_lock_bh(lock) __raw_spin_lock_bh(lock) #endif #ifdef CONFIG_INLINE_SPIN_LOCK_IRQ -#define _spin_lock_irq(lock) __spin_lock_irq(lock) -#endif - -#ifdef CONFIG_INLINE_READ_LOCK_IRQ -#define _read_lock_irq(lock) __read_lock_irq(lock) -#endif - -#ifdef CONFIG_INLINE_WRITE_LOCK_IRQ -#define _write_lock_irq(lock) __write_lock_irq(lock) +#define _raw_spin_lock_irq(lock) __raw_spin_lock_irq(lock) #endif #ifdef CONFIG_INLINE_SPIN_LOCK_IRQSAVE -#define _spin_lock_irqsave(lock) __spin_lock_irqsave(lock) -#endif - -#ifdef CONFIG_INLINE_READ_LOCK_IRQSAVE -#define _read_lock_irqsave(lock) __read_lock_irqsave(lock) -#endif - -#ifdef CONFIG_INLINE_WRITE_LOCK_IRQSAVE -#define _write_lock_irqsave(lock) __write_lock_irqsave(lock) +#define _raw_spin_lock_irqsave(lock) __raw_spin_lock_irqsave(lock) #endif #ifdef CONFIG_INLINE_SPIN_TRYLOCK -#define _spin_trylock(lock) __spin_trylock(lock) -#endif - -#ifdef CONFIG_INLINE_READ_TRYLOCK -#define _read_trylock(lock) __read_trylock(lock) -#endif - -#ifdef CONFIG_INLINE_WRITE_TRYLOCK -#define _write_trylock(lock) __write_trylock(lock) +#define _raw_spin_trylock(lock) __raw_spin_trylock(lock) #endif #ifdef CONFIG_INLINE_SPIN_TRYLOCK_BH -#define _spin_trylock_bh(lock) __spin_trylock_bh(lock) +#define _raw_spin_trylock_bh(lock) __raw_spin_trylock_bh(lock) #endif #ifdef CONFIG_INLINE_SPIN_UNLOCK -#define _spin_unlock(lock) __spin_unlock(lock) -#endif - -#ifdef CONFIG_INLINE_READ_UNLOCK -#define _read_unlock(lock) __read_unlock(lock) -#endif - -#ifdef CONFIG_INLINE_WRITE_UNLOCK -#define _write_unlock(lock) __write_unlock(lock) +#define _raw_spin_unlock(lock) __raw_spin_unlock(lock) #endif #ifdef CONFIG_INLINE_SPIN_UNLOCK_BH -#define _spin_unlock_bh(lock) __spin_unlock_bh(lock) -#endif - -#ifdef CONFIG_INLINE_READ_UNLOCK_BH -#define _read_unlock_bh(lock) __read_unlock_bh(lock) -#endif - -#ifdef CONFIG_INLINE_WRITE_UNLOCK_BH -#define _write_unlock_bh(lock) __write_unlock_bh(lock) +#define _raw_spin_unlock_bh(lock) __raw_spin_unlock_bh(lock) #endif #ifdef CONFIG_INLINE_SPIN_UNLOCK_IRQ -#define _spin_unlock_irq(lock) __spin_unlock_irq(lock) -#endif - -#ifdef CONFIG_INLINE_READ_UNLOCK_IRQ -#define _read_unlock_irq(lock) __read_unlock_irq(lock) -#endif - -#ifdef CONFIG_INLINE_WRITE_UNLOCK_IRQ -#define _write_unlock_irq(lock) __write_unlock_irq(lock) +#define _raw_spin_unlock_irq(lock) __raw_spin_unlock_irq(lock) #endif #ifdef CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE -#define _spin_unlock_irqrestore(lock, flags) __spin_unlock_irqrestore(lock, flags) -#endif - -#ifdef CONFIG_INLINE_READ_UNLOCK_IRQRESTORE -#define _read_unlock_irqrestore(lock, flags) __read_unlock_irqrestore(lock, flags) -#endif - -#ifdef CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE -#define _write_unlock_irqrestore(lock, flags) __write_unlock_irqrestore(lock, flags) +#define _raw_spin_unlock_irqrestore(lock, flags) __raw_spin_unlock_irqrestore(lock, flags) #endif -static inline int __spin_trylock(spinlock_t *lock) +static inline int __raw_spin_trylock(raw_spinlock_t *lock) { preempt_disable(); - if (_raw_spin_trylock(lock)) { + if (do_raw_spin_trylock(lock)) { spin_acquire(&lock->dep_map, 0, 1, _RET_IP_); return 1; } @@ -183,28 +94,6 @@ static inline int __spin_trylock(spinlock_t *lock) return 0; } -static inline int __read_trylock(rwlock_t *lock) -{ - preempt_disable(); - if (_raw_read_trylock(lock)) { - rwlock_acquire_read(&lock->dep_map, 0, 1, _RET_IP_); - return 1; - } - preempt_enable(); - return 0; -} - -static inline int __write_trylock(rwlock_t *lock) -{ - preempt_disable(); - if (_raw_write_trylock(lock)) { - rwlock_acquire(&lock->dep_map, 0, 1, _RET_IP_); - return 1; - } - preempt_enable(); - return 0; -} - /* * If lockdep is enabled then we use the non-preemption spin-ops * even on CONFIG_PREEMPT, because lockdep assumes that interrupts are @@ -212,14 +101,7 @@ static inline int __write_trylock(rwlock_t *lock) */ #if !defined(CONFIG_GENERIC_LOCKBREAK) || defined(CONFIG_DEBUG_LOCK_ALLOC) -static inline void __read_lock(rwlock_t *lock) -{ - preempt_disable(); - rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_); - LOCK_CONTENDED(lock, _raw_read_trylock, _raw_read_lock); -} - -static inline unsigned long __spin_lock_irqsave(spinlock_t *lock) +static inline unsigned long __raw_spin_lock_irqsave(raw_spinlock_t *lock) { unsigned long flags; @@ -228,205 +110,79 @@ static inline unsigned long __spin_lock_irqsave(spinlock_t *lock) spin_acquire(&lock->dep_map, 0, 0, _RET_IP_); /* * On lockdep we dont want the hand-coded irq-enable of - * _raw_spin_lock_flags() code, because lockdep assumes + * do_raw_spin_lock_flags() code, because lockdep assumes * that interrupts are not re-enabled during lock-acquire: */ #ifdef CONFIG_LOCKDEP - LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock); + LOCK_CONTENDED(lock, do_raw_spin_trylock, do_raw_spin_lock); #else - _raw_spin_lock_flags(lock, &flags); + do_raw_spin_lock_flags(lock, &flags); #endif return flags; } -static inline void __spin_lock_irq(spinlock_t *lock) +static inline void __raw_spin_lock_irq(raw_spinlock_t *lock) { local_irq_disable(); preempt_disable(); spin_acquire(&lock->dep_map, 0, 0, _RET_IP_); - LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock); + LOCK_CONTENDED(lock, do_raw_spin_trylock, do_raw_spin_lock); } -static inline void __spin_lock_bh(spinlock_t *lock) +static inline void __raw_spin_lock_bh(raw_spinlock_t *lock) { local_bh_disable(); preempt_disable(); spin_acquire(&lock->dep_map, 0, 0, _RET_IP_); - LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock); -} - -static inline unsigned long __read_lock_irqsave(rwlock_t *lock) -{ - unsigned long flags; - - local_irq_save(flags); - preempt_disable(); - rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_); - LOCK_CONTENDED_FLAGS(lock, _raw_read_trylock, _raw_read_lock, - _raw_read_lock_flags, &flags); - return flags; -} - -static inline void __read_lock_irq(rwlock_t *lock) -{ - local_irq_disable(); - preempt_disable(); - rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_); - LOCK_CONTENDED(lock, _raw_read_trylock, _raw_read_lock); -} - -static inline void __read_lock_bh(rwlock_t *lock) -{ - local_bh_disable(); - preempt_disable(); - rwlock_acquire_read(&lock->dep_map, 0, 0, _RET_IP_); - LOCK_CONTENDED(lock, _raw_read_trylock, _raw_read_lock); -} - -static inline unsigned long __write_lock_irqsave(rwlock_t *lock) -{ - unsigned long flags; - - local_irq_save(flags); - preempt_disable(); - rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_); - LOCK_CONTENDED_FLAGS(lock, _raw_write_trylock, _raw_write_lock, - _raw_write_lock_flags, &flags); - return flags; -} - -static inline void __write_lock_irq(rwlock_t *lock) -{ - local_irq_disable(); - preempt_disable(); - rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_); - LOCK_CONTENDED(lock, _raw_write_trylock, _raw_write_lock); + LOCK_CONTENDED(lock, do_raw_spin_trylock, do_raw_spin_lock); } -static inline void __write_lock_bh(rwlock_t *lock) -{ - local_bh_disable(); - preempt_disable(); - rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_); - LOCK_CONTENDED(lock, _raw_write_trylock, _raw_write_lock); -} - -static inline void __spin_lock(spinlock_t *lock) +static inline void __raw_spin_lock(raw_spinlock_t *lock) { preempt_disable(); spin_acquire(&lock->dep_map, 0, 0, _RET_IP_); - LOCK_CONTENDED(lock, _raw_spin_trylock, _raw_spin_lock); -} - -static inline void __write_lock(rwlock_t *lock) -{ - preempt_disable(); - rwlock_acquire(&lock->dep_map, 0, 0, _RET_IP_); - LOCK_CONTENDED(lock, _raw_write_trylock, _raw_write_lock); + LOCK_CONTENDED(lock, do_raw_spin_trylock, do_raw_spin_lock); } #endif /* CONFIG_PREEMPT */ -static inline void __spin_unlock(spinlock_t *lock) +static inline void __raw_spin_unlock(raw_spinlock_t *lock) { spin_release(&lock->dep_map, 1, _RET_IP_); - _raw_spin_unlock(lock); - preempt_enable(); -} - -static inline void __write_unlock(rwlock_t *lock) -{ - rwlock_release(&lock->dep_map, 1, _RET_IP_); - _raw_write_unlock(lock); - preempt_enable(); -} - -static inline void __read_unlock(rwlock_t *lock) -{ - rwlock_release(&lock->dep_map, 1, _RET_IP_); - _raw_read_unlock(lock); + do_raw_spin_unlock(lock); preempt_enable(); } -static inline void __spin_unlock_irqrestore(spinlock_t *lock, +static inline void __raw_spin_unlock_irqrestore(raw_spinlock_t *lock, unsigned long flags) { spin_release(&lock->dep_map, 1, _RET_IP_); - _raw_spin_unlock(lock); + do_raw_spin_unlock(lock); local_irq_restore(flags); preempt_enable(); } -static inline void __spin_unlock_irq(spinlock_t *lock) +static inline void __raw_spin_unlock_irq(raw_spinlock_t *lock) { spin_release(&lock->dep_map, 1, _RET_IP_); - _raw_spin_unlock(lock); + do_raw_spin_unlock(lock); local_irq_enable(); preempt_enable(); } -static inline void __spin_unlock_bh(spinlock_t *lock) +static inline void __raw_spin_unlock_bh(raw_spinlock_t *lock) { spin_release(&lock->dep_map, 1, _RET_IP_); - _raw_spin_unlock(lock); - preempt_enable_no_resched(); - local_bh_enable_ip((unsigned long)__builtin_return_address(0)); -} - -static inline void __read_unlock_irqrestore(rwlock_t *lock, unsigned long flags) -{ - rwlock_release(&lock->dep_map, 1, _RET_IP_); - _raw_read_unlock(lock); - local_irq_restore(flags); - preempt_enable(); -} - -static inline void __read_unlock_irq(rwlock_t *lock) -{ - rwlock_release(&lock->dep_map, 1, _RET_IP_); - _raw_read_unlock(lock); - local_irq_enable(); - preempt_enable(); -} - -static inline void __read_unlock_bh(rwlock_t *lock) -{ - rwlock_release(&lock->dep_map, 1, _RET_IP_); - _raw_read_unlock(lock); + do_raw_spin_unlock(lock); preempt_enable_no_resched(); local_bh_enable_ip((unsigned long)__builtin_return_address(0)); } -static inline void __write_unlock_irqrestore(rwlock_t *lock, - unsigned long flags) -{ - rwlock_release(&lock->dep_map, 1, _RET_IP_); - _raw_write_unlock(lock); - local_irq_restore(flags); - preempt_enable(); -} - -static inline void __write_unlock_irq(rwlock_t *lock) -{ - rwlock_release(&lock->dep_map, 1, _RET_IP_); - _raw_write_unlock(lock); - local_irq_enable(); - preempt_enable(); -} - -static inline void __write_unlock_bh(rwlock_t *lock) -{ - rwlock_release(&lock->dep_map, 1, _RET_IP_); - _raw_write_unlock(lock); - preempt_enable_no_resched(); - local_bh_enable_ip((unsigned long)__builtin_return_address(0)); -} - -static inline int __spin_trylock_bh(spinlock_t *lock) +static inline int __raw_spin_trylock_bh(raw_spinlock_t *lock) { local_bh_disable(); preempt_disable(); - if (_raw_spin_trylock(lock)) { + if (do_raw_spin_trylock(lock)) { spin_acquire(&lock->dep_map, 0, 1, _RET_IP_); return 1; } @@ -435,4 +191,6 @@ static inline int __spin_trylock_bh(spinlock_t *lock) return 0; } +#include <linux/rwlock_api_smp.h> + #endif /* __LINUX_SPINLOCK_API_SMP_H */ |