100 *l4( (  fB- x _I|+i#ifndef __LINUX_RWLOCK_API_SMP_H #define __LINUX_RWLOCK_API_SMP_H #ifndef __LINUX_SPINLOCK_API_SMP_H # error "please don't include this file directly" #endif /* * include/linux/rwlock_api_smp.h * * spinlock API declarations on SMP (and debug) * (implemented in kernel/spinlock.c) * * portions Copyright 2005, Red Hat, Inc., Ingo Molnar * Released under the General Public License (GPL). */ void __lockfunc _raw_read_lock(rwlock_t *lock) __acquires(lock); void __lockfunc _raw_write_lock(rwlock_t *lock) __acquires(lock); void __lockfunc _raw_write_lock_nested(rwlock_t *lock, int subclass) __acquires(lock); void __lockfunc _raw_read_lock_bh(rwlock_t *lock) __acquires(lock); void __lockfunc _raw_write_lock_bh(rwlock_t *lock) __acquires(lock); void __lockfunc _raw_read_lock_irq(rwlock_t *lock) __acquires(lock); void __lockfunc _raw_write_lock_irq(rwlock_t *lock) __acquires(lock); unsigned long __lockfunc _raw_read_lock_irqsave(rwlock_t *lock) __acquires(lock); unsigned long __lockfunc _raw_write_lock_irqsave(rwlock_t *lock) __acquires(lock); int __lockfunc _raw_read_trylock(rwlock_t *lock); int __lockfunc _raw_write_trylock(rwlock_t *lock); void __lockfunc _raw_read_unlock(rwlock_t *lock) __releases(lock); void __lockfunc _raw_write_unlock(rwlock_t *lock) __releases(lock); void __lockfunc _raw_read_unlock_bh(rwlock_t *lock) __releases(lock); void __lockfunc _raw_write_unlock_bh(rwlock_t *lock) __releases(lock); void __lockfunc _raw_read_unlock_irq(rwlock_t *lock) __releases(lock); void __lockfunc _raw_write_unlock_irq(rwlock_t *lock) __releases(lock); void __lockfunc _raw_read_unlock_irqrestore(rwlock_t *lock, unsigned long flags) __releases(lock); void __lockfunc _raw_write_unlock_irqrestore(rwlock_t *lock, unsigned long flags) __releases(lock); #ifdef CONFIG_INLINE_READ_LOCK #define _raw_read_lock(lock) __raw_read_lock(lock) #endif #ifdef CONFIG_INLINE_WRITE_LOCK #define _raw_write_lock(lock) __raw_write_lock(lock) #endif #ifdef CONFIG_INLINE_READ_LOCK_BH #define _raw_read_lock_bh(lock) __raw_read_lock_bh(lock) #endif #ifdef CONFIG_INLINE_WRITE_LOCK_BH #define _raw_write_lock_bh(lock) __raw_write_lock_bh(lock) #endif #ifdef CONFIG_INLINE_READ_LOCK_IRQ #define _raw_read_lock_irq(lock) __raw_read_lock_irq(lock) #endif #ifdef CONFIG_INLINE_WRITE_LOCK_IRQ #define _raw_write_lock_irq(lock) __raw_write_lock_irq(lock) #endif #ifdef CONFIG_INLINE_READ_LOCK_IRQSAVE #define _raw_read_lock_irqsave(lock) __raw_read_lock_irqsave(lock) #endif #ifdef CONFIG_INLINE_WRITE_LOCK_IRQSAVE #define _raw_write_lock_irqsave(lock) __raw_write_lock_irqsave(lock) #endif #ifdef CONFIG_INLINE_READ_TRYLOCK #define _raw_read_trylock(lock) __raw_read_trylock(lock) #endif #ifdef CONFIG_INLINE_WRITE_TRYLOCK #define _raw_write_trylock(lock) __raw_write_trylock(lock) #endif #ifdef CONFIG_INLINE_READ_UNLOCK #define _raw_read_unlock(lock) __raw_read_unlock(lock) #endif #ifdef CONFIG_INLINE_WRITE_UNLOCK #define _raw_write_unlock(lock) __raw_write_unlock(lock) #endif #ifdef CONFIG_INLINE_READ_UNLOCK_BH #define _raw_read_unlock_bh(lock) __raw_read_unlock_bh(lock) #endif #ifdef CONFIG_INLINE_WRITE_UNLOCK_BH #define _raw_write_unlock_bh(lock) __raw_write_unlock_bh(lock) #endif #ifdef CONFIG_INLINE_READ_UNLOCK_IRQ #define _raw_read_unlock_irq(lock) __raw_read_unlock_irq(lock) #endif #ifdef CONFIG_INLINE_WRITE_UNLOCK_IRQ #define _raw_write_unlock_irq(lock) __raw_write_unlock_irq(lock) #endif #ifdef CONFIG_INLINE_READ_UNLOCK_IRQRESTORE #define _raw_read_unlock_irqrestore(lock, flags) \ __raw_read_unlock_irqrestore(lock, flags) #endif #ifdef CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE #define _raw_write_unlock_irqrestore(lock, flags) \ __raw_write_unlock_irqrestore(lock, flags) #endif static inline int __raw_read_trylock(rwlock_t *lock) { preempt_disable(); if (do_raw_read_trylock(lock)) { rwlock_acquire_read(&lock->dep_map, 0, 1, _RET_IP_); return 1; } preempt_enable(); return 0; } static inline int __raw_write_trylock(rwlock_t *lock) { preempt_