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#ifndef __LINUX_RWLOCK_RT_H
#define __LINUX_RWLOCK_RT_H
#ifndef __LINUX_SPINLOCK_H
#error Do not include directly. Use spinlock.h
#endif
extern void __lockfunc rt_write_lock(rwlock_t *rwlock);
extern void __lockfunc rt_read_lock(rwlock_t *rwlock);
extern int __lockfunc rt_write_trylock(rwlock_t *rwlock);
extern int __lockfunc rt_read_trylock(rwlock_t *rwlock);
extern void __lockfunc rt_write_unlock(rwlock_t *rwlock);
extern void __lockfunc rt_read_unlock(rwlock_t *rwlock);
extern int __lockfunc rt_read_can_lock(rwlock_t *rwlock);
extern int __lockfunc rt_write_can_lock(rwlock_t *rwlock);
extern void __rt_rwlock_init(rwlock_t *rwlock, char *name, struct lock_class_key *key);
#define read_can_lock(rwlock) rt_read_can_lock(rwlock)
#define write_can_lock(rwlock) rt_write_can_lock(rwlock)
#define read_trylock(lock) __cond_lock(lock, rt_read_trylock(lock))
#define write_trylock(lock) __cond_lock(lock, rt_write_trylock(lock))
static inline int __write_trylock_rt_irqsave(rwlock_t *lock, unsigned long *flags)
{
/* XXX ARCH_IRQ_ENABLED */
*flags = 0;
return rt_write_trylock(lock);
}
#define write_trylock_irqsave(lock, flags) \
__cond_lock(lock, __write_trylock_rt_irqsave(lock, &(flags)))
#define read_lock_irqsave(lock, flags) \
do { \
typecheck(unsigned long, flags); \
rt_read_lock(lock); \
flags = 0; \
} while (0)
#define write_lock_irqsave(lock, flags) \
do { \
typecheck(unsigned long, flags); \
rt_write_lock(lock); \
flags = 0; \
} while (0)
#define read_lock(lock) rt_read_lock(lock)
#define read_lock_bh(lock) \
do { \
local_bh_disable(); \
rt_read_lock(lock); \
} while (0)
#define read_lock_irq(lock) read_lock(lock)
#define write_lock(lock) rt_write_lock(lock)
#define write_lock_bh(lock) \
do { \
local_bh_disable(); \
rt_write_lock(lock); \
} while (0)
#define write_lock_irq(lock) write_lock(lock)
#define read_unlock(lock) rt_read_unlock(lock)
#define read_unlock_bh(lock) \
do { \
rt_read_unlock(lock); \
local_bh_enable(); \
} while (0)
#define read_unlock_irq(lock) read_unlock(lock)
#define write_unlock(lock) rt_write_unlock(lock)
#define write_unlock_bh(lock) \
do { \
rt_write_unlock(lock); \
local_bh_enable(); \
} while (0)
#define write_unlock_irq(lock) write_unlock(lock)
#define read_unlock_irqrestore(lock, flags) \
do { \
typecheck(unsigned long, flags); \
(void) flags; \
rt_read_unlock(lock); \
} while (0)
#define write_unlock_irqrestore(lock, flags) \
do { \
typecheck(unsigned long, flags); \
(void) flags; \
rt_write_unlock(lock); \
} while (0)
#define rwlock_init(rwl) \
do { \
static struct lock_class_key __key; \
\
__rt_rwlock_init(rwl, #rwl, &__key); \
} while (0)
/*
* Internal functions made global for CPU pinning
*/
void __read_rt_lock(struct rt_rw_lock *lock);
int __read_rt_trylock(struct rt_rw_lock *lock);
void __write_rt_lock(struct rt_rw_lock *lock);
int __write_rt_trylock(struct rt_rw_lock *lock);
void __read_rt_unlock(struct rt_rw_lock *lock);
void __write_rt_unlock(struct rt_rw_lock *lock);
#endif
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