Lines Matching defs:rw

79 static inline int arch_read_trylock(arch_rwlock_t *rw)
85 	arch_spin_lock(&(rw->lock_mutex));
91 	if (rw->counter > 0) {
92 		rw->counter--;
96 	arch_spin_unlock(&(rw->lock_mutex));
103 static inline int arch_write_trylock(arch_rwlock_t *rw)
109 	arch_spin_lock(&(rw->lock_mutex));
117 	if (rw->counter == __ARCH_RW_LOCK_UNLOCKED__) {
118 		rw->counter = 0;
121 	arch_spin_unlock(&(rw->lock_mutex));
127 static inline void arch_read_lock(arch_rwlock_t *rw)
129 	while (!arch_read_trylock(rw))
133 static inline void arch_write_lock(arch_rwlock_t *rw)
135 	while (!arch_write_trylock(rw))
139 static inline void arch_read_unlock(arch_rwlock_t *rw)
144 	arch_spin_lock(&(rw->lock_mutex));
145 	rw->counter++;
146 	arch_spin_unlock(&(rw->lock_mutex));
150 static inline void arch_write_unlock(arch_rwlock_t *rw)
155 	arch_spin_lock(&(rw->lock_mutex));
156 	rw->counter = __ARCH_RW_LOCK_UNLOCKED__;
157 	arch_spin_unlock(&(rw->lock_mutex));