80 static inline void __arch_read_lock(arch_rwlock_t *rw)  in __arch_read_lock()  argument
83 	lp = rw;  in __arch_read_lock()
100 static inline void __arch_read_unlock(arch_rwlock_t *rw)  in __arch_read_unlock()  argument
103 	lp = rw;  in __arch_read_unlock()
120 static inline void arch_write_lock(arch_rwlock_t *rw)  in arch_write_lock()  argument
123 	lp = rw;  in arch_write_lock()
143 static inline int arch_write_trylock(arch_rwlock_t *rw)  in arch_write_trylock()  argument
149 			     : "r" (&rw->lock)  in arch_write_trylock()
153 		val = rw->lock & ~0xff;  in arch_write_trylock()
155 			((volatile u8*)&rw->lock)[3] = 0;  in arch_write_trylock()
157 			*(volatile u32*)&rw->lock = ~0U;  in arch_write_trylock()
163 static inline int __arch_read_trylock(arch_rwlock_t *rw)  in __arch_read_trylock()  argument
167 	lp = rw;  in __arch_read_trylock()
188 #define arch_read_lock_flags(rw, flags)   arch_read_lock(rw)  argument
189 #define arch_write_lock_flags(rw, flags)  arch_write_lock(rw)  argument
195 #define arch_read_can_lock(rw) (!((rw)->lock & 0xff))  argument
196 #define arch_write_can_lock(rw) (!(rw)->lock)  argument