19 _raw_compare_and_swap(unsigned int *lock, unsigned int old, unsigned int new)  in _raw_compare_and_swap()  argument
21 	return __sync_bool_compare_and_swap(lock, old, new);  in _raw_compare_and_swap()
134 	unsigned int old = ACCESS_ONCE(rw->lock);  in arch_read_trylock_once()  local
135 	return likely((int) old >= 0 &&  in arch_read_trylock_once()
136 		      _raw_compare_and_swap(&rw->lock, old, old + 1));  in arch_read_trylock_once()
141 	unsigned int old = ACCESS_ONCE(rw->lock);  in arch_write_trylock_once()  local
142 	return likely(old == 0 &&  in arch_write_trylock_once()
185 	unsigned int old;  in arch_read_lock()  local
187 	old = __RAW_LOCK(&rw->lock, 1, __RAW_OP_ADD);  in arch_read_lock()
188 	if ((int) old < 0)  in arch_read_lock()
199 	unsigned int old;  in arch_write_lock()  local
201 	old = __RAW_LOCK(&rw->lock, 0x80000000, __RAW_OP_OR);  in arch_write_lock()
202 	if (old != 0)  in arch_write_lock()
203 		_raw_write_lock_wait(rw, old);  in arch_write_lock()
226 	unsigned int old;  in arch_read_unlock()  local
229 		old = ACCESS_ONCE(rw->lock);  in arch_read_unlock()
230 	} while (!_raw_compare_and_swap(&rw->lock, old, old - 1));  in arch_read_unlock()