87 	sem->owner = NULL;  in __init_rwsem()
300 	struct task_struct *owner;  in rwsem_can_spin_on_owner()  local
307 	owner = READ_ONCE(sem->owner);  in rwsem_can_spin_on_owner()
308 	if (!owner) {  in rwsem_can_spin_on_owner()
321 	ret = owner->on_cpu;  in rwsem_can_spin_on_owner()
328 bool rwsem_spin_on_owner(struct rw_semaphore *sem, struct task_struct *owner)  in rwsem_spin_on_owner()  argument
333 	while (sem->owner == owner) {  in rwsem_spin_on_owner()
343 		if (!owner->on_cpu || need_resched()) {  in rwsem_spin_on_owner()
352 	if (READ_ONCE(sem->owner))  in rwsem_spin_on_owner()
366 	struct task_struct *owner;  in rwsem_optimistic_spin()  local
379 		owner = READ_ONCE(sem->owner);  in rwsem_optimistic_spin()
380 		if (owner && !rwsem_spin_on_owner(sem, owner))  in rwsem_optimistic_spin()
395 		if (!owner && (need_resched() || rt_task(current)))  in rwsem_optimistic_spin()