87 	sem->owner = NULL;  in __init_rwsem()
301 	struct task_struct *owner;  in rwsem_can_spin_on_owner()  local
308 	owner = READ_ONCE(sem->owner);  in rwsem_can_spin_on_owner()
309 	if (!owner) {  in rwsem_can_spin_on_owner()
322 	ret = owner->on_cpu;  in rwsem_can_spin_on_owner()
329 bool rwsem_spin_on_owner(struct rw_semaphore *sem, struct task_struct *owner)  in rwsem_spin_on_owner()  argument
334 	while (sem->owner == owner) {  in rwsem_spin_on_owner()
344 		if (!owner->on_cpu || need_resched()) {  in rwsem_spin_on_owner()
353 	if (READ_ONCE(sem->owner))  in rwsem_spin_on_owner()
367 	struct task_struct *owner;  in rwsem_optimistic_spin()  local
380 		owner = READ_ONCE(sem->owner);  in rwsem_optimistic_spin()
381 		if (owner && !rwsem_spin_on_owner(sem, owner))  in rwsem_optimistic_spin()
396 		if (!owner && (need_resched() || rt_task(current)))  in rwsem_optimistic_spin()