45 	atomic_long_set(&lock->owner, 0);  in __mutex_init()
78 	return (struct task_struct *)(atomic_long_read(&lock->owner) & ~MUTEX_FLAGS);  in __mutex_owner()
81 static inline struct task_struct *__owner_task(unsigned long owner)  in __owner_task()  argument
83 	return (struct task_struct *)(owner & ~MUTEX_FLAGS);  in __owner_task()
92 static inline unsigned long __owner_flags(unsigned long owner)  in __owner_flags()  argument
94 	return owner & MUTEX_FLAGS;  in __owner_flags()
99 	unsigned long owner, curr = (unsigned long)current;  in __mutex_trylock_common()  local
101 	owner = atomic_long_read(&lock->owner);  in __mutex_trylock_common()
103 		unsigned long flags = __owner_flags(owner);  in __mutex_trylock_common()
104 		unsigned long task = owner & ~MUTEX_FLAGS;  in __mutex_trylock_common()
123 		if (atomic_long_try_cmpxchg_acquire(&lock->owner, &owner, task | flags)) {  in __mutex_trylock_common()
130 	return __owner_task(owner);  in __mutex_trylock_common()
165 	if (atomic_long_try_cmpxchg_acquire(&lock->owner, &zero, curr))  in __mutex_trylock_fast()
175 	return atomic_long_try_cmpxchg_release(&lock->owner, &curr, 0UL);  in __mutex_unlock_fast()
181 	atomic_long_or(flag, &lock->owner);  in __mutex_set_flag()
186 	atomic_long_andnot(flag, &lock->owner);  in __mutex_clear_flag()
227 	unsigned long owner = atomic_long_read(&lock->owner);  in __mutex_handoff()  local
232 		MUTEX_WARN_ON(__owner_task(owner) != current);  in __mutex_handoff()
233 		MUTEX_WARN_ON(owner & MUTEX_FLAG_PICKUP);  in __mutex_handoff()
235 		new = (owner & MUTEX_FLAG_WAITERS);  in __mutex_handoff()
240 		if (atomic_long_try_cmpxchg_release(&lock->owner, &owner, new))  in __mutex_handoff()
326 	if (!waiter && (atomic_long_read(&lock->owner) & MUTEX_FLAG_WAITERS))  in ww_mutex_spin_on_owner()
346 bool mutex_spin_on_owner(struct mutex *lock, struct task_struct *owner,  in mutex_spin_on_owner()  argument
352 	while (__mutex_owner(lock) == owner) {  in mutex_spin_on_owner()
364 		if (!owner->on_cpu || need_resched() ||  in mutex_spin_on_owner()
365 				vcpu_is_preempted(task_cpu(owner))) {  in mutex_spin_on_owner()
387 	struct task_struct *owner;  in mutex_can_spin_on_owner()  local
394 	owner = __mutex_owner(lock);  in mutex_can_spin_on_owner()
400 	if (owner)  in mutex_can_spin_on_owner()
401 		retval = owner->on_cpu && !vcpu_is_preempted(task_cpu(owner));  in mutex_can_spin_on_owner()
458 		struct task_struct *owner;  in mutex_optimistic_spin()  local
461 		owner = __mutex_trylock_or_owner(lock);  in mutex_optimistic_spin()
462 		if (!owner)  in mutex_optimistic_spin()
469 		if (!mutex_spin_on_owner(lock, owner, ww_ctx, waiter))  in mutex_optimistic_spin()
849 	unsigned long owner;  in __mutex_unlock_slowpath()  local
860 	owner = atomic_long_read(&lock->owner);  in __mutex_unlock_slowpath()
862 		MUTEX_WARN_ON(__owner_task(owner) != current);  in __mutex_unlock_slowpath()
863 		MUTEX_WARN_ON(owner & MUTEX_FLAG_PICKUP);  in __mutex_unlock_slowpath()
865 		if (owner & MUTEX_FLAG_HANDOFF)  in __mutex_unlock_slowpath()
868 		if (atomic_long_try_cmpxchg_release(&lock->owner, &owner, __owner_flags(owner))) {  in __mutex_unlock_slowpath()
869 			if (owner & MUTEX_FLAG_WAITERS)  in __mutex_unlock_slowpath()
890 	if (owner & MUTEX_FLAG_HANDOFF)  in __mutex_unlock_slowpath()