55 	struct pthread_spinlock	*lck;  in _pthread_spin_init()  local
60 		lck = aligned_alloc(CACHE_LINE_SIZE,  in _pthread_spin_init()
62 		if (lck == NULL)  in _pthread_spin_init()
64 		*lock = lck;  in _pthread_spin_init()
66 		lck = __thr_pshared_offpage(lock, 1);  in _pthread_spin_init()
67 		if (lck == NULL)  in _pthread_spin_init()
73 	_thr_umutex_init(&lck->s_lock);  in _pthread_spin_init()
101 	struct pthread_spinlock	*lck;  in _pthread_spin_trylock()  local
105 	lck = *lock == THR_PSHARED_PTR ? __thr_pshared_offpage(lock, 0) : *lock;  in _pthread_spin_trylock()
106 	if (lck == NULL)  in _pthread_spin_trylock()
108 	return (THR_UMUTEX_TRYLOCK(_get_curthread(), &lck->s_lock));  in _pthread_spin_trylock()
115 	struct pthread_spinlock	*lck;  in _pthread_spin_lock()  local
120 	lck = *lock == THR_PSHARED_PTR ? __thr_pshared_offpage(lock, 0) : *lock;  in _pthread_spin_lock()
121 	if (lck == NULL)  in _pthread_spin_lock()
126 	while (THR_UMUTEX_TRYLOCK(curthread, &lck->s_lock) != 0) {  in _pthread_spin_lock()
127 		while (lck->s_lock.m_owner) {  in _pthread_spin_lock()
145 	struct pthread_spinlock	*lck;  in _pthread_spin_unlock()  local
149 	lck = *lock == THR_PSHARED_PTR ? __thr_pshared_offpage(lock, 0) : *lock;  in _pthread_spin_unlock()
150 	if (lck == NULL)  in _pthread_spin_unlock()
152 	return (THR_UMUTEX_UNLOCK(_get_curthread(), &lck->s_lock));  in _pthread_spin_unlock()