37 	      struct optimistic_spin_node *node,  in osq_wait_next()  argument
72 		if (node->next) {  in osq_wait_next()
73 			next = xchg(&node->next, NULL);  in osq_wait_next()
86 	struct optimistic_spin_node *node = this_cpu_ptr(&osq_node);  in osq_lock()  local
91 	node->locked = 0;  in osq_lock()
92 	node->next = NULL;  in osq_lock()
93 	node->cpu = curr;  in osq_lock()
100 	node->prev = prev;  in osq_lock()
101 	WRITE_ONCE(prev->next, node);  in osq_lock()
112 	while (!READ_ONCE(node->locked)) {  in osq_lock()
133 		if (prev->next == node &&  in osq_lock()
134 		    cmpxchg(&prev->next, node, NULL) == node)  in osq_lock()
142 		if (smp_load_acquire(&node->locked))  in osq_lock()
151 		prev = READ_ONCE(node->prev);  in osq_lock()
161 	next = osq_wait_next(lock, node, prev);  in osq_lock()
181 	struct optimistic_spin_node *node, *next;  in osq_unlock()  local
193 	node = this_cpu_ptr(&osq_node);  in osq_unlock()
194 	next = xchg(&node->next, NULL);  in osq_unlock()
200 	next = osq_wait_next(lock, node, NULL);  in osq_unlock()