173 static struct instance_tracker instances;  variable
1424 	if (instance >= instances.bit_count) {  in release_instance()
1427 				    instance, instances.bit_count);  in release_instance()
1428 	} else if (test_bit(instance, instances.words) == 0) {  in release_instance()
1431 		__clear_bit(instance, instances.words);  in release_instance()
1432 		instances.count -= 1;  in release_instance()
1532 	unsigned int new_count = max(instances.bit_count + BIT_COUNT_INCREMENT,  in grow_bit_array()
1537 	result = vdo_reallocate_memory(instances.words,  in grow_bit_array()
1538 				       get_bit_array_size(instances.bit_count),  in grow_bit_array()
1544 	instances.bit_count = new_count;  in grow_bit_array()
1545 	instances.words = new_words;  in grow_bit_array()
1563 	if (instances.count >= instances.bit_count) {  in allocate_instance()
1573 	instance = find_next_zero_bit(instances.words, instances.bit_count,  in allocate_instance()
1574 				      instances.next);  in allocate_instance()
1575 	if (instance >= instances.bit_count) {  in allocate_instance()
1577 		instance = find_first_zero_bit(instances.words, instances.bit_count);  in allocate_instance()
1578 		result = VDO_ASSERT(instance < instances.bit_count,  in allocate_instance()
1584 	__set_bit(instance, instances.words);  in allocate_instance()
1585 	instances.count++;  in allocate_instance()
1586 	instances.next = instance + 1;  in allocate_instance()
2884 	VDO_ASSERT_LOG_ONLY(instances.count == 0,  in vdo_module_destroy()
2886 			    instances.count);  in vdo_module_destroy()
2887 	vdo_free(instances.words);  in vdo_module_destroy()
2888 	memset(&instances, 0, sizeof(struct instance_tracker));  in vdo_module_destroy()