200 	int r;  in bl_down_read()  local
204 	r = __check_holder(lock);  in bl_down_read()
205 	if (r) {  in bl_down_read()
207 		return r;  in bl_down_read()
231 	int r;  in bl_down_read_nonblock()  local
234 	r = __check_holder(lock);  in bl_down_read_nonblock()
235 	if (r)  in bl_down_read_nonblock()
241 		r = 0;  in bl_down_read_nonblock()
243 		r = -EWOULDBLOCK;  in bl_down_read_nonblock()
247 	return r;  in bl_down_read_nonblock()
263 	int r;  in bl_down_write()  local
267 	r = __check_holder(lock);  in bl_down_write()
268 	if (r) {  in bl_down_write()
270 		return r;  in bl_down_write()
307 static void report_recursive_bug(dm_block_t b, int r)  in report_recursive_bug()  argument
309 	if (r == -EINVAL)  in report_recursive_bug()
375 	int r;  in dm_block_manager_create()  local
380 		r = -ENOMEM;  in dm_block_manager_create()
389 		r = PTR_ERR(bm->bufio);  in dm_block_manager_create()
399 	return ERR_PTR(r);  in dm_block_manager_create()
427 		int r;  in dm_bm_validate_buffer()  local
430 		r = v->check(v, (struct dm_block *) buf, dm_bufio_get_block_size(bm->bufio));  in dm_bm_validate_buffer()
431 		if (unlikely(r)) {  in dm_bm_validate_buffer()
434 			return r;  in dm_bm_validate_buffer()
454 	int r;  in dm_bm_read_lock()  local
461 	r = bl_down_read(&aux->lock);  in dm_bm_read_lock()
462 	if (unlikely(r)) {  in dm_bm_read_lock()
464 		report_recursive_bug(b, r);  in dm_bm_read_lock()
465 		return r;  in dm_bm_read_lock()
470 	r = dm_bm_validate_buffer(bm, to_buffer(*result), aux, v);  in dm_bm_read_lock()
471 	if (unlikely(r)) {  in dm_bm_read_lock()
474 		return r;  in dm_bm_read_lock()
487 	int r;  in dm_bm_write_lock()  local
497 	r = bl_down_write(&aux->lock);  in dm_bm_write_lock()
498 	if (r) {  in dm_bm_write_lock()
500 		report_recursive_bug(b, r);  in dm_bm_write_lock()
501 		return r;  in dm_bm_write_lock()
506 	r = dm_bm_validate_buffer(bm, to_buffer(*result), aux, v);  in dm_bm_write_lock()
507 	if (unlikely(r)) {  in dm_bm_write_lock()
510 		return r;  in dm_bm_write_lock()
523 	int r;  in dm_bm_read_try_lock()  local
532 	r = bl_down_read_nonblock(&aux->lock);  in dm_bm_read_try_lock()
533 	if (r < 0) {  in dm_bm_read_try_lock()
535 		report_recursive_bug(b, r);  in dm_bm_read_try_lock()
536 		return r;  in dm_bm_read_try_lock()
540 	r = dm_bm_validate_buffer(bm, to_buffer(*result), aux, v);  in dm_bm_read_try_lock()
541 	if (unlikely(r)) {  in dm_bm_read_try_lock()
544 		return r;  in dm_bm_read_try_lock()
554 	int r;  in dm_bm_write_lock_zero()  local
568 	r = bl_down_write(&aux->lock);  in dm_bm_write_lock_zero()
569 	if (r) {  in dm_bm_write_lock_zero()
571 		return r;  in dm_bm_write_lock_zero()