385 static void dispatch_io(blk_opf_t opf, unsigned int num_regions,  in dispatch_io()  argument
392 	BUG_ON(num_regions > DM_IO_MAX_REGIONS);  in dispatch_io()
398 	for (i = 0; i < num_regions; i++) {  in dispatch_io()
411 static void async_io(struct dm_io_client *client, unsigned int num_regions,  in async_io()  argument
428 	dispatch_io(opf, num_regions, where, dp, io, ioprio);  in async_io()
444 static int sync_io(struct dm_io_client *client, unsigned int num_regions,  in sync_io()  argument
452 	async_io(client, num_regions, where, opf | REQ_SYNC, dp,  in sync_io()
500 int dm_io(struct dm_io_request *io_req, unsigned int num_regions,  in dm_io()  argument
507 	if (num_regions > 1 && !op_is_write(io_req->bi_opf)) {  in dm_io()
517 		return sync_io(io_req->client, num_regions, where,  in dm_io()
520 	async_io(io_req->client, num_regions, where, io_req->bi_opf, &dp,  in dm_io()