128 static int delay_ctr(struct dm_target *ti, unsigned int argc, char **argv)  in delay_ctr()  argument
136 		ti->error = "Requires exactly 3 or 6 arguments";  in delay_ctr()
142 		ti->error = "Cannot allocate context";  in delay_ctr()
150 		ti->error = "Invalid device sector";  in delay_ctr()
156 		ti->error = "Invalid delay";  in delay_ctr()
160 	ret = dm_get_device(ti, argv[0], dm_table_get_mode(ti->table),  in delay_ctr()
163 		ti->error = "Device lookup failed";  in delay_ctr()
173 		ti->error = "Invalid write device sector";  in delay_ctr()
179 		ti->error = "Invalid write delay";  in delay_ctr()
183 	ret = dm_get_device(ti, argv[3], dm_table_get_mode(ti->table),  in delay_ctr()
186 		ti->error = "Write device lookup failed";  in delay_ctr()
205 	ti->num_flush_bios = 1;  in delay_ctr()
206 	ti->num_discard_bios = 1;  in delay_ctr()
207 	ti->per_bio_data_size = sizeof(struct dm_delay_info);  in delay_ctr()
208 	ti->private = dc;  in delay_ctr()
213 		dm_put_device(ti, dc->dev_write);  in delay_ctr()
215 	dm_put_device(ti, dc->dev_read);  in delay_ctr()
221 static void delay_dtr(struct dm_target *ti)  in delay_dtr()  argument
223 	struct delay_c *dc = ti->private;  in delay_dtr()
227 	dm_put_device(ti, dc->dev_read);  in delay_dtr()
230 		dm_put_device(ti, dc->dev_write);  in delay_dtr()
264 static void delay_presuspend(struct dm_target *ti)  in delay_presuspend()  argument
266 	struct delay_c *dc = ti->private;  in delay_presuspend()
273 static void delay_resume(struct dm_target *ti)  in delay_resume()  argument
275 	struct delay_c *dc = ti->private;  in delay_resume()
280 static int delay_map(struct dm_target *ti, struct bio *bio)  in delay_map()  argument
282 	struct delay_c *dc = ti->private;  in delay_map()
288 				dm_target_offset(ti, bio->bi_iter.bi_sector);  in delay_map()
295 		dm_target_offset(ti, bio->bi_iter.bi_sector);  in delay_map()
300 static void delay_status(struct dm_target *ti, status_type_t type,  in delay_status()  argument
303 	struct delay_c *dc = ti->private;  in delay_status()
323 static int delay_iterate_devices(struct dm_target *ti,  in delay_iterate_devices()  argument
326 	struct delay_c *dc = ti->private;  in delay_iterate_devices()
329 	ret = fn(ti, dc->dev_read, dc->start_read, ti->len, data);  in delay_iterate_devices()
334 		ret = fn(ti, dc->dev_write, dc->start_write, ti->len, data);  in delay_iterate_devices()