127 static int delay_ctr(struct dm_target *ti, unsigned int argc, char **argv)  in delay_ctr()  argument
134 		ti->error = "requires exactly 3 or 6 arguments";  in delay_ctr()
140 		ti->error = "Cannot allocate context";  in delay_ctr()
147 		ti->error = "Invalid device sector";  in delay_ctr()
153 		ti->error = "Invalid delay";  in delay_ctr()
157 	if (dm_get_device(ti, argv[0], dm_table_get_mode(ti->table),  in delay_ctr()
159 		ti->error = "Device lookup failed";  in delay_ctr()
168 		ti->error = "Invalid write device sector";  in delay_ctr()
174 		ti->error = "Invalid write delay";  in delay_ctr()
178 	if (dm_get_device(ti, argv[3], dm_table_get_mode(ti->table),  in delay_ctr()
180 		ti->error = "Write device lookup failed";  in delay_ctr()
198 	ti->num_flush_bios = 1;  in delay_ctr()
199 	ti->num_discard_bios = 1;  in delay_ctr()
200 	ti->per_bio_data_size = sizeof(struct dm_delay_info);  in delay_ctr()
201 	ti->private = dc;  in delay_ctr()
206 		dm_put_device(ti, dc->dev_write);  in delay_ctr()
208 	dm_put_device(ti, dc->dev_read);  in delay_ctr()
214 static void delay_dtr(struct dm_target *ti)  in delay_dtr()  argument
216 	struct delay_c *dc = ti->private;  in delay_dtr()
220 	dm_put_device(ti, dc->dev_read);  in delay_dtr()
223 		dm_put_device(ti, dc->dev_write);  in delay_dtr()
257 static void delay_presuspend(struct dm_target *ti)  in delay_presuspend()  argument
259 	struct delay_c *dc = ti->private;  in delay_presuspend()
266 static void delay_resume(struct dm_target *ti)  in delay_resume()  argument
268 	struct delay_c *dc = ti->private;  in delay_resume()
273 static int delay_map(struct dm_target *ti, struct bio *bio)  in delay_map()  argument
275 	struct delay_c *dc = ti->private;  in delay_map()
281 				dm_target_offset(ti, bio->bi_iter.bi_sector);  in delay_map()
288 		dm_target_offset(ti, bio->bi_iter.bi_sector);  in delay_map()
293 static void delay_status(struct dm_target *ti, status_type_t type,  in delay_status()  argument
296 	struct delay_c *dc = ti->private;  in delay_status()
316 static int delay_iterate_devices(struct dm_target *ti,  in delay_iterate_devices()  argument
319 	struct delay_c *dc = ti->private;  in delay_iterate_devices()
322 	ret = fn(ti, dc->dev_read, dc->start_read, ti->len, data);  in delay_iterate_devices()
327 		ret = fn(ti, dc->dev_write, dc->start_write, ti->len, data);  in delay_iterate_devices()