1141 	struct dm_target *ti;  member
1401 		dm_put_device(era->ti, era->origin_dev);  in era_destroy()
1404 		dm_put_device(era->ti, era->metadata_dev);  in era_destroy()
1411 	return dm_sector_div_up(era->ti->len, era->sectors_per_block);  in calc_nr_blocks()
1425 static int era_ctr(struct dm_target *ti, unsigned argc, char **argv)  in era_ctr()  argument
1433 		ti->error = "Invalid argument count";  in era_ctr()
1439 		ti->error = "Error allocating era structure";  in era_ctr()
1443 	era->ti = ti;  in era_ctr()
1445 	r = dm_get_device(ti, argv[0], FMODE_READ | FMODE_WRITE, &era->metadata_dev);  in era_ctr()
1447 		ti->error = "Error opening metadata device";  in era_ctr()
1452 	r = dm_get_device(ti, argv[1], FMODE_READ | FMODE_WRITE, &era->origin_dev);  in era_ctr()
1454 		ti->error = "Error opening data device";  in era_ctr()
1461 		ti->error = "Error parsing block size";  in era_ctr()
1466 	r = dm_set_target_max_io_len(ti, era->sectors_per_block);  in era_ctr()
1468 		ti->error = "could not set max io len";  in era_ctr()
1474 		ti->error = "Invalid block size";  in era_ctr()
1485 		ti->error = "Error reading metadata";  in era_ctr()
1495 		ti->error = "couldn't resize metadata";  in era_ctr()
1502 		ti->error = "could not create workqueue for metadata object";  in era_ctr()
1514 	ti->private = era;  in era_ctr()
1515 	ti->num_flush_bios = 1;  in era_ctr()
1516 	ti->flush_supported = true;  in era_ctr()
1518 	ti->num_discard_bios = 1;  in era_ctr()
1519 	ti->discards_supported = true;  in era_ctr()
1521 	dm_table_add_target_callbacks(ti->table, &era->callbacks);  in era_ctr()
1526 static void era_dtr(struct dm_target *ti)  in era_dtr()  argument
1528 	era_destroy(ti->private);  in era_dtr()
1531 static int era_map(struct dm_target *ti, struct bio *bio)  in era_map()  argument
1533 	struct era *era = ti->private;  in era_map()
1556 static void era_postsuspend(struct dm_target *ti)  in era_postsuspend()  argument
1559 	struct era *era = ti->private;  in era_postsuspend()
1570 static int era_preresume(struct dm_target *ti)  in era_preresume()  argument
1573 	struct era *era = ti->private;  in era_preresume()
1601 static void era_status(struct dm_target *ti, status_type_t type,  in era_status()  argument
1605 	struct era *era = ti->private;  in era_status()
1642 static int era_message(struct dm_target *ti, unsigned argc, char **argv)  in era_message()  argument
1644 	struct era *era = ti->private;  in era_message()
1669 static int era_iterate_devices(struct dm_target *ti,  in era_iterate_devices()  argument
1672 	struct era *era = ti->private;  in era_iterate_devices()
1673 	return fn(ti, era->origin_dev, 0, get_dev_size(era->origin_dev), data);  in era_iterate_devices()
1676 static int era_merge(struct dm_target *ti, struct bvec_merge_data *bvm,  in era_merge()  argument
1679 	struct era *era = ti->private;  in era_merge()
1690 static void era_io_hints(struct dm_target *ti, struct queue_limits *limits)  in era_io_hints()  argument
1692 	struct era *era = ti->private;  in era_io_hints()