51 	struct dm_dev *origin;  member
178 	return s->origin;  in dm_snap_origin()
316 struct origin {  struct
390 static struct origin *__lookup_origin(struct block_device *origin)  in __lookup_origin()  argument
393 	struct origin *o;  in __lookup_origin()
395 	ol = &_origins[origin_hash(origin)];  in __lookup_origin()
397 		if (bdev_equal(o->bdev, origin))  in __lookup_origin()
403 static void __insert_origin(struct origin *o)  in __insert_origin()
409 static struct dm_origin *__lookup_dm_origin(struct block_device *origin)  in __lookup_dm_origin()  argument
414 	ol = &_dm_origins[origin_hash(origin)];  in __lookup_dm_origin()
416 		if (bdev_equal(o->dev->bdev, origin))  in __lookup_dm_origin()
454 	struct origin *o;  in __find_snapshots_sharing_cow()
458 	o = __lookup_origin(snap->origin->bdev);  in __find_snapshots_sharing_cow()
534 static void __insert_snapshot(struct origin *o, struct dm_snapshot *s)  in __insert_snapshot()
555 	struct origin *o, *new_o = NULL;  in register_snapshot()
556 	struct block_device *bdev = snap->origin->bdev;  in register_snapshot()
598 	struct block_device *bdev = s->origin->bdev;  in reregister_snapshot()
610 	struct origin *o;  in unregister_snapshot()
613 	o = __lookup_origin(s->origin->bdev);  in unregister_snapshot()
855 static uint32_t __minimum_chunk_size(struct origin *o)  in __minimum_chunk_size()
1086 	dest.bdev = s->origin->bdev;  in snapshot_merge_next_chunks()
1135 	bio_set_dev(flush_bio, s->origin->bdev);  in flush_data()
1292 	r = dm_get_device(ti, origin_path, origin_mode, &s->origin);  in snapshot_ctr()
1297 	origin_dev = s->origin->bdev->bd_dev;  in snapshot_ctr()
1436 	dm_put_device(ti, s->origin);  in snapshot_ctr()
1535 	dm_put_device(ti, s->origin);  in snapshot_dtr()
1602 static int do_origin(struct dm_dev *origin, struct bio *bio, bool limit);
1615 		r = do_origin(s->origin, bio, false);  in retry_origin_bios()
1817 	struct block_device *bdev = s->origin->bdev;  in start_copy()
2013 			bio_set_dev(bio, s->origin->bdev);  in snapshot_map()
2112 		bio_set_dev(bio, s->origin->bdev);  in snapshot_map()
2146 			bio_set_dev(bio, s->origin->bdev);  in snapshot_merge_map()
2174 			bio_set_dev(bio, s->origin->bdev);  in snapshot_merge_map()
2188 	bio_set_dev(bio, s->origin->bdev);  in snapshot_merge_map()
2192 		return do_origin(s->origin, bio, false);  in snapshot_merge_map()
2255 	o = __lookup_dm_origin(s->origin->bdev);  in snapshot_resume()
2331 	ti->max_io_len = get_origin_minimum_chunksize(s->origin->bdev);  in snapshot_merge_resume()
2381 		DMEMIT("%s %s", snap->origin->name, snap->cow->name);  in snapshot_status()
2396 		DMEMIT(",snap_origin_name=%s", snap->origin->name);  in snapshot_status()
2412 	r = fn(ti, snap->origin, 0, ti->len, data);  in snapshot_iterate_devices()
2577 static int do_origin(struct dm_dev *origin, struct bio *bio, bool limit)  in do_origin()  argument
2579 	struct origin *o;  in do_origin()
2584 	o = __lookup_origin(origin->bdev);  in do_origin()
2618 	struct origin *o;  in origin_write_extent()
2625 	o = __lookup_origin(merging_snap->origin->bdev);  in origin_write_extent()