51 	struct dm_dev *origin;  member
173 	return s->origin;  in dm_snap_origin()
311 struct origin {  struct
385 static struct origin *__lookup_origin(struct block_device *origin)  in __lookup_origin()  argument
388 	struct origin *o;  in __lookup_origin()
390 	ol = &_origins[origin_hash(origin)];  in __lookup_origin()
392 		if (bdev_equal(o->bdev, origin))  in __lookup_origin()
398 static void __insert_origin(struct origin *o)  in __insert_origin()
404 static struct dm_origin *__lookup_dm_origin(struct block_device *origin)  in __lookup_dm_origin()  argument
409 	ol = &_dm_origins[origin_hash(origin)];  in __lookup_dm_origin()
411 		if (bdev_equal(o->dev->bdev, origin))  in __lookup_dm_origin()
449 	struct origin *o;  in __find_snapshots_sharing_cow()
453 	o = __lookup_origin(snap->origin->bdev);  in __find_snapshots_sharing_cow()
529 static void __insert_snapshot(struct origin *o, struct dm_snapshot *s)  in __insert_snapshot()
550 	struct origin *o, *new_o = NULL;  in register_snapshot()
551 	struct block_device *bdev = snap->origin->bdev;  in register_snapshot()
593 	struct block_device *bdev = s->origin->bdev;  in reregister_snapshot()
605 	struct origin *o;  in unregister_snapshot()
608 	o = __lookup_origin(s->origin->bdev);  in unregister_snapshot()
849 static uint32_t __minimum_chunk_size(struct origin *o)  in __minimum_chunk_size()
1080 	dest.bdev = s->origin->bdev;  in snapshot_merge_next_chunks()
1270 	r = dm_get_device(ti, origin_path, origin_mode, &s->origin);  in snapshot_ctr()
1275 	origin_dev = s->origin->bdev->bd_dev;  in snapshot_ctr()
1412 	dm_put_device(ti, s->origin);  in snapshot_ctr()
1509 	dm_put_device(ti, s->origin);  in snapshot_dtr()
1576 static int do_origin(struct dm_dev *origin, struct bio *bio, bool limit);
1589 		r = do_origin(s->origin, bio, false);  in retry_origin_bios()
1791 	struct block_device *bdev = s->origin->bdev;  in start_copy()
1987 			bio_set_dev(bio, s->origin->bdev);  in snapshot_map()
2086 		bio_set_dev(bio, s->origin->bdev);  in snapshot_map()
2120 			bio_set_dev(bio, s->origin->bdev);  in snapshot_merge_map()
2148 			bio_set_dev(bio, s->origin->bdev);  in snapshot_merge_map()
2162 	bio_set_dev(bio, s->origin->bdev);  in snapshot_merge_map()
2166 		return do_origin(s->origin, bio, false);  in snapshot_merge_map()
2229 	o = __lookup_dm_origin(s->origin->bdev);  in snapshot_resume()
2305 	ti->max_io_len = get_origin_minimum_chunksize(s->origin->bdev);  in snapshot_merge_resume()
2355 		DMEMIT("%s %s", snap->origin->name, snap->cow->name);  in snapshot_status()
2376 	r = fn(ti, snap->origin, 0, ti->len, data);  in snapshot_iterate_devices()
2541 static int do_origin(struct dm_dev *origin, struct bio *bio, bool limit)  in do_origin()  argument
2543 	struct origin *o;  in do_origin()
2548 	o = __lookup_origin(origin->bdev);  in do_origin()
2582 	struct origin *o;  in origin_write_extent()
2589 	o = __lookup_origin(merging_snap->origin->bdev);  in origin_write_extent()