52 	struct dm_dev *origin;  member
153 	return s->origin;  in dm_snap_origin()
292 struct origin {  struct
365 static struct origin *__lookup_origin(struct block_device *origin)  in __lookup_origin()  argument
368 	struct origin *o;  in __lookup_origin()
370 	ol = &_origins[origin_hash(origin)];  in __lookup_origin()
372 		if (bdev_equal(o->bdev, origin))  in __lookup_origin()
378 static void __insert_origin(struct origin *o)  in __insert_origin()
384 static struct dm_origin *__lookup_dm_origin(struct block_device *origin)  in __lookup_dm_origin()  argument
389 	ol = &_dm_origins[origin_hash(origin)];  in __lookup_dm_origin()
391 		if (bdev_equal(o->dev->bdev, origin))  in __lookup_dm_origin()
429 	struct origin *o;  in __find_snapshots_sharing_cow()
433 	o = __lookup_origin(snap->origin->bdev);  in __find_snapshots_sharing_cow()
509 static void __insert_snapshot(struct origin *o, struct dm_snapshot *s)  in __insert_snapshot()
530 	struct origin *o, *new_o = NULL;  in register_snapshot()
531 	struct block_device *bdev = snap->origin->bdev;  in register_snapshot()
573 	struct block_device *bdev = s->origin->bdev;  in reregister_snapshot()
585 	struct origin *o;  in unregister_snapshot()
588 	o = __lookup_origin(s->origin->bdev);  in unregister_snapshot()
773 static uint32_t __minimum_chunk_size(struct origin *o)  in __minimum_chunk_size()
1004 	dest.bdev = s->origin->bdev;  in snapshot_merge_next_chunks()
1135 	r = dm_get_device(ti, origin_path, origin_mode, &s->origin);  in snapshot_ctr()
1140 	origin_dev = s->origin->bdev->bd_dev;  in snapshot_ctr()
1279 	dm_put_device(ti, s->origin);  in snapshot_ctr()
1377 	dm_put_device(ti, s->origin);  in snapshot_dtr()
1397 static int do_origin(struct dm_dev *origin, struct bio *bio);
1410 		r = do_origin(s->origin, bio);  in retry_origin_bios()
1575 	struct block_device *bdev = s->origin->bdev;  in start_copy()
1775 		bio->bi_bdev = s->origin->bdev;  in snapshot_map()
1808 			bio->bi_bdev = s->origin->bdev;  in snapshot_merge_map()
1830 			bio->bi_bdev = s->origin->bdev;  in snapshot_merge_map()
1844 	bio->bi_bdev = s->origin->bdev;  in snapshot_merge_map()
1848 		return do_origin(s->origin, bio);  in snapshot_merge_map()
1910 	o = __lookup_dm_origin(s->origin->bdev);  in snapshot_resume()
1986 	ti->max_io_len = get_origin_minimum_chunksize(s->origin->bdev);  in snapshot_merge_resume()
2035 		DMEMIT("%s %s", snap->origin->name, snap->cow->name);  in snapshot_status()
2048 	r = fn(ti, snap->origin, 0, ti->len, data);  in snapshot_iterate_devices()
2184 static int do_origin(struct dm_dev *origin, struct bio *bio)  in do_origin()  argument
2186 	struct origin *o;  in do_origin()
2190 	o = __lookup_origin(origin->bdev);  in do_origin()
2216 	struct origin *o;  in origin_write_extent()
2223 	o = __lookup_origin(merging_snap->origin->bdev);  in origin_write_extent()