418 					struct dm_snapshot **snap_dest,  in __find_snapshots_sharing_cow()  argument
443 		} else if (snap_dest)  in __find_snapshots_sharing_cow()
444 			*snap_dest = s;  in __find_snapshots_sharing_cow()
459 	struct dm_snapshot *snap_src = NULL, *snap_dest = NULL;  in __validate_exception_handover()  local
463 	if ((__find_snapshots_sharing_cow(snap, &snap_src, &snap_dest,  in __validate_exception_handover()
465 	    snap_dest) {  in __validate_exception_handover()
1281 				  struct dm_snapshot *snap_dest)  in __handover_exceptions()  argument
1291 	u.table_swap = snap_dest->complete;  in __handover_exceptions()
1292 	snap_dest->complete = snap_src->complete;  in __handover_exceptions()
1295 	u.store_swap = snap_dest->store;  in __handover_exceptions()
1296 	snap_dest->store = snap_src->store;  in __handover_exceptions()
1299 	snap_dest->store->snap = snap_dest;  in __handover_exceptions()
1302 	snap_dest->ti->max_io_len = snap_dest->store->chunk_size;  in __handover_exceptions()
1303 	snap_dest->valid = snap_src->valid;  in __handover_exceptions()
1317 	struct dm_snapshot *snap_src = NULL, *snap_dest = NULL;  in snapshot_dtr()  local
1321 	(void) __find_snapshots_sharing_cow(s, &snap_src, &snap_dest, NULL);  in snapshot_dtr()
1322 	if (snap_src && snap_dest && (s == snap_src)) {  in snapshot_dtr()
1323 		down_write(&snap_dest->lock);  in snapshot_dtr()
1324 		snap_dest->valid = 0;  in snapshot_dtr()
1325 		up_write(&snap_dest->lock);  in snapshot_dtr()
1856 	struct dm_snapshot *snap_src = NULL, *snap_dest = NULL;  in snapshot_preresume()  local
1859 	(void) __find_snapshots_sharing_cow(s, &snap_src, &snap_dest, NULL);  in snapshot_preresume()
1860 	if (snap_src && snap_dest) {  in snapshot_preresume()
1881 	struct dm_snapshot *snap_src = NULL, *snap_dest = NULL, *snap_merging = NULL;  in snapshot_resume()  local
1915 	(void) __find_snapshots_sharing_cow(s, &snap_src, &snap_dest, NULL);  in snapshot_resume()
1916 	if (snap_src && snap_dest) {  in snapshot_resume()
1918 		down_write_nested(&snap_dest->lock, SINGLE_DEPTH_NESTING);  in snapshot_resume()
1919 		__handover_exceptions(snap_src, snap_dest);  in snapshot_resume()
1920 		up_write(&snap_dest->lock);  in snapshot_resume()