if legacyPreserved {
			if contextCanceled(ctx) {
				return res, ctx.Err()
			}

			if len(legacyEntries) > 0 {
				// legacy data dir means its old content, honor system umask.
				if err = mkdirAll(legacyDataPath, 0o777, dstVolumeDir); err != nil {
					// any failed mkdir-calls delete them.
					s.deleteFile(dstVolumeDir, legacyDataPath, true, false)