662 	int (*step)(struct era_metadata *, struct digest *);  member
681 	d->step = metadata_digest_lookup_writeset;  in metadata_digest_remove_writeset()
714 		d->step = metadata_digest_remove_writeset;  in metadata_digest_transcribe_writeset()
739 			d->step = NULL;  in metadata_digest_lookup_writeset()
752 	d->step = metadata_digest_transcribe_writeset;  in metadata_digest_lookup_writeset()
759 	if (d->step)  in metadata_digest_start()
769 	d->step = metadata_digest_lookup_writeset;  in metadata_digest_start()
1213 	if (!era->digest.step)  in process_old_eras()
1216 	r = era->digest.step(era->md, &era->digest);  in process_old_eras()
1219 		era->digest.step = NULL;  in process_old_eras()
1221 	} else if (era->digest.step)  in process_old_eras()