655 struct digest {  struct
662 	int (*step)(struct era_metadata *, struct digest *);  argument
666 					   struct digest *d);
669 					   struct digest *d)  in metadata_digest_remove_writeset()
688 					       struct digest *d)  in metadata_digest_transcribe_writeset()
722 					   struct digest *d)  in metadata_digest_lookup_writeset()
757 static int metadata_digest_start(struct era_metadata *md, struct digest *d)  in metadata_digest_start()
1160 	struct digest digest;  member
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()
1304 		metadata_digest_start(era->md, &era->digest);  in kick_off_digest()