19  * + Recovery: during recovery we record the transaction ID of all
36  *   latter: journaling a block cancels any revoke record for that block
98 /* Each revoke record represents one single revoked block.  During
140 	struct jbd2_revoke_record_s *record;  in insert_revoke_hash()  local
145 	record = kmem_cache_alloc(jbd2_revoke_record_cache, gfp_mask);  in insert_revoke_hash()
146 	if (!record)  in insert_revoke_hash()
149 	record->sequence = seq;  in insert_revoke_hash()
150 	record->blocknr = blocknr;  in insert_revoke_hash()
153 	list_add(&record->hash, hash_list);  in insert_revoke_hash()
158 /* Find a revoke record in the journal's hash table. */
164 	struct jbd2_revoke_record_s *record;  in find_revoke_record()  local
169 	record = (struct jbd2_revoke_record_s *) hash_list->next;  in find_revoke_record()
170 	while (&(record->hash) != hash_list) {  in find_revoke_record()
171 		if (record->blocknr == blocknr) {  in find_revoke_record()
173 			return record;  in find_revoke_record()
175 		record = (struct jbd2_revoke_record_s *) record->hash.next;  in find_revoke_record()
364 				 * record against a buffer_head which is  in jbd2_journal_revoke()
425 	struct jbd2_revoke_record_s *record;  in jbd2_journal_cancel_revoke()  local
436 	 * full search for a revoke record. */  in jbd2_journal_cancel_revoke()
445 		record = find_revoke_record(journal, bh->b_blocknr);  in jbd2_journal_cancel_revoke()
446 		if (record) {  in jbd2_journal_cancel_revoke()
450 			list_del(&record->hash);  in jbd2_journal_cancel_revoke()
452 			kmem_cache_free(jbd2_revoke_record_cache, record);  in jbd2_journal_cancel_revoke()
459 	record = find_revoke_record(journal, bh->b_blocknr);  in jbd2_journal_cancel_revoke()
460 	J_ASSERT_JH(jh, record == NULL);  in jbd2_journal_cancel_revoke()
495 			struct jbd2_revoke_record_s *record;  in jbd2_clear_buffer_revoked_flags()  local
497 			record = (struct jbd2_revoke_record_s *)list_entry;  in jbd2_clear_buffer_revoked_flags()
499 					      record->blocknr,  in jbd2_clear_buffer_revoked_flags()
535 	struct jbd2_revoke_record_s *record;  in jbd2_journal_write_revoke_records()  local
552 			record = (struct jbd2_revoke_record_s *)  in jbd2_journal_write_revoke_records()
555 						&descriptor, &offset, record);  in jbd2_journal_write_revoke_records()
557 			list_del(&record->hash);  in jbd2_journal_write_revoke_records()
558 			kmem_cache_free(jbd2_revoke_record_cache, record);  in jbd2_journal_write_revoke_records()
567  * Write out one revoke record.  We need to create a new descriptor
575 				    struct jbd2_revoke_record_s *record)  in write_one_revoke_record()  argument
601 	/* Make sure we have a descriptor with space left for the record */  in write_one_revoke_record()
615 		/* Record it so that we can wait for IO completion later */  in write_one_revoke_record()
625 			cpu_to_be64(record->blocknr);  in write_one_revoke_record()
628 			cpu_to_be32(record->blocknr);  in write_one_revoke_record()
666  *  record all revoke records, including the tid of the latest instance
670  *  (ie. has not been revoked by a revoke record in that or a subsequent
677  * First, setting revoke records.  We create a new revoke record for
687 	struct jbd2_revoke_record_s *record;  in jbd2_journal_set_revoke()  local
689 	record = find_revoke_record(journal, blocknr);  in jbd2_journal_set_revoke()
690 	if (record) {  in jbd2_journal_set_revoke()
691 		/* If we have multiple occurrences, only record the  in jbd2_journal_set_revoke()
692 		 * latest sequence number in the hashed record */  in jbd2_journal_set_revoke()
693 		if (tid_gt(sequence, record->sequence))  in jbd2_journal_set_revoke()
694 			record->sequence = sequence;  in jbd2_journal_set_revoke()
702  * that block been revoked?  A revoke record with a given transaction
711 	struct jbd2_revoke_record_s *record;  in jbd2_journal_test_revoke()  local
713 	record = find_revoke_record(journal, blocknr);  in jbd2_journal_test_revoke()
714 	if (!record)  in jbd2_journal_test_revoke()
716 	if (tid_gt(sequence, record->sequence))  in jbd2_journal_test_revoke()
730 	struct jbd2_revoke_record_s *record;  in jbd2_journal_clear_revoke()  local
738 			record = (struct jbd2_revoke_record_s*) hash_list->next;  in jbd2_journal_clear_revoke()
739 			list_del(&record->hash);  in jbd2_journal_clear_revoke()
740 			kmem_cache_free(jbd2_revoke_record_cache, record);  in jbd2_journal_clear_revoke()