75 	struct buffer_head *bh;  in do_readahead()  local
98 		bh = __getblk(journal->j_dev, blocknr, journal->j_blocksize);  in do_readahead()
99 		if (!bh) {  in do_readahead()
104 		if (!buffer_uptodate(bh) && !buffer_locked(bh)) {  in do_readahead()
105 			bufs[nbufs++] = bh;  in do_readahead()
112 			brelse(bh);  in do_readahead()
137 	struct buffer_head *bh;  in jread()  local
154 	bh = __getblk(journal->j_dev, blocknr, journal->j_blocksize);  in jread()
155 	if (!bh)  in jread()
158 	if (!buffer_uptodate(bh)) {  in jread()
161 		if (!buffer_req(bh))  in jread()
163 		wait_on_buffer(bh);  in jread()
166 	if (!buffer_uptodate(bh)) {  in jread()
169 		brelse(bh);  in jread()
173 	*bhp = bh;  in jread()
201 static int count_tags(journal_t *journal, struct buffer_head *bh)  in count_tags()  argument
211 	tagp = &bh->b_data[sizeof(journal_header_t)];  in count_tags()
213 	while ((tagp - bh->b_data + tag_bytes) <= size) {  in count_tags()
354 static int calc_chksums(journal_t *journal, struct buffer_head *bh,  in calc_chksums()  argument
361 	num_blks = count_tags(journal, bh);  in calc_chksums()
363 	*crc32_sum = crc32_be(*crc32_sum, (void *)bh->b_data, bh->b_size);  in calc_chksums()
428 	struct buffer_head *	bh;  in do_one_pass()  local
484 		err = jread(&bh, journal, next_log_block);  in do_one_pass()
497 		tmp = (journal_header_t *)bh->b_data;  in do_one_pass()
500 			brelse(bh);  in do_one_pass()
510 			brelse(bh);  in do_one_pass()
526 							  bh->b_data)) {  in do_one_pass()
531 				brelse(bh);  in do_one_pass()
543 					if (calc_chksums(journal, bh,  in do_one_pass()
546 						put_bh(bh);  in do_one_pass()
549 					put_bh(bh);  in do_one_pass()
552 				next_log_block += count_tags(journal, bh);  in do_one_pass()
554 				put_bh(bh);  in do_one_pass()
562 			tagp = &bh->b_data[sizeof(journal_header_t)];  in do_one_pass()
563 			while ((tagp - bh->b_data + tag_bytes)  in do_one_pass()
623 						brelse(bh);  in do_one_pass()
656 			brelse(bh);  in do_one_pass()
699 					(struct commit_header *)bh->b_data;  in do_one_pass()
708 					brelse(bh);  in do_one_pass()
739 						brelse(bh);  in do_one_pass()
747 							   bh->b_data)) {  in do_one_pass()
753 					brelse(bh);  in do_one_pass()
757 			brelse(bh);  in do_one_pass()
765 				brelse(bh);  in do_one_pass()
769 			err = scan_revoke_records(journal, bh,  in do_one_pass()
771 			brelse(bh);  in do_one_pass()
779 			brelse(bh);  in do_one_pass()
836 static int scan_revoke_records(journal_t *journal, struct buffer_head *bh,  in scan_revoke_records()  argument
845 	header = (jbd2_journal_revoke_header_t *) bh->b_data;  in scan_revoke_records()
866 			blocknr = be32_to_cpu(* ((__be32 *) (bh->b_data+offset)));  in scan_revoke_records()
868 			blocknr = be64_to_cpu(* ((__be64 *) (bh->b_data+offset)));  in scan_revoke_records()