767 struct journal_s  struct
795 	journal_superblock_t	*j_superblock;  argument
800 	int			j_format_version;
805 	rwlock_t		j_state_lock;
812 	int			j_barrier_count;
817 	struct mutex		j_barrier;
825 	transaction_t		*j_running_transaction;
833 	transaction_t		*j_committing_transaction;
841 	transaction_t		*j_checkpoint_transactions;
849 	wait_queue_head_t	j_wait_transaction_locked;
854 	wait_queue_head_t	j_wait_done_commit;
859 	wait_queue_head_t	j_wait_commit;
864 	wait_queue_head_t	j_wait_updates;
871 	wait_queue_head_t	j_wait_reserved;
878 	wait_queue_head_t	j_fc_wait;
885 	struct mutex		j_checkpoint_mutex;
895 	struct buffer_head	*j_chkpt_bhs[JBD2_NR_BATCH];
903 	unsigned long		j_head;
911 	unsigned long		j_tail;
919 	unsigned long		j_free;
927 	unsigned long		j_first;
935 	unsigned long		j_last;
943 	unsigned long		j_fc_first;
952 	unsigned long		j_fc_off;
960 	unsigned long		j_fc_last;
965 	struct block_device	*j_dev;
970 	int			j_blocksize;
977 	unsigned long long	j_blk_offset;
982 	char			j_devname[BDEVNAME_SIZE+24];
990 	struct block_device	*j_fs_dev;
995 	unsigned int		j_total_len;
1002 	atomic_t		j_reserved_credits;
1007 	spinlock_t		j_list_lock;
1015 	struct inode		*j_inode;
1022 	tid_t			j_tail_sequence;
1029 	tid_t			j_transaction_sequence;
1037 	tid_t			j_commit_sequence;
1045 	tid_t			j_commit_request;
1055 	__u8			j_uuid[16];
1060 	struct task_struct	*j_task;
1068 	int			j_max_transaction_buffers;
1075 	int			j_revoke_records_per_block;
1082 	unsigned long		j_commit_interval;
1087 	struct timer_list	j_commit_timer;
1092 	spinlock_t		j_revoke_lock;
1100 	struct jbd2_revoke_table_s *j_revoke;
1105 	struct jbd2_revoke_table_s *j_revoke_table[2];
1110 	struct buffer_head	**j_wbuf;
1117 	struct buffer_head	**j_fc_wbuf;
1124 	int			j_wbufsize;
1131 	int			j_fc_wbufsize;
1139 	pid_t			j_last_sync_writer;
1147 	u64			j_average_commit_time;
1155 	u32			j_min_batch_time;
1163 	u32			j_max_batch_time;
1170 	void			(*j_commit_callback)(journal_t *,
1180 	int			(*j_submit_inode_data_buffers)
1191 	int			(*j_finish_inode_data_buffers)
1201 	spinlock_t		j_history_lock;
1206 	struct proc_dir_entry	*j_proc_entry;
1211 	struct transaction_stats_s j_stats;
1216 	unsigned int		j_failed_commit;
1224 	void *j_private;
1231 	struct crypto_shash *j_chksum_driver;
1260 	void (*j_fc_cleanup_callback)(struct journal_s *journal, int);  argument
1273 	int (*j_fc_replay_callback)(struct journal_s *journal,  argument