750 struct journal_s  struct
779 	journal_superblock_t	*j_superblock;  argument
784 	rwlock_t		j_state_lock;
792 	int			j_barrier_count;
797 	struct mutex		j_barrier;
806 	transaction_t		*j_running_transaction;
814 	transaction_t		*j_committing_transaction;
822 	transaction_t		*j_checkpoint_transactions;
830 	wait_queue_head_t	j_wait_transaction_locked;
835 	wait_queue_head_t	j_wait_done_commit;
840 	wait_queue_head_t	j_wait_commit;
845 	wait_queue_head_t	j_wait_updates;
852 	wait_queue_head_t	j_wait_reserved;
859 	wait_queue_head_t	j_fc_wait;
866 	struct mutex		j_checkpoint_mutex;
876 	struct buffer_head	*j_chkpt_bhs[JBD2_NR_BATCH];
884 	struct shrinker		*j_shrinker;
891 	struct percpu_counter	j_checkpoint_jh_count;
899 	transaction_t		*j_shrink_transaction;
907 	unsigned long		j_head;
915 	unsigned long		j_tail;
923 	unsigned long		j_free;
931 	unsigned long		j_first;
939 	unsigned long		j_last;
947 	unsigned long		j_fc_first;
956 	unsigned long		j_fc_off;
964 	unsigned long		j_fc_last;
969 	struct block_device	*j_dev;
974 	int			j_blocksize;
981 	unsigned long long	j_blk_offset;
986 	char			j_devname[BDEVNAME_SIZE+24];
994 	struct block_device	*j_fs_dev;
1001 	errseq_t		j_fs_dev_wb_err;
1006 	unsigned int		j_total_len;
1013 	atomic_t		j_reserved_credits;
1018 	spinlock_t		j_list_lock;
1026 	struct inode		*j_inode;
1033 	tid_t			j_tail_sequence;
1040 	tid_t			j_transaction_sequence;
1048 	tid_t			j_commit_sequence;
1056 	tid_t			j_commit_request;
1066 	__u8			j_uuid[16];
1071 	struct task_struct	*j_task;
1079 	int			j_max_transaction_buffers;
1086 	int			j_revoke_records_per_block;
1093 	int			j_transaction_overhead_buffers;
1100 	unsigned long		j_commit_interval;
1105 	struct timer_list	j_commit_timer;
1110 	spinlock_t		j_revoke_lock;
1118 	struct jbd2_revoke_table_s *j_revoke;
1123 	struct jbd2_revoke_table_s *j_revoke_table[2];
1128 	struct buffer_head	**j_wbuf;
1135 	struct buffer_head	**j_fc_wbuf;
1142 	int			j_wbufsize;
1149 	int			j_fc_wbufsize;
1157 	pid_t			j_last_sync_writer;
1165 	u64			j_average_commit_time;
1173 	u32			j_min_batch_time;
1181 	u32			j_max_batch_time;
1188 	void			(*j_commit_callback)(journal_t *,
1198 	int			(*j_submit_inode_data_buffers)
1209 	int			(*j_finish_inode_data_buffers)
1219 	spinlock_t		j_history_lock;
1224 	struct proc_dir_entry	*j_proc_entry;
1229 	struct transaction_stats_s j_stats;
1234 	unsigned int		j_failed_commit;
1242 	void *j_private;
1271 	void (*j_fc_cleanup_callback)(struct journal_s *journal, int full, tid_t tid);  argument
1284 	int (*j_fc_replay_callback)(struct journal_s *journal,  argument
1295 	int (*j_bmap)(struct journal_s *journal, sector_t *block);  argument