22 struct journal_head {  struct
35 	 * [jbd_lock_bh_journal_head()]  argument
37 	int b_jcount;
46 	unsigned b_jlist;
53 	unsigned b_modified;
59 	char *b_frozen_data;
66 	char *b_committed_data;
91 	struct journal_head *b_tnext, *b_tprev;  argument
105 	struct journal_head *b_cpnext, *b_cpprev;  argument
108 	struct jbd2_buffer_trigger_type *b_triggers;
111 	struct jbd2_buffer_trigger_type *b_frozen_triggers;