676 static void *jbd2_history_skip_empty(struct jbd2_stats_proc_session *s,  in jbd2_history_skip_empty()  argument
680 	if (ts == s->stats + s->max)  in jbd2_history_skip_empty()
681 		ts = s->stats;  in jbd2_history_skip_empty()
682 	if (!first && ts == s->stats + s->start)  in jbd2_history_skip_empty()
686 		if (ts == s->stats + s->max)  in jbd2_history_skip_empty()
687 			ts = s->stats;  in jbd2_history_skip_empty()
688 		if (ts == s->stats + s->start)  in jbd2_history_skip_empty()
697 	struct jbd2_stats_proc_session *s = seq->private;  in jbd2_seq_history_start()  local
703 	ts = jbd2_history_skip_empty(s, s->stats + s->start, 1);  in jbd2_seq_history_start()
708 		ts = jbd2_history_skip_empty(s, ++ts, 0);  in jbd2_seq_history_start()
718 	struct jbd2_stats_proc_session *s = seq->private;  in jbd2_seq_history_next()  local
723 		return jbd2_history_skip_empty(s, s->stats + s->start, 1);  in jbd2_seq_history_next()
725 		return jbd2_history_skip_empty(s, ++ts, 0);  in jbd2_seq_history_next()
775 	struct jbd2_stats_proc_session *s;  in jbd2_seq_history_open()  local
778 	s = kmalloc(sizeof(*s), GFP_KERNEL);  in jbd2_seq_history_open()
779 	if (s == NULL)  in jbd2_seq_history_open()
782 	s->stats = kmalloc(size, GFP_KERNEL);  in jbd2_seq_history_open()
783 	if (s->stats == NULL) {  in jbd2_seq_history_open()
784 		kfree(s);  in jbd2_seq_history_open()
788 	memcpy(s->stats, journal->j_history, size);  in jbd2_seq_history_open()
789 	s->max = journal->j_history_max;  in jbd2_seq_history_open()
790 	s->start = journal->j_history_cur % s->max;  in jbd2_seq_history_open()
796 		m->private = s;  in jbd2_seq_history_open()
798 		kfree(s->stats);  in jbd2_seq_history_open()
799 		kfree(s);  in jbd2_seq_history_open()
808 	struct jbd2_stats_proc_session *s = seq->private;  in jbd2_seq_history_release()  local
810 	kfree(s->stats);  in jbd2_seq_history_release()
811 	kfree(s);  in jbd2_seq_history_release()
835 	struct jbd2_stats_proc_session *s = seq->private;  in jbd2_seq_info_show()  local
840 			s->stats->ts_tid,  in jbd2_seq_info_show()
841 			s->journal->j_max_transaction_buffers);  in jbd2_seq_info_show()
842 	if (s->stats->ts_tid == 0)  in jbd2_seq_info_show()
845 	    jiffies_to_msecs(s->stats->u.run.rs_wait / s->stats->ts_tid));  in jbd2_seq_info_show()
847 	    jiffies_to_msecs(s->stats->u.run.rs_running / s->stats->ts_tid));  in jbd2_seq_info_show()
849 	    jiffies_to_msecs(s->stats->u.run.rs_locked / s->stats->ts_tid));  in jbd2_seq_info_show()
851 	    jiffies_to_msecs(s->stats->u.run.rs_flushing / s->stats->ts_tid));  in jbd2_seq_info_show()
853 	    jiffies_to_msecs(s->stats->u.run.rs_logging / s->stats->ts_tid));  in jbd2_seq_info_show()
855 		   div_u64(s->journal->j_average_commit_time, 1000));  in jbd2_seq_info_show()
857 	    s->stats->u.run.rs_handle_count / s->stats->ts_tid);  in jbd2_seq_info_show()
859 	    s->stats->u.run.rs_blocks / s->stats->ts_tid);  in jbd2_seq_info_show()
861 	    s->stats->u.run.rs_blocks_logged / s->stats->ts_tid);  in jbd2_seq_info_show()
879 	struct jbd2_stats_proc_session *s;  in jbd2_seq_info_open()  local
882 	s = kmalloc(sizeof(*s), GFP_KERNEL);  in jbd2_seq_info_open()
883 	if (s == NULL)  in jbd2_seq_info_open()
886 	s->stats = kmalloc(size, GFP_KERNEL);  in jbd2_seq_info_open()
887 	if (s->stats == NULL) {  in jbd2_seq_info_open()
888 		kfree(s);  in jbd2_seq_info_open()
892 	memcpy(s->stats, &journal->j_stats, size);  in jbd2_seq_info_open()
893 	s->journal = journal;  in jbd2_seq_info_open()
899 		m->private = s;  in jbd2_seq_info_open()
901 		kfree(s->stats);  in jbd2_seq_info_open()
902 		kfree(s);  in jbd2_seq_info_open()
911 	struct jbd2_stats_proc_session *s = seq->private;  in jbd2_seq_info_release()  local
912 	kfree(s->stats);  in jbd2_seq_info_release()
913 	kfree(s);  in jbd2_seq_info_release()