361 	struct lock_seq_stat *seq;  in get_seq()  local
363 	list_for_each_entry(seq, &ts->seq_list, list) {  in get_seq()
364 		if (seq->addr == addr)  in get_seq()
365 			return seq;  in get_seq()
368 	seq = zalloc(sizeof(struct lock_seq_stat));  in get_seq()
369 	if (!seq) {  in get_seq()
373 	seq->state = SEQ_STATE_UNINITIALIZED;  in get_seq()
374 	seq->addr = addr;  in get_seq()
376 	list_add(&seq->list, &ts->seq_list);  in get_seq()
377 	return seq;  in get_seq()
401 	struct lock_seq_stat *seq;  in report_lock_acquire_event()  local
418 	seq = get_seq(ts, addr);  in report_lock_acquire_event()
419 	if (!seq)  in report_lock_acquire_event()
422 	switch (seq->state) {  in report_lock_acquire_event()
426 			seq->state = SEQ_STATE_ACQUIRING;  in report_lock_acquire_event()
432 			seq->state = SEQ_STATE_READ_ACQUIRED;  in report_lock_acquire_event()
433 			seq->read_count = 1;  in report_lock_acquire_event()
439 			seq->read_count++;  in report_lock_acquire_event()
453 		list_del(&seq->list);  in report_lock_acquire_event()
454 		free(seq);  in report_lock_acquire_event()
462 	seq->prev_event_time = sample->time;  in report_lock_acquire_event()
473 	struct lock_seq_stat *seq;  in report_lock_acquired_event()  local
490 	seq = get_seq(ts, addr);  in report_lock_acquired_event()
491 	if (!seq)  in report_lock_acquired_event()
494 	switch (seq->state) {  in report_lock_acquired_event()
501 		contended_term = sample->time - seq->prev_event_time;  in report_lock_acquired_event()
514 		list_del(&seq->list);  in report_lock_acquired_event()
515 		free(seq);  in report_lock_acquired_event()
522 	seq->state = SEQ_STATE_ACQUIRED;  in report_lock_acquired_event()
525 	seq->prev_event_time = sample->time;  in report_lock_acquired_event()
536 	struct lock_seq_stat *seq;  in report_lock_contended_event()  local
552 	seq = get_seq(ts, addr);  in report_lock_contended_event()
553 	if (!seq)  in report_lock_contended_event()
556 	switch (seq->state) {  in report_lock_contended_event()
569 		list_del(&seq->list);  in report_lock_contended_event()
570 		free(seq);  in report_lock_contended_event()
577 	seq->state = SEQ_STATE_CONTENDED;  in report_lock_contended_event()
580 	seq->prev_event_time = sample->time;  in report_lock_contended_event()
591 	struct lock_seq_stat *seq;  in report_lock_release_event()  local
607 	seq = get_seq(ts, addr);  in report_lock_release_event()
608 	if (!seq)  in report_lock_release_event()
611 	switch (seq->state) {  in report_lock_release_event()
617 		seq->read_count--;  in report_lock_release_event()
618 		BUG_ON(seq->read_count < 0);  in report_lock_release_event()
619 		if (!seq->read_count) {  in report_lock_release_event()
638 	list_del(&seq->list);  in report_lock_release_event()
639 	free(seq);  in report_lock_release_event()