299 		struct sem_undo *suptr = SEMU(i);  in seminit()  local
300 		suptr->un_proc = NULL;  in seminit()
301 		LIST_INSERT_HEAD(&semu_free_list, suptr, un_next);  in seminit()
412 	struct sem_undo *suptr;  in semu_alloc()  local
415 	if ((suptr = LIST_FIRST(&semu_free_list)) == NULL)  in semu_alloc()
417 	LIST_REMOVE(suptr, un_next);  in semu_alloc()
418 	LIST_INSERT_HEAD(&semu_list, suptr, un_next);  in semu_alloc()
419 	suptr->un_cnt = 0;  in semu_alloc()
420 	suptr->un_proc = td->td_proc;  in semu_alloc()
421 	return (suptr);  in semu_alloc()
425 semu_try_free(struct sem_undo *suptr)  in semu_try_free()  argument
430 	if (suptr->un_cnt != 0)  in semu_try_free()
432 	LIST_REMOVE(suptr, un_next);  in semu_try_free()
433 	LIST_INSERT_HEAD(&semu_free_list, suptr, un_next);  in semu_try_free()
446 	struct sem_undo *suptr;  in semundo_adjust()  local
454 	suptr = *supptr;  in semundo_adjust()
455 	if (suptr == NULL) {  in semundo_adjust()
456 		LIST_FOREACH(suptr, &semu_list, un_next) {  in semundo_adjust()
457 			if (suptr->un_proc == p) {  in semundo_adjust()
458 				*supptr = suptr;  in semundo_adjust()
462 		if (suptr == NULL) {  in semundo_adjust()
465 			suptr = semu_alloc(td);  in semundo_adjust()
466 			if (suptr == NULL)  in semundo_adjust()
468 			*supptr = suptr;  in semundo_adjust()
476 	sunptr = &suptr->un_ent[0];  in semundo_adjust()
477 	for (i = 0; i < suptr->un_cnt; i++, sunptr++) {  in semundo_adjust()
487 			suptr->un_cnt--;  in semundo_adjust()
488 			if (i < suptr->un_cnt)  in semundo_adjust()
489 				suptr->un_ent[i] =  in semundo_adjust()
490 				    suptr->un_ent[suptr->un_cnt];  in semundo_adjust()
491 			if (suptr->un_cnt == 0)  in semundo_adjust()
492 				semu_try_free(suptr);  in semundo_adjust()
502 	if (suptr->un_cnt != seminfo.semume) {  in semundo_adjust()
503 		sunptr = &suptr->un_ent[suptr->un_cnt];  in semundo_adjust()
504 		suptr->un_cnt++;  in semundo_adjust()
517 	struct sem_undo *suptr, *suptr1;  in semundo_clear()  local
522 	LIST_FOREACH_SAFE(suptr, &semu_list, un_next, suptr1) {  in semundo_clear()
523 		sunptr = &suptr->un_ent[0];  in semundo_clear()
524 		for (i = 0; i < suptr->un_cnt; i++, sunptr++) {  in semundo_clear()
528 				suptr->un_cnt--;  in semundo_clear()
529 				if (i < suptr->un_cnt) {  in semundo_clear()
530 					suptr->un_ent[i] =  in semundo_clear()
531 					    suptr->un_ent[suptr->un_cnt];  in semundo_clear()
534 				semu_try_free(suptr);  in semundo_clear()
1114 	struct sem_undo *suptr;  in kern_semop()  local
1361 		suptr = NULL;  in kern_semop()
1374 			error = semundo_adjust(td, &suptr, semid, seq,  in kern_semop()
1395 				if (semundo_adjust(td, &suptr, semid, seq,  in kern_semop()
1444 	struct sem_undo *suptr;  in semexit_myhook()  local
1457 	LIST_FOREACH(suptr, &semu_list, un_next) {  in semexit_myhook()
1458 		if (suptr->un_proc == p)  in semexit_myhook()
1461 	if (suptr == NULL) {  in semexit_myhook()
1465 	LIST_REMOVE(suptr, un_next);  in semexit_myhook()
1468 	    suptr->un_cnt));  in semexit_myhook()
1473 	if (suptr->un_cnt > 0) {  in semexit_myhook()
1475 		for (ix = 0; ix < suptr->un_cnt; ix++) {  in semexit_myhook()
1476 			semid = suptr->un_ent[ix].un_id;  in semexit_myhook()
1477 			semnum = suptr->un_ent[ix].un_num;  in semexit_myhook()
1478 			adjval = suptr->un_ent[ix].un_adjval;  in semexit_myhook()
1479 			seq = suptr->un_ent[ix].un_seq;  in semexit_myhook()
1494 			    suptr->un_proc, suptr->un_ent[ix].un_id,  in semexit_myhook()
1495 			    suptr->un_ent[ix].un_num,  in semexit_myhook()
1496 			    suptr->un_ent[ix].un_adjval,  in semexit_myhook()
1516 	suptr->un_proc = NULL;  in semexit_myhook()
1517 	suptr->un_cnt = 0;  in semexit_myhook()
1518 	LIST_INSERT_HEAD(&semu_free_list, suptr, un_next);  in semexit_myhook()