653 	struct sem_undo *un;  in perform_atomic_semop_slow()  local
657 	un = q->undo;  in perform_atomic_semop_slow()
675 			int undo = un->semadj[sop->sem_num] - sem_op;  in perform_atomic_semop_slow()
679 			un->semadj[sop->sem_num] = undo;  in perform_atomic_semop_slow()
712 			un->semadj[sop->sem_num] += sem_op;  in perform_atomic_semop_slow()
725 	struct sem_undo *un;  in perform_atomic_semop()  local
729 	un = q->undo;  in perform_atomic_semop()
758 			int undo = un->semadj[sop->sem_num] - sem_op;  in perform_atomic_semop()
771 			int undo = un->semadj[sop->sem_num] - sem_op;  in perform_atomic_semop()
773 			un->semadj[sop->sem_num] = undo;  in perform_atomic_semop()
1145 	struct sem_undo *un, *tu;  in freeary()  local
1153 	list_for_each_entry_safe(un, tu, &sma->list_id, list_id) {  in freeary()
1154 		list_del(&un->list_id);  in freeary()
1155 		spin_lock(&un->ulp->lock);  in freeary()
1156 		un->semid = -1;  in freeary()
1157 		list_del_rcu(&un->list_proc);  in freeary()
1158 		spin_unlock(&un->ulp->lock);  in freeary()
1159 		kvfree_rcu(un, rcu);  in freeary()
1346 	struct sem_undo *un;  in semctl_setval()  local
1391 	list_for_each_entry(un, &sma->list_id, list_id)  in semctl_setval()
1392 		un->semadj[semnum] = 0;  in semctl_setval()
1476 		struct sem_undo *un;  in semctl_main()  local
1519 		list_for_each_entry(un, &sma->list_id, list_id) {  in semctl_main()
1521 				un->semadj[i] = 0;  in semctl_main()
1871 	struct sem_undo *un;  in __lookup_undo()  local
1873 	list_for_each_entry_rcu(un, &ulp->list_proc, list_proc,  in __lookup_undo()
1875 		if (un->semid == semid)  in __lookup_undo()
1876 			return un;  in __lookup_undo()
1883 	struct sem_undo *un;  in lookup_undo()  local
1887 	un = __lookup_undo(ulp, semid);  in lookup_undo()
1888 	if (un) {  in lookup_undo()
1889 		list_del_rcu(&un->list_proc);  in lookup_undo()
1890 		list_add_rcu(&un->list_proc, &ulp->list_proc);  in lookup_undo()
1892 	return un;  in lookup_undo()
1910 	struct sem_undo *un, *new;  in find_alloc_undo()  local
1919 	un = lookup_undo(ulp, semid);  in find_alloc_undo()
1921 	if (likely(un != NULL))  in find_alloc_undo()
1935 		un = ERR_PTR(-EIDRM);  in find_alloc_undo()
1954 		un = ERR_PTR(-EIDRM);  in find_alloc_undo()
1962 	un = lookup_undo(ulp, semid);  in find_alloc_undo()
1963 	if (un) {  in find_alloc_undo()
1975 	un = new;  in find_alloc_undo()
1980 	return un;  in find_alloc_undo()
1990 	struct sem_undo *un;  in __do_semtimedop()  local
2037 		un = find_alloc_undo(ns, semid);  in __do_semtimedop()
2038 		if (IS_ERR(un)) {  in __do_semtimedop()
2039 			error = PTR_ERR(un);  in __do_semtimedop()
2043 		un = NULL;  in __do_semtimedop()
2091 	if (un && un->semid == -1)  in __do_semtimedop()
2096 	queue.undo = un;  in __do_semtimedop()
2349 		struct sem_undo *un;  in exit_sem()  local
2356 		un = list_entry_rcu(ulp->list_proc.next,  in exit_sem()
2358 		if (&un->list_proc == &ulp->list_proc) {  in exit_sem()
2371 		semid = un->semid;  in exit_sem()
2394 		un = __lookup_undo(ulp, semid);  in exit_sem()
2395 		if (un == NULL) {  in exit_sem()
2406 		list_del(&un->list_id);  in exit_sem()
2409 		list_del_rcu(&un->list_proc);  in exit_sem()
2415 			if (un->semadj[i]) {  in exit_sem()
2416 				semaphore->semval += un->semadj[i];  in exit_sem()
2443 		kvfree_rcu(un, rcu);  in exit_sem()