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()
772 			int undo = un->semadj[sop->sem_num] - sem_op;  in perform_atomic_semop()
774 			un->semadj[sop->sem_num] = undo;  in perform_atomic_semop()
1146 	struct sem_undo *un, *tu;  in freeary()  local
1154 	list_for_each_entry_safe(un, tu, &sma->list_id, list_id) {  in freeary()
1155 		list_del(&un->list_id);  in freeary()
1156 		spin_lock(&un->ulp->lock);  in freeary()
1157 		un->semid = -1;  in freeary()
1158 		list_del_rcu(&un->list_proc);  in freeary()
1159 		spin_unlock(&un->ulp->lock);  in freeary()
1160 		kvfree_rcu(un, rcu);  in freeary()
1347 	struct sem_undo *un;  in semctl_setval()  local
1392 	list_for_each_entry(un, &sma->list_id, list_id)  in semctl_setval()
1393 		un->semadj[semnum] = 0;  in semctl_setval()
1478 		struct sem_undo *un;  in semctl_main()  local
1521 		list_for_each_entry(un, &sma->list_id, list_id) {  in semctl_main()
1523 				un->semadj[i] = 0;  in semctl_main()
1873 	struct sem_undo *un;  in __lookup_undo()  local
1875 	list_for_each_entry_rcu(un, &ulp->list_proc, list_proc,  in __lookup_undo()
1877 		if (un->semid == semid)  in __lookup_undo()
1878 			return un;  in __lookup_undo()
1885 	struct sem_undo *un;  in lookup_undo()  local
1889 	un = __lookup_undo(ulp, semid);  in lookup_undo()
1890 	if (un) {  in lookup_undo()
1891 		list_del_rcu(&un->list_proc);  in lookup_undo()
1892 		list_add_rcu(&un->list_proc, &ulp->list_proc);  in lookup_undo()
1894 	return un;  in lookup_undo()
1912 	struct sem_undo *un, *new;  in find_alloc_undo()  local
1921 	un = lookup_undo(ulp, semid);  in find_alloc_undo()
1923 	if (likely(un != NULL))  in find_alloc_undo()
1937 		un = ERR_PTR(-EIDRM);  in find_alloc_undo()
1957 		un = ERR_PTR(-EIDRM);  in find_alloc_undo()
1965 	un = lookup_undo(ulp, semid);  in find_alloc_undo()
1966 	if (un) {  in find_alloc_undo()
1978 	un = new;  in find_alloc_undo()
1984 	return un;  in find_alloc_undo()
1994 	struct sem_undo *un;  in __do_semtimedop()  local
2040 		un = find_alloc_undo(ns, semid);  in __do_semtimedop()
2041 		if (IS_ERR(un)) {  in __do_semtimedop()
2042 			error = PTR_ERR(un);  in __do_semtimedop()
2046 		un = NULL;  in __do_semtimedop()
2094 	if (un && un->semid == -1)  in __do_semtimedop()
2099 	queue.undo = un;  in __do_semtimedop()
2353 		struct sem_undo *un;  in exit_sem()  local
2360 		un = list_entry_rcu(ulp->list_proc.next,  in exit_sem()
2362 		if (&un->list_proc == &ulp->list_proc) {  in exit_sem()
2375 		semid = un->semid;  in exit_sem()
2398 		un = __lookup_undo(ulp, semid);  in exit_sem()
2399 		if (un == NULL) {  in exit_sem()
2410 		list_del(&un->list_id);  in exit_sem()
2413 		list_del_rcu(&un->list_proc);  in exit_sem()
2419 			if (un->semadj[i]) {  in exit_sem()
2420 				semaphore->semval += un->semadj[i];  in exit_sem()
2447 		kvfree_rcu(un, rcu);  in exit_sem()