650 	struct sem_undo *un;  in perform_atomic_semop_slow()  local
654 	un = q->undo;  in perform_atomic_semop_slow()
672 			int undo = un->semadj[sop->sem_num] - sem_op;  in perform_atomic_semop_slow()
676 			un->semadj[sop->sem_num] = undo;  in perform_atomic_semop_slow()
709 			un->semadj[sop->sem_num] += sem_op;  in perform_atomic_semop_slow()
722 	struct sem_undo *un;  in perform_atomic_semop()  local
726 	un = q->undo;  in perform_atomic_semop()
755 			int undo = un->semadj[sop->sem_num] - sem_op;  in perform_atomic_semop()
769 			int undo = un->semadj[sop->sem_num] - sem_op;  in perform_atomic_semop()
771 			un->semadj[sop->sem_num] = undo;  in perform_atomic_semop()
1141 	struct sem_undo *un, *tu;  in freeary()  local
1149 	list_for_each_entry_safe(un, tu, &sma->list_id, list_id) {  in freeary()
1150 		list_del(&un->list_id);  in freeary()
1151 		spin_lock(&un->ulp->lock);  in freeary()
1152 		un->semid = -1;  in freeary()
1153 		list_del_rcu(&un->list_proc);  in freeary()
1154 		spin_unlock(&un->ulp->lock);  in freeary()
1155 		kfree_rcu(un, rcu);  in freeary()
1342 	struct sem_undo *un;  in semctl_setval()  local
1387 	list_for_each_entry(un, &sma->list_id, list_id)  in semctl_setval()
1388 		un->semadj[semnum] = 0;  in semctl_setval()
1473 		struct sem_undo *un;  in semctl_main()  local
1516 		list_for_each_entry(un, &sma->list_id, list_id) {  in semctl_main()
1518 				un->semadj[i] = 0;  in semctl_main()
1868 	struct sem_undo *un;  in __lookup_undo()  local
1870 	list_for_each_entry_rcu(un, &ulp->list_proc, list_proc,  in __lookup_undo()
1872 		if (un->semid == semid)  in __lookup_undo()
1873 			return un;  in __lookup_undo()
1880 	struct sem_undo *un;  in lookup_undo()  local
1884 	un = __lookup_undo(ulp, semid);  in lookup_undo()
1885 	if (un) {  in lookup_undo()
1886 		list_del_rcu(&un->list_proc);  in lookup_undo()
1887 		list_add_rcu(&un->list_proc, &ulp->list_proc);  in lookup_undo()
1889 	return un;  in lookup_undo()
1907 	struct sem_undo *un, *new;  in find_alloc_undo()  local
1916 	un = lookup_undo(ulp, semid);  in find_alloc_undo()
1918 	if (likely(un != NULL))  in find_alloc_undo()
1932 		un = ERR_PTR(-EIDRM);  in find_alloc_undo()
1951 		un = ERR_PTR(-EIDRM);  in find_alloc_undo()
1959 	un = lookup_undo(ulp, semid);  in find_alloc_undo()
1960 	if (un) {  in find_alloc_undo()
1972 	un = new;  in find_alloc_undo()
1978 	return un;  in find_alloc_undo()
1988 	struct sem_undo *un;  in do_semtimedop()  local
2046 		un = find_alloc_undo(ns, semid);  in do_semtimedop()
2047 		if (IS_ERR(un)) {  in do_semtimedop()
2048 			error = PTR_ERR(un);  in do_semtimedop()
2052 		un = NULL;  in do_semtimedop()
2100 	if (un && un->semid == -1)  in do_semtimedop()
2105 	queue.undo = un;  in do_semtimedop()
2327 		struct sem_undo *un;  in exit_sem()  local
2334 		un = list_entry_rcu(ulp->list_proc.next,  in exit_sem()
2336 		if (&un->list_proc == &ulp->list_proc) {  in exit_sem()
2349 		semid = un->semid;  in exit_sem()
2372 		un = __lookup_undo(ulp, semid);  in exit_sem()
2373 		if (un == NULL) {  in exit_sem()
2384 		list_del(&un->list_id);  in exit_sem()
2387 		list_del_rcu(&un->list_proc);  in exit_sem()
2393 			if (un->semadj[i]) {  in exit_sem()
2394 				semaphore->semval += un->semadj[i];  in exit_sem()
2421 		kfree_rcu(un, rcu);  in exit_sem()