632 	struct sem_undo *un;  in perform_atomic_semop_slow()  local
636 	un = q->undo;  in perform_atomic_semop_slow()
654 			int undo = un->semadj[sop->sem_num] - sem_op;  in perform_atomic_semop_slow()
658 			un->semadj[sop->sem_num] = undo;  in perform_atomic_semop_slow()
691 			un->semadj[sop->sem_num] += sem_op;  in perform_atomic_semop_slow()
704 	struct sem_undo *un;  in perform_atomic_semop()  local
708 	un = q->undo;  in perform_atomic_semop()
737 			int undo = un->semadj[sop->sem_num] - sem_op;  in perform_atomic_semop()
751 			int undo = un->semadj[sop->sem_num] - sem_op;  in perform_atomic_semop()
753 			un->semadj[sop->sem_num] = undo;  in perform_atomic_semop()
1126 	struct sem_undo *un, *tu;  in freeary()  local
1134 	list_for_each_entry_safe(un, tu, &sma->list_id, list_id) {  in freeary()
1135 		list_del(&un->list_id);  in freeary()
1136 		spin_lock(&un->ulp->lock);  in freeary()
1137 		un->semid = -1;  in freeary()
1138 		list_del_rcu(&un->list_proc);  in freeary()
1139 		spin_unlock(&un->ulp->lock);  in freeary()
1140 		kfree_rcu(un, rcu);  in freeary()
1327 	struct sem_undo *un;  in semctl_setval()  local
1372 	list_for_each_entry(un, &sma->list_id, list_id)  in semctl_setval()
1373 		un->semadj[semnum] = 0;  in semctl_setval()
1458 		struct sem_undo *un;  in semctl_main()  local
1501 		list_for_each_entry(un, &sma->list_id, list_id) {  in semctl_main()
1503 				un->semadj[i] = 0;  in semctl_main()
1853 	struct sem_undo *un;  in __lookup_undo()  local
1855 	list_for_each_entry_rcu(un, &ulp->list_proc, list_proc,  in __lookup_undo()
1857 		if (un->semid == semid)  in __lookup_undo()
1858 			return un;  in __lookup_undo()
1865 	struct sem_undo *un;  in lookup_undo()  local
1869 	un = __lookup_undo(ulp, semid);  in lookup_undo()
1870 	if (un) {  in lookup_undo()
1871 		list_del_rcu(&un->list_proc);  in lookup_undo()
1872 		list_add_rcu(&un->list_proc, &ulp->list_proc);  in lookup_undo()
1874 	return un;  in lookup_undo()
1892 	struct sem_undo *un, *new;  in find_alloc_undo()  local
1901 	un = lookup_undo(ulp, semid);  in find_alloc_undo()
1903 	if (likely(un != NULL))  in find_alloc_undo()
1917 		un = ERR_PTR(-EIDRM);  in find_alloc_undo()
1936 		un = ERR_PTR(-EIDRM);  in find_alloc_undo()
1944 	un = lookup_undo(ulp, semid);  in find_alloc_undo()
1945 	if (un) {  in find_alloc_undo()
1957 	un = new;  in find_alloc_undo()
1963 	return un;  in find_alloc_undo()
1973 	struct sem_undo *un;  in do_semtimedop()  local
2031 		un = find_alloc_undo(ns, semid);  in do_semtimedop()
2032 		if (IS_ERR(un)) {  in do_semtimedop()
2033 			error = PTR_ERR(un);  in do_semtimedop()
2037 		un = NULL;  in do_semtimedop()
2085 	if (un && un->semid == -1)  in do_semtimedop()
2090 	queue.undo = un;  in do_semtimedop()
2312 		struct sem_undo *un;  in exit_sem()  local
2319 		un = list_entry_rcu(ulp->list_proc.next,  in exit_sem()
2321 		if (&un->list_proc == &ulp->list_proc) {  in exit_sem()
2334 		semid = un->semid;  in exit_sem()
2357 		un = __lookup_undo(ulp, semid);  in exit_sem()
2358 		if (un == NULL) {  in exit_sem()
2369 		list_del(&un->list_id);  in exit_sem()
2375 		list_del_rcu(&un->list_proc);  in exit_sem()
2380 			if (un->semadj[i]) {  in exit_sem()
2381 				semaphore->semval += un->semadj[i];  in exit_sem()
2408 		kfree_rcu(un, rcu);  in exit_sem()