636 	struct sem_undo *un;  in perform_atomic_semop_slow()  local
640 	un = q->undo;  in perform_atomic_semop_slow()
658 			int undo = un->semadj[sop->sem_num] - sem_op;  in perform_atomic_semop_slow()
662 			un->semadj[sop->sem_num] = undo;  in perform_atomic_semop_slow()
695 			un->semadj[sop->sem_num] += sem_op;  in perform_atomic_semop_slow()
708 	struct sem_undo *un;  in perform_atomic_semop()  local
712 	un = q->undo;  in perform_atomic_semop()
741 			int undo = un->semadj[sop->sem_num] - sem_op;  in perform_atomic_semop()
755 			int undo = un->semadj[sop->sem_num] - sem_op;  in perform_atomic_semop()
757 			un->semadj[sop->sem_num] = undo;  in perform_atomic_semop()
1130 	struct sem_undo *un, *tu;  in freeary()  local
1138 	list_for_each_entry_safe(un, tu, &sma->list_id, list_id) {  in freeary()
1139 		list_del(&un->list_id);  in freeary()
1140 		spin_lock(&un->ulp->lock);  in freeary()
1141 		un->semid = -1;  in freeary()
1142 		list_del_rcu(&un->list_proc);  in freeary()
1143 		spin_unlock(&un->ulp->lock);  in freeary()
1144 		kfree_rcu(un, rcu);  in freeary()
1331 	struct sem_undo *un;  in semctl_setval()  local
1376 	list_for_each_entry(un, &sma->list_id, list_id)  in semctl_setval()
1377 		un->semadj[semnum] = 0;  in semctl_setval()
1462 		struct sem_undo *un;  in semctl_main()  local
1505 		list_for_each_entry(un, &sma->list_id, list_id) {  in semctl_main()
1507 				un->semadj[i] = 0;  in semctl_main()
1831 	struct sem_undo *un;  in __lookup_undo()  local
1833 	list_for_each_entry_rcu(un, &ulp->list_proc, list_proc) {  in __lookup_undo()
1834 		if (un->semid == semid)  in __lookup_undo()
1835 			return un;  in __lookup_undo()
1842 	struct sem_undo *un;  in lookup_undo()  local
1846 	un = __lookup_undo(ulp, semid);  in lookup_undo()
1847 	if (un) {  in lookup_undo()
1848 		list_del_rcu(&un->list_proc);  in lookup_undo()
1849 		list_add_rcu(&un->list_proc, &ulp->list_proc);  in lookup_undo()
1851 	return un;  in lookup_undo()
1869 	struct sem_undo *un, *new;  in find_alloc_undo()  local
1878 	un = lookup_undo(ulp, semid);  in find_alloc_undo()
1880 	if (likely(un != NULL))  in find_alloc_undo()
1894 		un = ERR_PTR(-EIDRM);  in find_alloc_undo()
1913 		un = ERR_PTR(-EIDRM);  in find_alloc_undo()
1921 	un = lookup_undo(ulp, semid);  in find_alloc_undo()
1922 	if (un) {  in find_alloc_undo()
1934 	un = new;  in find_alloc_undo()
1940 	return un;  in find_alloc_undo()
1950 	struct sem_undo *un;  in do_semtimedop()  local
2008 		un = find_alloc_undo(ns, semid);  in do_semtimedop()
2009 		if (IS_ERR(un)) {  in do_semtimedop()
2010 			error = PTR_ERR(un);  in do_semtimedop()
2014 		un = NULL;  in do_semtimedop()
2062 	if (un && un->semid == -1)  in do_semtimedop()
2067 	queue.undo = un;  in do_semtimedop()
2289 		struct sem_undo *un;  in exit_sem()  local
2296 		un = list_entry_rcu(ulp->list_proc.next,  in exit_sem()
2298 		if (&un->list_proc == &ulp->list_proc) {  in exit_sem()
2311 		semid = un->semid;  in exit_sem()
2334 		un = __lookup_undo(ulp, semid);  in exit_sem()
2335 		if (un == NULL) {  in exit_sem()
2346 		list_del(&un->list_id);  in exit_sem()
2352 		list_del_rcu(&un->list_proc);  in exit_sem()
2357 			if (un->semadj[i]) {  in exit_sem()
2358 				semaphore->semval += un->semadj[i];  in exit_sem()
2385 		kfree_rcu(un, rcu);  in exit_sem()