151 	struct sem_undo_list	*ulp;		/* back ptr to sem_undo_list */  member
1151 		spin_lock(&un->ulp->lock);  in freeary()
1154 		spin_unlock(&un->ulp->lock);  in freeary()
1866 static struct sem_undo *__lookup_undo(struct sem_undo_list *ulp, int semid)  in __lookup_undo()  argument
1870 	list_for_each_entry_rcu(un, &ulp->list_proc, list_proc,  in __lookup_undo()
1871 				spin_is_locked(&ulp->lock)) {  in __lookup_undo()
1878 static struct sem_undo *lookup_undo(struct sem_undo_list *ulp, int semid)  in lookup_undo()  argument
1882 	assert_spin_locked(&ulp->lock);  in lookup_undo()
1884 	un = __lookup_undo(ulp, semid);  in lookup_undo()
1887 		list_add_rcu(&un->list_proc, &ulp->list_proc);  in lookup_undo()
1906 	struct sem_undo_list *ulp;  in find_alloc_undo()  local
1910 	error = get_undo_list(&ulp);  in find_alloc_undo()
1915 	spin_lock(&ulp->lock);  in find_alloc_undo()
1916 	un = lookup_undo(ulp, semid);  in find_alloc_undo()
1917 	spin_unlock(&ulp->lock);  in find_alloc_undo()
1954 	spin_lock(&ulp->lock);  in find_alloc_undo()
1959 	un = lookup_undo(ulp, semid);  in find_alloc_undo()
1966 	new->ulp = ulp;  in find_alloc_undo()
1968 	assert_spin_locked(&ulp->lock);  in find_alloc_undo()
1969 	list_add_rcu(&new->list_proc, &ulp->list_proc);  in find_alloc_undo()
1975 	spin_unlock(&ulp->lock);  in find_alloc_undo()
2315 	struct sem_undo_list *ulp;  in exit_sem()  local
2317 	ulp = tsk->sysvsem.undo_list;  in exit_sem()
2318 	if (!ulp)  in exit_sem()
2322 	if (!refcount_dec_and_test(&ulp->refcnt))  in exit_sem()
2334 		un = list_entry_rcu(ulp->list_proc.next,  in exit_sem()
2336 		if (&un->list_proc == &ulp->list_proc) {  in exit_sem()
2343 			spin_lock(&ulp->lock);  in exit_sem()
2344 			spin_unlock(&ulp->lock);  in exit_sem()
2348 		spin_lock(&ulp->lock);  in exit_sem()
2350 		spin_unlock(&ulp->lock);  in exit_sem()
2372 		un = __lookup_undo(ulp, semid);  in exit_sem()
2386 		spin_lock(&ulp->lock);  in exit_sem()
2388 		spin_unlock(&ulp->lock);  in exit_sem()
2423 	kfree(ulp);  in exit_sem()