151 	struct sem_undo_list	*ulp;		/* back ptr to sem_undo_list */  member
1153 		spin_lock(&un->ulp->lock);  in freeary()
1156 		spin_unlock(&un->ulp->lock);  in freeary()
1868 static struct sem_undo *__lookup_undo(struct sem_undo_list *ulp, int semid)  in __lookup_undo()  argument
1872 	list_for_each_entry_rcu(un, &ulp->list_proc, list_proc,  in __lookup_undo()
1873 				spin_is_locked(&ulp->lock)) {  in __lookup_undo()
1880 static struct sem_undo *lookup_undo(struct sem_undo_list *ulp, int semid)  in lookup_undo()  argument
1884 	assert_spin_locked(&ulp->lock);  in lookup_undo()
1886 	un = __lookup_undo(ulp, semid);  in lookup_undo()
1889 		list_add_rcu(&un->list_proc, &ulp->list_proc);  in lookup_undo()
1908 	struct sem_undo_list *ulp;  in find_alloc_undo()  local
1912 	error = get_undo_list(&ulp);  in find_alloc_undo()
1917 	spin_lock(&ulp->lock);  in find_alloc_undo()
1918 	un = lookup_undo(ulp, semid);  in find_alloc_undo()
1919 	spin_unlock(&ulp->lock);  in find_alloc_undo()
1956 	spin_lock(&ulp->lock);  in find_alloc_undo()
1961 	un = lookup_undo(ulp, semid);  in find_alloc_undo()
1968 	new->ulp = ulp;  in find_alloc_undo()
1970 	assert_spin_locked(&ulp->lock);  in find_alloc_undo()
1971 	list_add_rcu(&new->list_proc, &ulp->list_proc);  in find_alloc_undo()
1977 	spin_unlock(&ulp->lock);  in find_alloc_undo()
2318 	struct sem_undo_list *ulp;  in exit_sem()  local
2320 	ulp = tsk->sysvsem.undo_list;  in exit_sem()
2321 	if (!ulp)  in exit_sem()
2325 	if (!refcount_dec_and_test(&ulp->refcnt))  in exit_sem()
2337 		un = list_entry_rcu(ulp->list_proc.next,  in exit_sem()
2339 		if (&un->list_proc == &ulp->list_proc) {  in exit_sem()
2346 			spin_lock(&ulp->lock);  in exit_sem()
2347 			spin_unlock(&ulp->lock);  in exit_sem()
2351 		spin_lock(&ulp->lock);  in exit_sem()
2353 		spin_unlock(&ulp->lock);  in exit_sem()
2375 		un = __lookup_undo(ulp, semid);  in exit_sem()
2389 		spin_lock(&ulp->lock);  in exit_sem()
2391 		spin_unlock(&ulp->lock);  in exit_sem()
2426 	kfree(ulp);  in exit_sem()