151 	struct sem_undo_list	*ulp;		/* back ptr to sem_undo_list */  member
1136 		spin_lock(&un->ulp->lock);  in freeary()
1139 		spin_unlock(&un->ulp->lock);  in freeary()
1851 static struct sem_undo *__lookup_undo(struct sem_undo_list *ulp, int semid)  in __lookup_undo()  argument
1855 	list_for_each_entry_rcu(un, &ulp->list_proc, list_proc,  in __lookup_undo()
1856 				spin_is_locked(&ulp->lock)) {  in __lookup_undo()
1863 static struct sem_undo *lookup_undo(struct sem_undo_list *ulp, int semid)  in lookup_undo()  argument
1867 	assert_spin_locked(&ulp->lock);  in lookup_undo()
1869 	un = __lookup_undo(ulp, semid);  in lookup_undo()
1872 		list_add_rcu(&un->list_proc, &ulp->list_proc);  in lookup_undo()
1891 	struct sem_undo_list *ulp;  in find_alloc_undo()  local
1895 	error = get_undo_list(&ulp);  in find_alloc_undo()
1900 	spin_lock(&ulp->lock);  in find_alloc_undo()
1901 	un = lookup_undo(ulp, semid);  in find_alloc_undo()
1902 	spin_unlock(&ulp->lock);  in find_alloc_undo()
1939 	spin_lock(&ulp->lock);  in find_alloc_undo()
1944 	un = lookup_undo(ulp, semid);  in find_alloc_undo()
1951 	new->ulp = ulp;  in find_alloc_undo()
1953 	assert_spin_locked(&ulp->lock);  in find_alloc_undo()
1954 	list_add_rcu(&new->list_proc, &ulp->list_proc);  in find_alloc_undo()
1960 	spin_unlock(&ulp->lock);  in find_alloc_undo()
2300 	struct sem_undo_list *ulp;  in exit_sem()  local
2302 	ulp = tsk->sysvsem.undo_list;  in exit_sem()
2303 	if (!ulp)  in exit_sem()
2307 	if (!refcount_dec_and_test(&ulp->refcnt))  in exit_sem()
2319 		un = list_entry_rcu(ulp->list_proc.next,  in exit_sem()
2321 		if (&un->list_proc == &ulp->list_proc) {  in exit_sem()
2328 			spin_lock(&ulp->lock);  in exit_sem()
2329 			spin_unlock(&ulp->lock);  in exit_sem()
2333 		spin_lock(&ulp->lock);  in exit_sem()
2335 		spin_unlock(&ulp->lock);  in exit_sem()
2357 		un = __lookup_undo(ulp, semid);  in exit_sem()
2410 	kfree(ulp);  in exit_sem()