125 	struct sem_undo_list	*ulp;		/* back ptr to sem_undo_list */  member
1099 		spin_lock(&un->ulp->lock);  in freeary()
1102 		spin_unlock(&un->ulp->lock);  in freeary()
1652 static struct sem_undo *__lookup_undo(struct sem_undo_list *ulp, int semid)  in __lookup_undo()  argument
1656 	list_for_each_entry_rcu(un, &ulp->list_proc, list_proc) {  in __lookup_undo()
1663 static struct sem_undo *lookup_undo(struct sem_undo_list *ulp, int semid)  in lookup_undo()  argument
1667 	assert_spin_locked(&ulp->lock);  in lookup_undo()
1669 	un = __lookup_undo(ulp, semid);  in lookup_undo()
1672 		list_add_rcu(&un->list_proc, &ulp->list_proc);  in lookup_undo()
1691 	struct sem_undo_list *ulp;  in find_alloc_undo()  local
1695 	error = get_undo_list(&ulp);  in find_alloc_undo()
1700 	spin_lock(&ulp->lock);  in find_alloc_undo()
1701 	un = lookup_undo(ulp, semid);  in find_alloc_undo()
1702 	spin_unlock(&ulp->lock);  in find_alloc_undo()
1739 	spin_lock(&ulp->lock);  in find_alloc_undo()
1744 	un = lookup_undo(ulp, semid);  in find_alloc_undo()
1751 	new->ulp = ulp;  in find_alloc_undo()
1753 	assert_spin_locked(&ulp->lock);  in find_alloc_undo()
1754 	list_add_rcu(&new->list_proc, &ulp->list_proc);  in find_alloc_undo()
1760 	spin_unlock(&ulp->lock);  in find_alloc_undo()
2068 	struct sem_undo_list *ulp;  in exit_sem()  local
2070 	ulp = tsk->sysvsem.undo_list;  in exit_sem()
2071 	if (!ulp)  in exit_sem()
2075 	if (!atomic_dec_and_test(&ulp->refcnt))  in exit_sem()
2085 		un = list_entry_rcu(ulp->list_proc.next,  in exit_sem()
2087 		if (&un->list_proc == &ulp->list_proc) {  in exit_sem()
2094 			spin_unlock_wait(&ulp->lock);  in exit_sem()
2098 		spin_lock(&ulp->lock);  in exit_sem()
2100 		spin_unlock(&ulp->lock);  in exit_sem()
2122 		un = __lookup_undo(ulp, semid);  in exit_sem()
2136 		spin_lock(&ulp->lock);  in exit_sem()
2138 		spin_unlock(&ulp->lock);  in exit_sem()
2174 	kfree(ulp);  in exit_sem()