node_marks
return __test_and_clear_bit(offset, node_marks(node, mark));
return !bitmap_empty(node_marks(node, mark), XA_CHUNK_SIZE);
bitmap_fill(node_marks(node, mark), XA_CHUNK_SIZE);
unsigned long *marks = node_marks(xas->xa_node, mark);
return test_bit(offset, node_marks(node, mark));
return __test_and_set_bit(offset, node_marks(node, mark));