update_refs

/*
 * Update an object's references. object->lock must be held by the caller.
 */
static void update_refs(struct kmemleak_object *object)
{
    if (!color_white(object)) {
        /* non-orphan, ignored or new */
        return;
    }
 
    /*
     * Increase the object's reference count (number of pointers to the
     * memory block). If this count reaches the required minimum, the
     * object's color will become gray and it will be added to the
     * gray_list.
     */
    object->count++;
    if (color_gray(object)) {
        /* put_object() called when removing from gray_list */
        WARN_ON(!get_object(object));
        list_add_tail(&object->gray_list, &gray_list);
    }
}
函数源码
