怎样使用timer

crash> timer_list
struct timer_list {
    struct list_head entry;
    unsigned long expires;
    struct tvec_base *base;
    void (*function)(unsigned long);
    unsigned long data;
    int slack;
}
SIZE: 28

struct timer_list safety_timer;
    /* Initilialize safety timer */
    init_timer(&di->safety_timer);
    di->safety_timer.function = abx500_chargalg_safety_timer_expired;
    di->safety_timer.data = (unsigned long) di;
    di->safety_timer.expires = jiffies + HZ;
    add_timer(&di->safety_timer);

static void abx500_chargalg_safety_timer_expired(unsigned long data)
{
    struct abx500_chargalg *di = (struct abx500_chargalg *) data;
    dev_err(di->dev, "Safety timer expired\n");
    di->events.safety_timer_expired = true;

    /* Trigger execution of the algorithm instantly */
    queue_work(di->chargalg_wq, &di->chargalg_work);
}

有关 htimer?