linux 2.6.23ʱÖÓÖжÏÓëµ÷¶È·ÖÎö(4)

TIMER_INITIALIZER£¨£©£º
1):TIMER_INITIALIZER£¨£©ÓÃÀ´ÉùÃ÷Ò»¸ö¶¨Ê±Æ÷£¬ËüµÄ¶¨ÒåÈçÏ£º
#define TIMER_INITIALIZER(_function, _expires, _data) {         \
                .function = (_function),                        \            
                .expires = (_expires),                          \
                .data = (_data),                                \
                .base = &boot_tvec_bases,                       \
        }
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2): mod_timer():Ð޸Ķ¨Ê±Æ÷µÄµ½Ê±Ê±¼ä
int mod_timer(struct timer_list *timer, unsigned long expires)
{
    //Èç¹û¸Ã¶¨Ê±Æ÷ûÓж¨Òåfuction
        BUG_ON(!timer->function);
        timer_stats_timer_set_start_info(timer);
        /*
         * This is a common optimization triggered by the
         * networking code - if the timer is re-modified
   &nb