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3.Ò»¸öwordÖ»ÓÃÒ»¸öbitÀ´±íʾpending£¬ÓÃÀ´ËµÃ÷Õâ¸öwork_structÄ¿Ç°ÔÚ¶ÓÁÐÉϵȴýÖ´ÐС£
David´¦ÀíÁËÒÔÉϵÄÇé¿ö£¬Ê¹ÓÃÁËÒ»ÖÖеĽṹÌåstruct delayed_work£¬×¨ÃÅÓÃÓÚÑÓʱµ÷ÓÃʹÓ᣶ø°Ñstruct work_structureÖеÄtimer½á¹¹Ìåɾ³ýÁË¡£Ë½ÓÐÊý¾ÝÖ¸ÕëÏûʧÁË£¬workº¯ÊýʹÓÃÒ»¸öÖ¸Ïòwork_structureµÄÖ¸Õ룬typedef void (*work_func_t)(struct work_struct *work)¡£Ê¹ÓÃһЩ¼¼ÇÉɾ³ýÁËpending word¡£ÕâЩ±ä¶¯µÄ½á¹ûʹµÃworkqueueµÄAPI·¢ÉúÁ˱仯¡£ÓÐÁ½ÖÖ·½·¨ÉùÃ÷Ò»¸öworkqueueµÄentry¡£
    DECLARE_WORK(name, func);
    DECLARE_DELAYED_WORK(name, func);
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  INIT_WORK(struct work_struct work, work_func_t func);
  PREPARE_WORK(struct work_struct work, work_func_t func);
  INIT_DELAYED_WORK(struct delayed_work work, work_func_t func);
  PREPARE_DELAYED_WORK(struct delayed_work work, work_func_t func);
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The functions for adding entries to workqueues (and canceling them) now look like this:
    int queue_work(struct workqueue_struct *queue,
  


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