参照元†
返り値†
void blk_rq_timed_out_timer(unsigned long data)
{
struct request_queue *q = (struct request_queue *) data;
unsigned long flags, next = 0;
struct request *rq, *tmp;
spin_lock_irqsave(q->queue_lock, flags);
list_for_each_entry_safe(rq, tmp, &q->timeout_list, timeout_list) {
if (time_after_eq(jiffies, rq->deadline)) {
list_del_init(&rq->timeout_list);
/*
* Check if we raced with end io completion
*/
if (blk_mark_rq_complete(rq))
continue;
blk_rq_timed_out(rq);
} else if (!next || time_after(next, rq->deadline))
next = rq->deadline;
}
/*
* next can never be 0 here with the list non-empty, since we always
* bump ->deadline to 1 so we can detect if the timer was ever added
* or not. See comment in blk_add_timer()
*/
if (next)
mod_timer(&q->timeout, round_jiffies_up(next));
spin_unlock_irqrestore(q->queue_lock, flags);
}
コメント†
![[PukiWiki]](image/pukiwiki.png "[PukiWiki]")
