93 unsigned long blk_rq_timeout(unsigned long timeout)  in blk_rq_timeout()  argument
98 	if (time_after(timeout, maxt))  in blk_rq_timeout()
99 		timeout = maxt;  in blk_rq_timeout()
101 	return timeout;  in blk_rq_timeout()
121 	if (!req->timeout)  in blk_add_timer()
122 		req->timeout = q->rq_timeout;  in blk_add_timer()
126 	expiry = jiffies + req->timeout;  in blk_add_timer()
136 	if (!timer_pending(&q->timeout) ||  in blk_add_timer()
137 	    time_before(expiry, q->timeout.expires)) {  in blk_add_timer()
138 		unsigned long diff = q->timeout.expires - expiry;  in blk_add_timer()
147 		if (!timer_pending(&q->timeout) || (diff >= HZ / 2))  in blk_add_timer()
148 			mod_timer(&q->timeout, expiry);  in blk_add_timer()