sg_timeout
sdev->sg_timeout = clock_t_to_jiffies(timeout);
rq->timeout = sdev->sg_timeout;
return jiffies_to_clock_t(sdev->sg_timeout);
struct sg_timeout *timeout = timer_container_of(timeout, t, timer);
struct sg_timeout timeout = {
timer_setup_on_stack(&timeout.timer, sg_timeout, 0);
unsigned int sg_timeout;