Jens Axboe [jens.axboe@xxxxxxxxxx] wrote: > > Yes, we should not access it although I don't think the request can be > > freed while the existing code is accessing the deadline field. What > > likely can happen is that we may call mod_timer with jiffies that is > > older than current which would call the timer immediately... > > That would not call the timer immediately, that will not call it until > jiffies reaches that value again. So you're looking at a minimum of 49 > days :-) I remember the timer code treating "past" expiry times as special. If not, then we have a real bug! It is also hard to guarantee in blk_rq_timed_out_timer() that we always call mod_timer with future expiry time! --Malahal. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
