On Tue, Apr 10, 2018 at 03:01:57PM -0600, Bart Van Assche wrote: > The blk-mq timeout handling code ignores completions that occur after > blk_mq_check_expired() has been called and before blk_mq_rq_timed_out() > has reset rq->aborted_gstate. If a block driver timeout handler always > returns BLK_EH_RESET_TIMER then the result will be that the request > never terminates. Under this situation: IMO, if this request has been handled by driver's irq handler, and if driver's .timeout still returns BLK_EH_RESET_TIMER, it is driver's bug, and the correct return value should be BLK_EH_HANDLED. -- Ming
