On 01/18/2017 08:14 AM, Paolo Valente wrote: > according to the function blk_mq_sched_put_request, the > mq.completed_request hook seems to always be invoked (if set) for a > request for which the mq.put_rq_priv is invoked (if set). Correct, any request that came out of blk_mq_sched_get_request() will always have completed called on it, regardless of whether it had IO started on it or not. -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html