On 09/22/2017 09:36 AM, weiping zhang wrote: > if blk-mq use "none" io scheduler, nr_request get a wrong value when > input a number > tag_set->queue_depth. blk_mq_tag_update_depth will get > the smaller one min(nr, set->queue_depth), and then q->nr_request get a > wrong value. > > Reproduce: > > echo none > /sys/block/nvme0n1/queue/scheduler > echo 1000000 > /sys/block/nvme0n1/queue/nr_requests > cat /sys/block/nvme0n1/queue/nr_requests > 1000000 Sorry for the delay - looks good to me, and also tested that it does fix the issue. Thanks, applied for 4.15. -- Jens Axboe
