On 4/14/21 9:43 PM, Lin Feng wrote: > Since commit 01e99aeca39796003 'blk-mq: insert passthrough request into > hctx->dispatch directly', passthrough request should not appear in > IO-scheduler any more, so blk_rq_is_passthrough checking in addon IO > schedulers is redundant. > > (Notes: this patch passes generic IO load test with hdds under SAS > controller and hdds under AHCI controller but obviously not covers all. > Not sure if passthrough request can still escape into IO scheduler from > blk_mq_sched_insert_requests, which is used by blk_mq_flush_plug_list and > has lots of indirect callers.) Applied, with the bfq bits hand edited to apply for 5.13. -- Jens Axboe
