On 6/27/21 3:11 PM, Bart Van Assche wrote: > The purpose of the WARN_ON_ONCE() statement in dd_insert_request() is to > verify that dd_prepare_request() cleared rq->elv.priv[0]. Since > dd_prepare_request() is called during request initialization but not if a > request is requeued, a warning is triggered if a request is requeued. Fix > this by removing the WARN_ON_ONCE() statement. This patch suppresses the > following kernel warning: > > WARNING: CPU: 28 PID: 432 at block/mq-deadline-main.c:740 dd_insert_request+0x4d4/0x5b0 > Workqueue: kblockd blk_mq_requeue_work > Call Trace: > dd_insert_requests+0xfa/0x130 > blk_mq_sched_insert_request+0x22c/0x240 > blk_mq_requeue_work+0x21c/0x2d0 > process_one_work+0x4c2/0xa70 > worker_thread+0x2e5/0x6d0 > kthread+0x21c/0x250 > ret_from_fork+0x1f/0x30 Applied, thanks. -- Jens Axboe
