On Fri, 2017-04-07 at 16:50 -0700, Bart Van Assche wrote: > If blk_get_request() returns ENODEV then multipath_clone_and_map() > causes a request to be requeued immediately. This can cause a > kworker thread to spend 100% of the CPU time of a single core in > __blk_mq_run_hw_queue() and also can cause device removal to > never finish. > > Avoid this by only requeuing after a delay if blk_get_request() > fails. Additionally, reduce the requeue delay. Hello Mike, The v4.12 merge window will open soon. Have you already had the time to review this patch? Thanks, Bart. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
