Hi Jens, Measurements have shown that limiting the queue depth to one per sequential zone has a significant negative performance impact on zoned UFS devices. Hence this patch series that increases the queue depth for write commands for sequential zones. Please consider this patch series for kernel v5.20. Thanks, Bart. Bart Van Assche (5): block: Introduce the blk_rq_is_seq_write() function scsi: Retry unaligned zoned writes nvme: Make the number of retries request specific nvme: Increase the number of retries for zoned writes block/mq-deadline: Remove zone locking block/mq-deadline.c | 74 ++++----------------------------------- drivers/nvme/host/core.c | 7 +++- drivers/nvme/host/nvme.h | 1 + drivers/scsi/scsi_error.c | 6 ++++ drivers/scsi/sd.c | 2 ++ include/linux/blk-mq.h | 14 ++++++++ 6 files changed, 35 insertions(+), 69 deletions(-)