Set cmd->iocb.ki_ioprio to the ioprio of loop device's request. The purpose is to inherit the original request ioprio in the aio flow. Signed-off-by: Yunlong Xing <yunlong.xing@xxxxxxxxxx> Signed-off-by: Zhiguo Niu <zhiguo.niu@xxxxxxxxxx> --- drivers/block/loop.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 674527d770dc..ed73627af3ff 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -447,7 +447,6 @@ static int lo_rw_aio(struct loop_device *lo, struct loop_cmd *cmd, cmd->iocb.ki_filp = file; cmd->iocb.ki_complete = lo_rw_aio_complete; cmd->iocb.ki_flags = IOCB_DIRECT; - cmd->iocb.ki_ioprio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_NONE, 0); if (rw == ITER_SOURCE) ret = file->f_op->write_iter(&cmd->iocb, &iter); @@ -1892,6 +1891,9 @@ static blk_status_t loop_queue_rq(struct blk_mq_hw_ctx *hctx, break; } + /* get original request ioprio */ + cmd->iocb.ki_ioprio = req_get_ioprio(rq); + /* always use the first bio's css */ cmd->blkcg_css = NULL; cmd->memcg_css = NULL; -- 2.25.1
