blk_queue_io_stat 1256 block/blk-core.c if (blk_queue_io_stat(q)) blk_queue_io_stat 322 block/blk-mq.c if (blk_queue_io_stat(data->q)) blk_queue_io_stat 317 drivers/md/dm-rq.c if (blk_queue_io_stat(clone->q)) blk_queue_io_stat 404 drivers/nvdimm/nd.h if (!blk_queue_io_stat(disk->queue))