UBD_MAX_REQUEST   848 arch/um/drivers/ubd_kern.c 		blk_queue_max_discard_sectors(ubd_dev->queue, UBD_MAX_REQUEST);
UBD_MAX_REQUEST   849 arch/um/drivers/ubd_kern.c 		blk_queue_max_write_zeroes_sectors(ubd_dev->queue, UBD_MAX_REQUEST);