Christoph, > Add a helper to query the number of sectors support per each discard > bio based on the block device and use this helper to stop various > places from poking into the request_queue to see if discard is > supported and if so how much. This mirrors what is done e.g. for > write zeroes as well. Nicer! Reviewed-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> -- Martin K. Petersen Oracle Linux Engineering