Ming, > So far blk_rq_prep_clone() is only used for setup one underlying > cloned request from dm-rq request. block intetrity can be enabled for > both dm-rq and the underlying queues, so it is reasonable to clone > rq's nr_integrity_segments. Also write_hint is from bio, it should > have been cloned too. Reviewed-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> -- Martin K. Petersen Oracle Linux Engineering -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel