> + /* > + * Don't allow merge of different I/O priorities. > + */ > + if (req->ioprio != next->ioprio) > + return NULL;
> + /* > + * Don't allow merge of different I/O priorities. > + */ > + if (rq->ioprio != bio_prio(bio)) > + return false; > + These comments just restate what is obvious in the code. I would recommend to drop them.
