[dm-devel] [PATCH v2] blk-mq: enforce op-specific segment limits in blk_insert_cloned_request

[Keith Busch]

On Wed, Feb 22, 2023 at 11:52:25AM -0700, Uday Shankar wrote:
>  static inline unsigned int blk_rq_get_max_segments(struct request *rq)
>  {
> -	if (req_op(rq) == REQ_OP_DISCARD)
> -		return queue_max_discard_segments(rq->q);
> -	return queue_max_segments(rq->q);
> +	return blk_queue_get_max_segments(rq->q, req_op(rq));
>  }

I think you should just move this function to blk.h instead of
introducing a new one.