On 6/14/22 11:49 AM, Bart Van Assche wrote:
> Introduce a function that makes it easy to verify whether a write
> request is for a sequential write required or sequential write preferred
> zone.
>
> Cc: Damien Le Moal <damien.lemoal@xxxxxxx>
> Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
> ---
> include/linux/blk-mq.h | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
>
> diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
> index e2d9daf7e8dd..3e7feb48105f 100644
> --- a/include/linux/blk-mq.h
> +++ b/include/linux/blk-mq.h
> @@ -1129,6 +1129,15 @@ static inline unsigned int blk_rq_zone_is_seq(struct request *rq)
> return blk_queue_zone_is_seq(rq->q, blk_rq_pos(rq));
> }
>
> +/**
> + * blk_rq_is_seq_write() - Whether @rq is a write request for a sequential zone.
> + * @rq: Request to examine.
> + */
> +static inline bool blk_rq_is_seq_write(struct request *rq)
> +{
> + return req_op(rq) == REQ_OP_WRITE && blk_rq_zone_is_seq(rq);
> +}
This should include something telling us it's a zone thing, because it
sounds generic. blk_rq_is_zoned_seq_write()?
--
Jens Axboe
