Re: [PATCH v4 02/11] block: introduce bio zone helpers

Introduce the helper functions bio_zone_no() and bio_zone_is_seq().
Both are the BIO counterparts of the request helpers blk_rq_zone_no()
and blk_rq_zone_is_seq(), respectively returning the number of the
target zone of a bio and true if the BIO target zone is sequential.

Signed-off-by: Damien Le Moal <redacted>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Chaitanya Kulkarni <redacted>
---
  include/linux/blkdev.h | 12 ++++++++++++
  1 file changed, 12 insertions(+)

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index f69c75bd6d27..2db0f376f5d9 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h

@@ -1008,6 +1008,18 @@ static inline unsigned int blk_rq_stats_sectors(const struct request *rq)
  /* Helper to convert BLK_ZONE_ZONE_XXX to its string format XXX */
  const char *blk_zone_cond_str(enum blk_zone_cond zone_cond);
  
+static inline unsigned int bio_zone_no(struct bio *bio)
+{
+	return blk_queue_zone_no(bdev_get_queue(bio->bi_bdev),
+				 bio->bi_iter.bi_sector);
+}
+
+static inline unsigned int bio_zone_is_seq(struct bio *bio)
+{
+	return blk_queue_zone_is_seq(bdev_get_queue(bio->bi_bdev),
+				     bio->bi_iter.bi_sector);
+}
+
  static inline unsigned int blk_rq_zone_no(struct request *rq)
  {
  	return blk_queue_zone_no(rq->q, blk_rq_pos(rq));