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

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On 5/24/21 9:25 PM, Damien Le Moal wrote:
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 <damien.lemoal@xxxxxxx>
Reviewed-by: Hannes Reinecke <hare@xxxxxxx>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@xxxxxxx>
---
  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));


Reviewed-by: Himanshu Madhani <himanshu.madhani@xxxxxxxxxx>

--
Himanshu Madhani                                Oracle Linux Engineering



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