On 5/20/21 6:22 AM, 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
---
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: Hannes Reinecke
Cheers,
Hannes
--
Dr. Hannes ReineckeKernel Storage Architect
h...@suse.de +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
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