diff mbox series

[v9,09/13] dm-zone: use generic helpers to calculate offset from zone start

Message ID 20220803094801.177490-10-p.raghav@samsung.com (mailing list archive)
State New, archived
Headers show
Series [v9,01/13] block: make bdev_nr_zones and disk_zone_no generic for npo2 zone size | expand

Commit Message

Pankaj Raghav Aug. 3, 2022, 9:47 a.m. UTC 
Use the bdev_offset_from_zone_start() helper function to calculate
the offset from zone start instead of using power of 2 based
calculation.

Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 drivers/md/dm-zone.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

Comments

Bart Van Assche Aug. 3, 2022, 5:23 p.m. UTC | #1 
On 8/3/22 02:47, Pankaj Raghav wrote:
> -		if ((clone->bi_iter.bi_sector & (zsectors - 1)) != zwp_offset)
> +		if ((bdev_offset_from_zone_start(md->disk->part0,
> +						 clone->bi_iter.bi_sector)) != zwp_offset)

If this patch series needs to be reposted, please leave out the 
superfluous parentheses from the above statement.

Thanks,

Bart.
diff mbox series

Patch

diff --git a/drivers/md/dm-zone.c b/drivers/md/dm-zone.c
index 3dafc0e8b7a9..31c16aafdbfc 100644
--- a/drivers/md/dm-zone.c
+++ b/drivers/md/dm-zone.c
@@ -390,7 +390,9 @@  static bool dm_zone_map_bio_begin(struct mapped_device *md,
 	case REQ_OP_WRITE_ZEROES:
 	case REQ_OP_WRITE:
 		/* Writes must be aligned to the zone write pointer */
-		if ((clone->bi_iter.bi_sector & (zsectors - 1)) != zwp_offset)
+		if ((bdev_offset_from_zone_start(md->disk->part0,
+						 clone->bi_iter.bi_sector)) != zwp_offset)
+
 			return false;
 		break;
 	case REQ_OP_ZONE_APPEND:
@@ -602,11 +604,8 @@  void dm_zone_endio(struct dm_io *io, struct bio *clone)
 		 */
 		if (clone->bi_status == BLK_STS_OK &&
 		    bio_op(clone) == REQ_OP_ZONE_APPEND) {
-			sector_t mask =
-				(sector_t)bdev_zone_sectors(disk->part0) - 1;
-
 			orig_bio->bi_iter.bi_sector +=
-				clone->bi_iter.bi_sector & mask;
+				bdev_offset_from_zone_start(disk->part0, clone->bi_iter.bi_sector);
 		}
 
 		return;