diff mbox series

[v12,10/13] dm-table: allow zoned devices with non power-of-2 zone sizes

Message ID 20220823121859.163903-11-p.raghav@samsung.com (mailing list archive)
State Accepted, archived
Delegated to: Mike Snitzer
Headers show
Series support zoned block devices with non-power-of-2 zone sizes | expand

Commit Message

Pankaj Raghav Aug. 23, 2022, 12:18 p.m. UTC 
Allow dm to support zoned devices with non power-of-2(po2) zone sizes as
the block layer now supports it.

Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
---
 drivers/md/dm-table.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

Comments

Mike Snitzer Sept. 2, 2022, 12:17 a.m. UTC | #1 
On Tue, Aug 23 2022 at  8:18P -0400,
Pankaj Raghav <p.raghav@samsung.com> wrote:

> Allow dm to support zoned devices with non power-of-2(po2) zone sizes as
> the block layer now supports it.
> 
> Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
> Reviewed-by: Bart Van Assche <bvanassche@acm.org>
> Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>

Reviewed-by: Mike Snitzer <snitzer@kernel.org>

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diff mbox series

Patch

diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 332f96b58252..31eb1d29d136 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -250,7 +250,7 @@  static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
 	if (bdev_is_zoned(bdev)) {
 		unsigned int zone_sectors = bdev_zone_sectors(bdev);
 
-		if (start & (zone_sectors - 1)) {
+		if (!bdev_is_zone_start(bdev, start)) {
 			DMWARN("%s: start=%llu not aligned to h/w zone size %u of %pg",
 			       dm_device_name(ti->table->md),
 			       (unsigned long long)start,
@@ -267,7 +267,7 @@  static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
 		 * devices do not end up with a smaller zone in the middle of
 		 * the sector range.
 		 */
-		if (len & (zone_sectors - 1)) {
+		if (!bdev_is_zone_start(bdev, len)) {
 			DMWARN("%s: len=%llu not aligned to h/w zone size %u of %pg",
 			       dm_device_name(ti->table->md),
 			       (unsigned long long)len,
@@ -1642,8 +1642,7 @@  static int validate_hardware_zoned_model(struct dm_table *t,
 		return -EINVAL;
 	}
 
-	/* Check zone size validity and compatibility */
-	if (!zone_sectors || !is_power_of_2(zone_sectors))
+	if (!zone_sectors)
 		return -EINVAL;
 
 	if (dm_table_any_dev_attr(t, device_not_matches_zone_sectors, &zone_sectors)) {