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Message-Id: <20220811143043.126029-11-p.raghav@samsung.com>
Date: Thu, 11 Aug 2022 16:30:40 +0200
From: Pankaj Raghav <p.raghav@...sung.com>
To: snitzer@...nel.org, axboe@...nel.dk, hch@....de, agk@...hat.com,
damien.lemoal@...nsource.wdc.com
Cc: linux-block@...r.kernel.org, Johannes.Thumshirn@....com,
bvanassche@....org, matias.bjorling@....com, hare@...e.de,
gost.dev@...sung.com, linux-nvme@...ts.infradead.org,
jaegeuk@...nel.org, pankydev8@...il.com,
linux-kernel@...r.kernel.org, dm-devel@...hat.com,
Pankaj Raghav <p.raghav@...sung.com>
Subject: [PATCH v10 10/13] dm-table: allow zoned devices with non power-of-2
zone sizes
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@...sung.com>
Reviewed-by: Bart Van Assche <bvanassche@....org>
Reviewed-by: Damien Le Moal <damien.lemoal@...nsource.wdc.com>
---
drivers/md/dm-table.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
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)) {
--
2.25.1
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