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path: root/drivers/md/dm-zoned-target.c
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Diffstat (limited to 'drivers/md/dm-zoned-target.c')
-rw-r--r--drivers/md/dm-zoned-target.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/md/dm-zoned-target.c b/drivers/md/dm-zoned-target.c
index b87c1741da4b..6d7bda6f8190 100644
--- a/drivers/md/dm-zoned-target.c
+++ b/drivers/md/dm-zoned-target.c
@@ -660,6 +660,7 @@ static int dmz_get_zoned_device(struct dm_target *ti, char *path)
struct dmz_target *dmz = ti->private;
struct request_queue *q;
struct dmz_dev *dev;
+ sector_t aligned_capacity;
int ret;
/* Get the target device */
@@ -685,15 +686,17 @@ static int dmz_get_zoned_device(struct dm_target *ti, char *path)
goto err;
}
+ q = bdev_get_queue(dev->bdev);
dev->capacity = i_size_read(dev->bdev->bd_inode) >> SECTOR_SHIFT;
- if (ti->begin || (ti->len != dev->capacity)) {
+ aligned_capacity = dev->capacity & ~(blk_queue_zone_sectors(q) - 1);
+ if (ti->begin ||
+ ((ti->len != dev->capacity) && (ti->len != aligned_capacity))) {
ti->error = "Partial mapping not supported";
ret = -EINVAL;
goto err;
}
- q = bdev_get_queue(dev->bdev);
- dev->zone_nr_sectors = q->limits.chunk_sectors;
+ dev->zone_nr_sectors = blk_queue_zone_sectors(q);
dev->zone_nr_sectors_shift = ilog2(dev->zone_nr_sectors);
dev->zone_nr_blocks = dmz_sect2blk(dev->zone_nr_sectors);
@@ -929,8 +932,10 @@ static int dmz_iterate_devices(struct dm_target *ti,
iterate_devices_callout_fn fn, void *data)
{
struct dmz_target *dmz = ti->private;
+ struct dmz_dev *dev = dmz->dev;
+ sector_t capacity = dev->capacity & ~(dev->zone_nr_sectors - 1);
- return fn(ti, dmz->ddev, 0, dmz->dev->capacity, data);
+ return fn(ti, dmz->ddev, 0, capacity, data);
}
static struct target_type dmz_type = {