We need to cast zone_sectors from u32 to u64 when setting the zone_size, or
it set the zone size = 0 when the size >= 4G.
Fixes: 5b316468983d ("btrfs: get zone information of zoned block devices")
Signed-off-by: Naohiro Aota <naohiro.aota@xxxxxxx>
---
fs/btrfs/zoned.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index 40cb99854844..4de82da39c10 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -312,7 +312,7 @@ int btrfs_get_dev_zone_info(struct btrfs_device *device)
nr_sectors = bdev_nr_sectors(bdev);
/* Check if it's power of 2 (see is_power_of_2) */
ASSERT(zone_sectors != 0 && (zone_sectors & (zone_sectors - 1)) == 0);
- zone_info->zone_size = zone_sectors << SECTOR_SHIFT;
+ zone_info->zone_size = (u64)zone_sectors << SECTOR_SHIFT;
zone_info->zone_size_shift = ilog2(zone_info->zone_size);
zone_info->max_zone_append_size =
(u64)queue_max_zone_append_sectors(queue) << SECTOR_SHIFT;
--
2.30.1
