Commit 381a696e authored by Naohiro Aota's avatar Naohiro Aota Committed by David Sterba
Browse files

btrfs: zoned: verify device extent is aligned to zone 



Add a check in verify_one_dev_extent() to ensure that a device extent on
a zoned block device is aligned to the respective zone boundary.

If it isn't, mark the filesystem as unclean.

Reviewed-by: default avatarAnand Jain <anand.jain@oracle.com>
Reviewed-by: default avatarJosef Bacik <josef@toxicpanda.com>
Signed-off-by: default avatarNaohiro Aota <naohiro.aota@wdc.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 1cd6121f

fs/btrfs/volumes.c

+14 −0
Original line number Diff line number Diff line
@@ -7769,6 +7769,20 @@ static int verify_one_dev_extent(struct btrfs_fs_info *fs_info, 
		ret = -EUCLEAN;

		goto out;

	}



	if (dev->zone_info) {

		u64 zone_size = dev->zone_info->zone_size;



		if (!IS_ALIGNED(physical_offset, zone_size) ||

		    !IS_ALIGNED(physical_len, zone_size)) {

			btrfs_err(fs_info,

"zoned: dev extent devid %llu physical offset %llu len %llu is not aligned to device zone",

				  devid, physical_offset, physical_len);

			ret = -EUCLEAN;

			goto out;

		}

	}



out:

	free_extent_map(em);

	return ret;