This patch add a verification in verify_one_dev_extent() to check if the
device extent is aligned to zone boundary.
Signed-off-by: Naohiro Aota <naohiro.aota@xxxxxxx>
---
fs/btrfs/volumes.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 3b6f07330553..c22ea7f0551f 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -7779,6 +7779,20 @@ 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,
+"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;
--
2.27.0
