btrfs: verbose error when we find an unexpected item in sys_array

Signed-off-by: David Sterba <dsterba@suse.com>
(cherry picked from commit 93a3d46780b0f207f76608078eb965cf7b83902c)
(cherry picked from commit e232710264ab80a581769fa5de6ea22f697eb398)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index b3c2bcb8c4f51ff91860dedd1f74291be646c734..0d2120daf540af1751985439365ed3ea02c88c89 100644 (file)
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -6611,6 +6611,9 @@ int btrfs_read_sys_array(struct btrfs_root *root)
                        if (ret)
                                break;
                } else {
+                       printk(KERN_ERR
+               "BTRFS: unexpected item type %u in sys_array at offset %u\n",
+                               (u32)key.type, cur_offset);
                        ret = -EIO;
                        break;
                }