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)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 96c0592c684964fe1b6c5dcf2fb2d537823ad1bd..dfe6df8e5910699e1ae42211680b4c83a43c4c4e 100644 (file)
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -6495,6 +6495,9 @@ 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;
                }