btrfs: add btrfs_tree_block_status definitions to tree-checker.h

We use this in btrfs-progs to determine if we can fix different types of
corruptions.  We don't care about this in the kernel, however it would
be good to share this code between the kernel and btrfs-progs, so add
the status definitions so we can start converting the tree-checker code
over to using these status flags instead of blanket returning -EUCLEAN.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/tree-checker.h b/fs/btrfs/tree-checker.h
index 48321e8d91bb02ee479a3662142489a383912f0d..78ee2896423d4693ec59e9742ec2a06f7584db31 100644 (file)
--- a/fs/btrfs/tree-checker.h
+++ b/fs/btrfs/tree-checker.h
@@ -40,6 +40,19 @@ struct btrfs_tree_parent_check {
        u8 level;
 };
 
+enum btrfs_tree_block_status {
+       BTRFS_TREE_BLOCK_CLEAN,
+       BTRFS_TREE_BLOCK_INVALID_NRITEMS,
+       BTRFS_TREE_BLOCK_INVALID_PARENT_KEY,
+       BTRFS_TREE_BLOCK_BAD_KEY_ORDER,
+       BTRFS_TREE_BLOCK_INVALID_LEVEL,
+       BTRFS_TREE_BLOCK_INVALID_FREE_SPACE,
+       BTRFS_TREE_BLOCK_INVALID_OFFSETS,
+       BTRFS_TREE_BLOCK_INVALID_BLOCKPTR,
+       BTRFS_TREE_BLOCK_INVALID_ITEM,
+       BTRFS_TREE_BLOCK_INVALID_OWNER,
+};
+
 int btrfs_check_leaf(struct extent_buffer *leaf);
 int btrfs_check_node(struct extent_buffer *node);