btrfs: extend btrfs_leaf_check to return btrfs_tree_block_status

Instead of blanket returning -EUCLEAN for all the failures in
btrfs_check_leaf, use btrfs_tree_block_status and return the appropriate
status for each failure.  Rename the helper to __btrfs_check_leaf and
then make a wrapper of btrfs_check_leaf that will return -EUCLEAN to
non-clean error codes.  This will allow us to have the
__btrfs_check_leaf variant in btrfs-progs while keeping the behavior in
the kernel consistent.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/fs/btrfs/tree-checker.h b/fs/btrfs/tree-checker.h
index 78ee2896423d..3b8de6d36141 100644
--- a/fs/btrfs/tree-checker.h
+++ b/fs/btrfs/tree-checker.h
@@ -53,6 +53,12 @@ enum btrfs_tree_block_status {
 	BTRFS_TREE_BLOCK_INVALID_OWNER,
 };
 
+/*
+ * Exported simply for btrfs-progs which wants to have the
+ * btrfs_tree_block_status return codes.
+ */
+enum btrfs_tree_block_status __btrfs_check_leaf(struct extent_buffer *leaf);
+
 int btrfs_check_leaf(struct extent_buffer *leaf);
 int btrfs_check_node(struct extent_buffer *node);