Btrfs: Change the super to point to a tree of trees to enable persistent snapshots

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/fs/btrfs/print-tree.c b/fs/btrfs/print-tree.c
index c95c85640aa9..64829b6b90f9 100644
--- a/fs/btrfs/print-tree.c
+++ b/fs/btrfs/print-tree.c
@@ -11,6 +11,7 @@ void btrfs_print_leaf(struct btrfs_leaf *l)
         u32 nr = btrfs_header_nritems(&l->header);
         struct btrfs_item *item;
         struct btrfs_extent_item *ei;
+        struct btrfs_root_item *ri;
         printf("leaf %Lu total ptrs %d free space %d\n",
                 btrfs_header_blocknr(&l->header), nr, btrfs_leaf_free_space(l));
         fflush(stdout);
@@ -23,13 +24,15 @@ void btrfs_print_leaf(struct btrfs_leaf *l)
                         btrfs_key_offset(&item->key),
                         btrfs_item_offset(item),
                         btrfs_item_size(item));
-                fflush(stdout);
                 printf("\t\titem data %.*s\n", btrfs_item_size(item),
                         l->data + btrfs_item_offset(item));
                 ei = (struct btrfs_extent_item *)(l->data +
                                                   btrfs_item_offset(item));
-                printf("\t\textent data refs %u owner %Lu\n", ei->refs,
-                        ei->owner);
+                printf("\t\textent data refs %u owner %Lu\n",
+                        btrfs_extent_refs(ei), btrfs_extent_owner(ei));
+                ri = (struct btrfs_root_item *)ei;
+                printf("\t\troot data blocknr %Lu refs %u\n",
+                        btrfs_root_blocknr(ri), btrfs_root_refs(ri));
                 fflush(stdout);
         }
 }
@@ -71,6 +74,5 @@ void btrfs_print_tree(struct btrfs_root *root, struct btrfs_buffer *t)
                 btrfs_print_tree(root, next_buf);
                 btrfs_block_release(root, next_buf);
         }
-
 }