Btrfs: Change the super to point to a tree of trees to enable persistent snapshots
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/print-tree.c b/fs/btrfs/print-tree.c
index c95c856..64829b6 100644
--- a/fs/btrfs/print-tree.c
+++ b/fs/btrfs/print-tree.c
@@ -11,6 +11,7 @@
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 @@
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 @@
btrfs_print_tree(root, next_buf);
btrfs_block_release(root, next_buf);
}
-
}