--- fs/btrfs/ctree.h

+++ fs/btrfs/ctree.h

@@ -1182,6 +1182,8 @@ struct btrfs_root {

#define BTRFS_INODE_DIRSYNC (1 << 10)

+#define BTRFS_INODE_ROOT_ITEM_INIT (1 << 31)

+

/* some macros to generate set/get funcs for the struct fields. This

* assumes there is a lefoo_to_cpu for every type, so lets make a simple

* one for u8:

@@ -2183,6 +2185,8 @@ int btrfs_find_dead_roots(struct btrfs_r

int btrfs_find_orphan_roots(struct btrfs_root *tree_root);

int btrfs_set_root_node(struct btrfs_root_item *item,

struct extent_buffer *node);

+void btrfs_check_and_init_root_item(struct btrfs_root_item *item);

+

/* dir-item.c */

int btrfs_insert_dir_item(struct btrfs_trans_handle *trans,

struct btrfs_root *root, const char *name,