BTRFS_BTREE_INODE_OBJECTID
return btrfs_ino(inode) != BTRFS_BTREE_INODE_OBJECTID;
unsigned long hash = btrfs_inode_hash(BTRFS_BTREE_INODE_OBJECTID,
btrfs_set_inode_number(BTRFS_I(inode), BTRFS_BTREE_INODE_OBJECTID);
args->ino != BTRFS_BTREE_INODE_OBJECTID)