DEF_ADDRS_PER_BLOCK
get_inline_xattr_addrs(inode)) : DEF_ADDRS_PER_BLOCK;
max_addrs = DEF_ADDRS_PER_BLOCK;
leaf_count = DEF_ADDRS_PER_BLOCK;
__le32 addr[DEF_ADDRS_PER_BLOCK]; /* array of data block address */