iu_uuid_str 223 fs/ocfs2/ioctl.c memcpy(oiu.iu_uuid_str, osb->uuid_str, OCFS2_TEXT_UUID_LEN + 1); iu_uuid_str 121 fs/ocfs2/ocfs2_ioctl.h __u8 iu_uuid_str[OCFS2_TEXT_UUID_LEN + 1];