All symbols starting with `u' in bsd/ufs/ffs

• ufslabel bsd/ufs/ffs/fs.h:547
• UFS_LABEL_MAGIC bsd/ufs/ffs/fs.h:541
• UFS_LABEL_OFFSET bsd/ufs/ffs/fs.h:543
• UFS_LABEL_SIZE bsd/ufs/ffs/fs.h:542
• UFS_LABEL_VERSION bsd/ufs/ffs/fs.h:544
• UFS_MAX_LABEL_NAME bsd/ufs/ffs/fs.h:545
• ul_unused bsd/ufs/ffs/fs.h:556