All symbols starting with `b' in ufs/ffs

• BBLOCK ufs/ffs/fs.h:64
• BBOFF ufs/ffs/fs.h:62
• BBSIZE ufs/ffs/fs.h:60
• blkmap ufs/ffs/fs.h:425
• blknum ufs/ffs/fs.h:459
• blkoff ufs/ffs/fs.h:439
• blkroundup ufs/ffs/fs.h:449
• blksize ufs/ffs/fs.h:473
• blkstofrags ufs/ffs/fs.h:455