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

• dblksize bsd/ufs/ffs/fs.h:502
• dbtofsb bsd/ufs/ffs/fs.h:413
• DEFAULTOPT bsd/ufs/ffs/fs.h:160
• doasyncfree bsd/ufs/ffs/ffs_alloc.c:384
• doclusterread bsd/ufs/ffs/ffs_vnops.c:263
• doclusterwrite bsd/ufs/ffs/ffs_vnops.c:264
• doreallocblks bsd/ufs/ffs/ffs_alloc.c:385
• DOUBLE bsd/ufs/ffs/ffs_inode.c:182
• dtog bsd/ufs/ffs/fs.h:443
• dtogd bsd/ufs/ffs/fs.h:444