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

• nextgennumber bsd/ufs/ffs/ffs_alloc.c:86
• NINDIR bsd/ufs/ffs/fs.h:523
• NSPB bsd/ufs/ffs/fs.h:511
• NSPF bsd/ufs/ffs/fs.h:512
• NULL bsd/ufs/ffs/ffs_vnops.c:145
• numfrags bsd/ufs/ffs/fs.h:472