All symbols starting with `n' in bsd/miscfs/umapfs

• NOBODY bsd/miscfs/umapfs/umap.h:65
• NULL bsd/miscfs/umapfs/umap_vnops.c:517
• NULLGROUP bsd/miscfs/umapfs/umap.h:66
• NUMAPNODECACHE bsd/miscfs/umapfs/umap_subr.c:75