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

• NOBODY bsd/miscfs/umapfs/umap.h:68
• NULL bsd/miscfs/umapfs/umap_vnops.c:520
• NULLGROUP bsd/miscfs/umapfs/umap.h:69
• NUMAPNODECACHE bsd/miscfs/umapfs/umap_subr.c:78