Macros in miscfs/umapfs

• MOUNTTOUMAPMOUNT miscfs/umapfs/umap.h:80
• UMAP_NHASH miscfs/umapfs/umap_subr.c:53
• UMAPTOV miscfs/umapfs/umap.h:82
• UMAPVPTOLOWERVP miscfs/umapfs/umap.h:85
• VTOUMAP miscfs/umapfs/umap.h:81