Macros in miscfs/umapfs

• MOUNTTOUMAPMOUNT miscfs/umapfs/umap.h:79
• UMAP_NHASH miscfs/umapfs/umap_subr.c:54
• UMAPTOV miscfs/umapfs/umap.h:81
• UMAPVPTOLOWERVP miscfs/umapfs/umap.h:84
• VTOUMAP miscfs/umapfs/umap.h:80