--- vfs_mount.c.orig	Tue Feb  3 00:12:07 2004
+++ vfs_mount.c	Tue Feb  3 00:15:04 2004
@@ -110,8 +110,9 @@ static int	vfs_mountroot_ask(void);
 static int	vfs_mountroot_try(char *mountfrom);
 static int	vfs_nmount(struct thread *td, int fsflags, struct uio *fsopts);
 
-static int	usermount = 0;	/* if 1, non-root can mount fs. */
-SYSCTL_INT(_vfs, OID_AUTO, usermount, CTLFLAG_RW, &usermount, 0, "");
+static int	usermount = 0;
+SYSCTL_INT(_vfs, OID_AUTO, usermount, CTLFLAG_RW, &usermount, 0,
+    "Permit unprivileged users mount/unmount file systems");
 
 MALLOC_DEFINE(M_MOUNT, "mount", "vfs mount structure");