A feeble attempt at kld compatability. The mount_* programs assume that

they cannot mount a filesystem that they cannot see in getvfsbyname().
Part 1 of this is a hack, make vfsisloadable() always return true - the
ultimate decider of whether it's loadable or not is kldload() or mount().
Part 2 of this is to have vfsload() call kldload(2) and return success if
it works.  This means that we will use a viable kld module in preference
to an LKM!
Ultimately, the thing to do is remove the hacks to do a vfsload in all the
mount_* commands and let the kernel do it by itself in mount(2).

lib/libc/gen/getvfsent.c

@@ -193,6 +193,7 @@ vfspath(const char *name)
 int
 vfsisloadable(const char *name)
 {
+#if 0
 	int fd;
 
 	fd = open("/dev/lkm", O_RDWR, 0);
@@ -202,16 +203,24 @@ vfsisloadable(const char *name)
 	close(fd);
 
 	return !!vfspath(name);
+#else
+	return 1;
+#endif
 }
 
 int
 vfsload(const char *name)
 {
-	const char *path = vfspath(name);
+	const char *path;
 	char name_mod[sizeof("_mod") + strlen(name)];
 	pid_t pid;
 	int status;
 
+	status = kldload(name);
+	if (status != -1)
+		return 0;
+
+	path = vfspath(name);
 	if(!path) {
 		errno = ENOENT;
 		return -1;