diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
index e3f7d345..3e7ba5f0 100644
--- a/mkfs/xfs_mkfs.c
+++ b/mkfs/xfs_mkfs.c
@@ -813,6 +813,124 @@ get_conf_raw_safe(const int opt, const int subopt)
 	return str;
 }
 
+static __attribute__((noreturn)) void
+illegal_option(
+	const char		*value,
+	struct opt_params	*opts,
+	int			index,
+	const char		*reason)
+{
+	fprintf(stderr,
+		_("Illegal value %s for -%c %s option. %s\n"),
+		value, opts->name, opts->subopts[index],
+		reason ? reason : "");
+	usage();
+}
+
+/*
+ * Check for conflicts and option respecification.
+ */
+static void
+check_opt(
+	struct opt_params	*opts,
+	int			index,
+	bool			str_seen)
+{
+	struct subopt_param	*sp = &opts->subopt_params[index];
+	int			i;
+
+	if (sp->index != index) {
+		fprintf(stderr,
+	("Developer screwed up option parsing (%d/%d)! Please report!\n"),
+			sp->index, index);
+		reqval(opts->name, (char **)opts->subopts, index);
+	}
+
+	/*
+	 * Check for respecification of the option. This is more complex than it
+	 * seems because some options are parsed twice - once as a string during
+	 * input parsing, then later the string is passed to getnum for
+	 * conversion into a number and bounds checking. Hence the two variables
+	 * used to track the different uses based on the @str parameter passed
+	 * to us.
+	 */
+	if (!str_seen) {
+		if (sp->seen)
+			respec(opts->name, (char **)opts->subopts, index);
+		sp->seen = true;
+	} else {
+		if (sp->str_seen)
+			respec(opts->name, (char **)opts->subopts, index);
+		sp->str_seen = true;
+	}
+
+	/* check for conflicts with the option */
+	for (i = 0; i < MAX_CONFLICTS; i++) {
+		int conflict_opt = sp->conflicts[i];
+
+		if (conflict_opt == LAST_CONFLICT)
+			break;
+		if (opts->subopt_params[conflict_opt].seen ||
+		    opts->subopt_params[conflict_opt].str_seen)
+			conflict(opts->name, (char **)opts->subopts,
+				 conflict_opt, index);
+	}
+}
+
+static long long
+getnum(
+	const char		*str,
+	struct opt_params	*opts,
+	int			index)
+{
+	struct subopt_param	*sp = &opts->subopt_params[index];
+	long long		c;
+
+	check_opt(opts, index, false);
+	set_conf_raw(opts->index, index, str);
+	/* empty strings might just return a default value */
+	if (!str || *str == '\0') {
+		if (sp->flagval == SUBOPT_NEEDS_VAL)
+			reqval(opts->name, (char **)opts->subopts, index);
+		return sp->flagval;
+	}
+
+	if (sp->minval == 0 && sp->maxval == 0) {
+		fprintf(stderr,
+			_("Option -%c %s has undefined minval/maxval."
+			  "Can't verify value range. This is a bug.\n"),
+			opts->name, opts->subopts[index]);
+		exit(1);
+	}
+
+	/*
+	 * Some values are pure numbers, others can have suffixes that define
+	 * the units of the number. Those get passed to cvtnum(), otherwise we
+	 * convert it ourselves to guarantee there is no trailing garbage in the
+	 * number.
+	 */
+	if (sp->convert)
+		c = cvtnum(blocksize, sectorsize, str);
+	else {
+		char		*str_end;
+
+		c = strtoll(str, &str_end, 0);
+		if (c == 0 && str_end == str)
+			illegal_option(str, opts, index, NULL);
+		if (*str_end != '\0')
+			illegal_option(str, opts, index, NULL);
+	}
+
+	/* Validity check the result. */
+	if (c < sp->minval)
+		illegal_option(str, opts, index, _("value is too small"));
+	else if (c > sp->maxval)
+		illegal_option(str, opts, index, _("value is too large"));
+	if (sp->is_power_2 && !ispow2(c))
+		illegal_option(str, opts, index, _("value must be a power of 2"));
+	return c;
+}
+
 /*
  * Convert lsu to lsunit for 512 bytes blocks and check validity of the values.
  */
@@ -1337,124 +1455,6 @@ sb_set_features(
 
 }
 
-static __attribute__((noreturn)) void
-illegal_option(
-	const char		*value,
-	struct opt_params	*opts,
-	int			index,
-	const char		*reason)
-{
-	fprintf(stderr,
-		_("Illegal value %s for -%c %s option. %s\n"),
-		value, opts->name, opts->subopts[index],
-		reason ? reason : "");
-	usage();
-}
-
-/*
- * Check for conflicts and option respecification.
- */
-static void
-check_opt(
-	struct opt_params	*opts,
-	int			index,
-	bool			str_seen)
-{
-	struct subopt_param	*sp = &opts->subopt_params[index];
-	int			i;
-
-	if (sp->index != index) {
-		fprintf(stderr,
-	("Developer screwed up option parsing (%d/%d)! Please report!\n"),
-			sp->index, index);
-		reqval(opts->name, (char **)opts->subopts, index);
-	}
-
-	/*
-	 * Check for respecification of the option. This is more complex than it
-	 * seems because some options are parsed twice - once as a string during
-	 * input parsing, then later the string is passed to getnum for
-	 * conversion into a number and bounds checking. Hence the two variables
-	 * used to track the different uses based on the @str parameter passed
-	 * to us.
-	 */
-	if (!str_seen) {
-		if (sp->seen)
-			respec(opts->name, (char **)opts->subopts, index);
-		sp->seen = true;
-	} else {
-		if (sp->str_seen)
-			respec(opts->name, (char **)opts->subopts, index);
-		sp->str_seen = true;
-	}
-
-	/* check for conflicts with the option */
-	for (i = 0; i < MAX_CONFLICTS; i++) {
-		int conflict_opt = sp->conflicts[i];
-
-		if (conflict_opt == LAST_CONFLICT)
-			break;
-		if (opts->subopt_params[conflict_opt].seen ||
-		    opts->subopt_params[conflict_opt].str_seen)
-			conflict(opts->name, (char **)opts->subopts,
-				 conflict_opt, index);
-	}
-}
-
-static long long
-getnum(
-	const char		*str,
-	struct opt_params	*opts,
-	int			index)
-{
-	struct subopt_param	*sp = &opts->subopt_params[index];
-	long long		c;
-
-	check_opt(opts, index, false);
-	set_conf_raw(opts->index, index, str);
-	/* empty strings might just return a default value */
-	if (!str || *str == '\0') {
-		if (sp->flagval == SUBOPT_NEEDS_VAL)
-			reqval(opts->name, (char **)opts->subopts, index);
-		return sp->flagval;
-	}
-
-	if (sp->minval == 0 && sp->maxval == 0) {
-		fprintf(stderr,
-			_("Option -%c %s has undefined minval/maxval."
-			  "Can't verify value range. This is a bug.\n"),
-			opts->name, opts->subopts[index]);
-		exit(1);
-	}
-
-	/*
-	 * Some values are pure numbers, others can have suffixes that define
-	 * the units of the number. Those get passed to cvtnum(), otherwise we
-	 * convert it ourselves to guarantee there is no trailing garbage in the
-	 * number.
-	 */
-	if (sp->convert)
-		c = cvtnum(blocksize, sectorsize, str);
-	else {
-		char		*str_end;
-
-		c = strtoll(str, &str_end, 0);
-		if (c == 0 && str_end == str)
-			illegal_option(str, opts, index, NULL);
-		if (*str_end != '\0')
-			illegal_option(str, opts, index, NULL);
-	}
-
-	/* Validity check the result. */
-	if (c < sp->minval)
-		illegal_option(str, opts, index, _("value is too small"));
-	else if (c > sp->maxval)
-		illegal_option(str, opts, index, _("value is too large"));
-	if (sp->is_power_2 && !ispow2(c))
-		illegal_option(str, opts, index, _("value must be a power of 2"));
-	return c;
-}
-
 /*
  * Option is a string - do all the option table work, and check there
  * is actually an option string. Otherwise we don't do anything with the string
