[PATCH 3/7] Revert "mount.nfs: merge in vers= and nfsvers= options"

[NeilBrown <neilb@suse.de>]

This reverts commit 8110103404b35d9e86057ef0764f8aa87585f455.

Using mnt_alias_tab[] to handle options which are synonyms isn't really
a good fit.  This sort-of works, but in part only because 'strstr()'
is used for matching so "vers=" is found when "nfsvers=" is present.
This doesn't handle other version-setting options like v2, v3, v4.x.

So remove this commit to make room for a better solution.

Signed-off-by: NeilBrown <neilb@suse.de>
---
 utils/mount/configfile.c |    8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/utils/mount/configfile.c b/utils/mount/configfile.c
index 2470bc6a8bf6..e20aa73739fc 100644
--- a/utils/mount/configfile.c
+++ b/utils/mount/configfile.c
@@ -70,7 +70,6 @@ struct mnt_alias {
 	{"background", "bg", MNT_NOARG},
 	{"foreground", "fg", MNT_NOARG},
 	{"sloppy", "sloppy", MNT_NOARG},
-	{"nfsvers", "vers", MNT_UNSET},
 };
 int mnt_alias_sz = (sizeof(mnt_alias_tab)/sizeof(mnt_alias_tab[0]));
 
@@ -296,21 +295,20 @@ conf_parse_mntopts(char *section, char *arg, char *opts)
 
 	list = conf_get_tag_list(section, arg);
 	TAILQ_FOREACH(node, &list->fields, link) {
-		/* check first if this is an alias for another option */
-		field = mountopts_alias(node->field, &argtype);
 		/*
 		 * Do not overwrite options if already exists
 		 */
-		snprintf(buf, BUFSIZ, "%s=", field);
+		snprintf(buf, BUFSIZ, "%s=", node->field);
 		if (opts && strcasestr(opts, buf) != NULL)
 			continue;
 
-		if (lookup_entry(field) != NULL)
+		if (lookup_entry(node->field) != NULL)
 			continue;
 		buf[0] = '\0';
 		value = conf_get_section(section, arg, node->field);
 		if (value == NULL)
 			continue;
+		field = mountopts_alias(node->field, &argtype);
 		if (strcasecmp(value, "false") == 0) {
 			if (argtype != MNT_NOARG)
 				snprintf(buf, BUFSIZ, "no%s", field);