ext4: ignore quota mount options if the quota feature is enabled

commit c325a67c72903e1cc30e990a15ce745bda0dbfde upstream.

Previously, ext4 would fail the mount if the file system had the quota
feature enabled and quota mount options (used for the older quota
setups) were present.  This broke xfstests, since xfs silently ignores
the usrquote and grpquota mount options if they are specified.  This
commit changes things so that we are consistent with xfs; having the
mount options specified is harmless, so no sense break users by
forbidding them.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index b54cb0025646776ad283cca246f9eacc77dbfac4..ba1cf0bf2f818da40d036db75aa8191a47673c27 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1292,9 +1292,9 @@ static int set_qf_name(struct super_block *sb, int qtype, substring_t *args)
                return -1;
        }
        if (ext4_has_feature_quota(sb)) {
-               ext4_msg(sb, KERN_ERR, "Cannot set journaled quota options "
-                        "when QUOTA feature is enabled");
-               return -1;
+               ext4_msg(sb, KERN_INFO, "Journaled quota options "
+                        "ignored when QUOTA feature is enabled");
+               return 1;
        }
        qname = match_strdup(args);
        if (!qname) {
@@ -1657,10 +1657,10 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token,
                        return -1;
                }
                if (ext4_has_feature_quota(sb)) {
-                       ext4_msg(sb, KERN_ERR,
-                                "Cannot set journaled quota options "
+                       ext4_msg(sb, KERN_INFO,
+                                "Quota format mount options ignored "
                                 "when QUOTA feature is enabled");
-                       return -1;
+                       return 1;
                }
                sbi->s_jquota_fmt = m->mount_opt;
 #endif
@@ -1721,11 +1721,11 @@ static int parse_options(char *options, struct super_block *sb,
 #ifdef CONFIG_QUOTA
        if (ext4_has_feature_quota(sb) &&
            (test_opt(sb, USRQUOTA) || test_opt(sb, GRPQUOTA))) {
-               ext4_msg(sb, KERN_ERR, "Cannot set quota options when QUOTA "
-                        "feature is enabled");
-               return 0;
-       }
-       if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
+               ext4_msg(sb, KERN_INFO, "Quota feature enabled, usrquota and grpquota "
+                        "mount options ignored.");
+               clear_opt(sb, USRQUOTA);
+               clear_opt(sb, GRPQUOTA);
+       } else if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
                if (test_opt(sb, USRQUOTA) && sbi->s_qf_names[USRQUOTA])
                        clear_opt(sb, USRQUOTA);