ext4: only set EXT4_MOUNT_QUOTA when journalled quota file is specified

Only set EXT4_MOUNT_QUOTA when journalled quota file is specified,
otherwise simply disabling specific quota type (usrjquota=) will also
set the EXT4_MOUNT_QUOTA super block option.
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Fixes: e6e268cb ("ext4: move quota configuration out of handle_mount_opt()")
Link: https://lore.kernel.org/r/20220104143518.134465-2-lczerner@redhat.comSigned-off-by: Theodore Ts'o <tytso@mit.edu>

fs/ext4/super.c

@@ -2635,12 +2635,13 @@ static void ext4_apply_quota_options(struct fs_context *fc,
 				continue;
 
 			qname = ctx->s_qf_names[i]; /* May be NULL */
+			if (qname)
+				set_opt(sb, QUOTA);
 			ctx->s_qf_names[i] = NULL;
 			qname = rcu_replace_pointer(sbi->s_qf_names[i], qname,
 						lockdep_is_held(&sb->s_umount));
 			if (qname)
 				kfree_rcu(qname);
-			set_opt(sb, QUOTA);
 		}
 	}