ext4: move option validation to a separate function

Move option validation out of parse_options() into a separate function
ext4_validate_options().

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Link: https://lore.kernel.org/r/20211027141857.33657-4-lczerner@redhat.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index fb59649..e62187b 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -88,6 +88,7 @@ static void ext4_unregister_li_request(struct super_block *sb);
 static void ext4_clear_request_list(void);
 static struct inode *ext4_get_journal_inode(struct super_block *sb,
                                            unsigned int journal_inum);
+static int ext4_validate_options(struct super_block *sb);
 
 /*
  * Lock ordering
@@ -2582,10 +2583,9 @@ static int parse_options(char *options, struct super_block *sb,
                         struct ext4_parsed_options *ret_opts,
                         int is_remount)
 {
-       struct ext4_sb_info __maybe_unused *sbi = EXT4_SB(sb);
-       char *p, __maybe_unused *usr_qf_name, __maybe_unused *grp_qf_name;
        substring_t args[MAX_OPT_ARGS];
        int token;
+       char *p;
 
        if (!options)
                return 1;
@@ -2603,7 +2603,14 @@ static int parse_options(char *options, struct super_block *sb,
                                     is_remount) < 0)
                        return 0;
        }
+       return ext4_validate_options(sb);
+}
+
+static int ext4_validate_options(struct super_block *sb)
+{
+       struct ext4_sb_info *sbi = EXT4_SB(sb);
 #ifdef CONFIG_QUOTA
+       char *usr_qf_name, *grp_qf_name;
        /*
         * We do the test below only for project quotas. 'usrquota' and
         * 'grpquota' mount options are allowed even without quota feature