EXT4_MOUNT_JOURNAL_CHECKSUM
{Opt_nojournal_checksum, EXT4_MOUNT_JOURNAL_CHECKSUM,
{Opt_journal_checksum, EXT4_MOUNT_JOURNAL_CHECKSUM,
EXT4_MOUNT_JOURNAL_CHECKSUM),
} else if (m->mount_opt & EXT4_MOUNT_JOURNAL_CHECKSUM) {
sbi->s_def_mount_opt &= ~EXT4_MOUNT_JOURNAL_CHECKSUM;
if ((old_opts.s_mount_opt & EXT4_MOUNT_JOURNAL_CHECKSUM) ^
sbi->s_mount_opt ^= EXT4_MOUNT_JOURNAL_CHECKSUM;