def_mount_opt 2194 fs/ext4/super.c int def_errors, def_mount_opt = sbi->s_def_mount_opt; def_mount_opt 2209 fs/ext4/super.c if (!nodefs && !(m->mount_opt & (sbi->s_mount_opt ^ def_mount_opt))) def_mount_opt 2244 fs/ext4/super.c (sbi->s_mount_opt ^ def_mount_opt)) {