SYSFS_PREALLOC
return reg & ETR3_CF9LOCK ? attr->mode & (SYSFS_PREALLOC | 0444) : attr->mode;
if (mode & SYSFS_PREALLOC) {
WARN(mode & ~(SYSFS_PREALLOC | 0664),
mode &= SYSFS_PREALLOC | 0664;
WARN(mode & ~(SYSFS_PREALLOC | 0664),
mode &= SYSFS_PREALLOC | 0664;
.mode = SYSFS_PREALLOC | VERIFY_OCTAL_PERMISSIONS(_mode) },\