FMODE_RANDOM
priv->file_ra_disabled = file->f_mode & FMODE_RANDOM;
filp->f_mode &= ~FMODE_RANDOM;
filp->f_mode &= ~FMODE_RANDOM;
filp->f_mode |= FMODE_RANDOM;
file->f_mode &= ~(FMODE_RANDOM | FMODE_NOREUSE);
file->f_mode |= FMODE_RANDOM;
file->f_mode &= ~FMODE_RANDOM;
bool do_forced_ra = ractl->file && (ractl->file->f_mode & FMODE_RANDOM);