커널 데몬 중지나 옵션등으로 디스크 i/o 발생을 막을 수 있는 방법이 없을까요?

 // kupdate.c
static void pdflush_stop(kupdate_t k)
{
    long interval;
 
    if (!k)
        return;
 
 
    if (!pdflush_get_interval(k, &k->interval)) {
        ERR("Failed to get pdflush interval");
        return;
    }
 
    if (!pdflush_set_interval(k, 0))
        ERR("Failed to stop pdflush");
    else {
        /* Need to wait until all pending pdflush timers have
        * expired. Unfortunately there's no way to kick them. */
        sleep(k->fixup_interval(k->interval));
 
        DEBUG("pdflush stopped");
        k->stopped = 1;
    }
 
}
 
static int pdflush_set_interval(kupdate_t k, long interval)
{
    rewind(k->f);
    if (fprintf(k->f, "%ld\n", interval) < 0) {
        ERR("Failed to set net update interval");
        return 0;
    }
 
    return 1;
} 
 
※ k->f=fopen("/proc/sys/vm/dirty_writeback_centisecs", "w+");