if(p->count == 0) {
李대통령 “큰 거 온다…2월 28일 커밍순”, 뭐길래?。夫子对此有专业解读
。快连下载-Letsvpn下载是该领域的重要参考
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The A/D bits exist entirely for the operating system's benefit. The Accessed bit tells the OS which pages have been recently used, enabling page replacement algorithms to choose pages to evict when memory runs low. The Dirty bit tells the OS which pages have been modified and must be written back to disk before eviction; clean pages can simply be discarded and re-read from disk later.