page table questions

From	meng chen <cmhanjey@gmail.com>
Newsgroups	linux.kernel
Subject	page table questions
Date	2017-06-07 07:30 +0200
Message-ID	<tPBHz-2hD-5@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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hello ,how to know wheather a pmd maps a 2M physical page or not??
if(pmd_trans_huge(*pmd)){
    if(pte_present(*pmd)){
            /*page is in ram?*/
      }
}

can I judge it according the above codes??
thanks a lot!!

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page table questions meng chen <cmhanjey@gmail.com> - 2017-06-07 07:30 +0200

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