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    Subject2.4.3-pre7 and p*_alloc

    I'm looking at re-implementing the ARM page table allocation macros
    required for 2.4.3-pre7, and have found the following:

    pte_t *pte_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long address)
    if (!pmd_present(*pmd)) {

    Why do we use pmd_present here instead of pmd_none? The same question
    applies to __pmd_alloc.

    Russell King ( The developer of ARM Linux

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      Last update: 2005-03-22 13:17    [W:0.020 / U:6.448 seconds]
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