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    SubjectRe: [patch] vmalloc_to_page() backport for 2.4
    On Tue, 19 Mar 2002, Arjan van de Ven wrote:
    > On Thu, Mar 14, 2002 at 02:46:39PM +0000, Hugh Dickins wrote:
    > >
    > > Few modules take an interest in ptes, that's as it should be, and so
    > > few modules build to different binaries with CONFIG_X86_PAE off or on
    > > (modulo module versions).
    > Well dma_addr_t and some others also change size..... struct page also
    > changes quite a bit

    I believe it's CONFIG_HIGHMEM you're thinking of there: dma_addr_t
    and struct page do depend on CONFIG_NOHIGHMEM/CONFIG_HIGHMEM in recent

    I don't know why it's CONFIG_HIGHMEM rather than CONFIG_HIGHMEM64G
    that decides the u64-ness dma_addr_t. There is a dmaaddr_high_t
    which behaves more expectedly, but it's not so widely used.


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