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    SubjectRe: [PATCH 00/18] Make common x86 arch area for i386 and x86_64 - Take 2
    From: Christoph Lameter <>
    Date: Fri, 16 Mar 2007 13:52:18 -0700 (PDT)

    > Virtual mmap allows holes in the same way as page tables do.

    I don't want to take expensive TLB misses to lookup a page.

    Don't force a virtual mapping solution down my throat if that
    is not what I believe as a platform maintainer works best
    for me.

    TLB misses are extremely expensive on some platforms, that's why
    I try to make all the critical structures go through the 4MB
    locked TLB entry for the kernel image, or failing that the
    4MB linear mappings at PAGE_OFFSET on sparc64.
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