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    SubjectRe: [PATCH v3] fusion: remove dead MTRR code
    On Tue, Apr 21, 2015 at 1:46 PM, Luis R. Rodriguez
    <mcgrof@do-not-panic.com> wrote:
    > From: "Luis R. Rodriguez" <mcgrof@suse.com>
    >
    > If and when this gets enabled the driver could should split
    > up IO memory space properly and that is quite a bit of work.
    > Just remove the uncommented dead MTRR code then.
    >
    > There are a few motivations for this:
    >
    > a) Take advantage of PAT when available
    >
    > b) Help bury MTRR code away, MTRR is architecture specific and on
    > x86 its replaced by PAT
    >
    > c) Help with the goal of eventually using _PAGE_CACHE_UC over
    > _PAGE_CACHE_UC_MINUS on x86 on ioremap_nocache() (see commit
    > de33c442e titled "x86 PAT: fix performance drop for glx,
    > use UC minus for ioremap(), ioremap_nocache() and
    > pci_mmap_page_range()")

    Hey folks, who's tree should this go through if agreeable?

    Luis


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