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    SubjectRe: [RFC][PATCH] nameing reserved pages [0/3]
    On Wed, 2005-04-20 at 21:02 +0900, KAMEZAWA Hiroyuki wrote:
    > Hi,
    > There are several types of PG_reserved pages,
    > (a) Memory Hole
    > (b) Used by Kernel
    > (c) Set by drivers
    > (d) Isorated by MCA
    > (e) used by perfmon
    > etc....
    > I think it's useful to distinguish many types of PG_reserved pages.

    I'm not so sure about this. at all.

    > For example, Memory Hotplug can ignore (a).

    Memory Hotplug can also use page_is_ram().

    /dev/memstate really looks like a bad idea to me as well... I rather
    have less than more /dev/*mem*

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