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    SubjectRe: [RFC][PATCH 1/3] contigous big page allocator
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    On Wed, 13 Oct 2010 09:01:43 +0200
    Andi Kleen <andi@firstfloor.org> wrote:

    > KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> writes:
    > >
    > > What this wants to do:
    > > allocates a contiguous chunk of pages larger than MAX_ORDER.
    > > for device drivers (camera? etc..)
    >
    > I think to really move forward you need a concrete use case
    > actually implemented in tree.

    As already pointed out, some embeded drivers need physcailly
    contignous memory. Currenlty, they use hacky tricks (e.g. playing with
    the boot memory allocators). There are several proposals for this like
    adding a new kernel memory allocator (from samsung).

    It's ideal if the memory allocator can handle this, I think.


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