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    SubjectRe: [ckrm-tech] [RFC][PATCH 5/7] UBC: kernel memory accounting (core)
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    On Fri, 2006-08-18 at 12:12 +0400, Kirill Korotaev wrote:
    > LDT takes from 1 to 16 pages. and is allocated by vmalloc.
    > do you propose to replace it with slab which can fail due to memory
    > fragmentation?

    Nope. ;)

    > the same applies to fdset, fdarray, ipc ids and iptables entries.

    The vmalloc area, along with all of those other structures _have_ other
    data structures. Now, it will take a wee bit more patching to directly
    tag those thing with explicit container pointers (or accounting
    references), but I would much prefer that, especially for the things
    that are larger than a page.

    I worry that this approach was used instead of patching all of the
    individual subsystems because this was easier to maintain as an
    out-of-tree patch, and it isn't necessarily the best approach.

    -- Dave

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