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    SubjectRe: [RFC][PATCH 0/7][memcg] towards I/O aware memory cgroup
    On Tue, 27 Jul 2010 16:51:55 +0900
    KAMEZAWA Hiroyuki <> wrote:

    > From a view of patch management, this set is a mixture of a few features for
    > memcg, and I should divide them to some groups. But, at first, I'd like to
    > show the total view. This set is consists from 5 sets. Main purpose is
    > create a room in page_cgroup for I/O tracking and add light-weight access method
    > for file-cache related accounting.
    > 1. An virtual-indexed array.
    > 2,3. Use virtual-indexed array for id-to-memory_cgroup detection.
    > 4. modify page_cgroup to use ID instead of pointer, this gives us enough
    > spaces for further memory tracking.
    > 5,6 Use light-weight locking mechanism for file related accounting.
    > 7. use spin_lock instead of bit_spinlock.
    > As a function, patch 5,6 can be an independent patch and I'll accept
    > reordering series of patch if someone requests.
    > But we'll need all, I think.
    > (irq_save for patch 7 will be required later.)
    > Any comments are welcome.

    This was onto mmotm-0719..but mmotm-0727 is shipped. I'll post rebased one
    if someone wants to test.


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