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    SubjectRe: [RFC] page-writeback: move indoes from one superblock together
    On Thu, 24 Sep 2009 21:46:25 +0800
    Wu Fengguang <> wrote:
    > Note that dirty_time may not be unique, so need some workaround. And
    > the resulted rbtree implementation may not be more efficient than
    > several list traversals even for a very large list (as long as
    > superblocks numbers are low).
    > The good side is, once sb+dirty_time rbtree is implemented, it should
    > be trivial to switch the key to sb+inode_number (also may not be
    > unique), and to do location ordered writeback ;)

    would you want to sort by dirty time, or by inode number?
    (assuming inode number is loosely related to location on disk)

    Arjan van de Ven Intel Open Source Technology Centre
    For development, discussion and tips for power savings,

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