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    Subject[PATCH 0/14] x86_64 irq related fixes and cleanups.

    My recent ioapic investigation has been painful and has taken me all
    over the place. One of my conclusions is that our code for dealing with
    ioapics on i386 and x86_64 is a mess that has been growing for years.

    I saw tremendous amounts of fodder for cleanup patches. Ugh.

    When deciding how much to include in the patchset for addressing the irq
    migrations problems that have cropped up in the x86_64 code I really
    wanted to keep the patchset small and minimal. But I needed to make
    some substantial changes so I would have a low priority IPI I could use
    for ensuring irq migration was complete. When trying to throw out
    patches I kept finding things that were either bug fixes or relevant
    cleanups to the problem I was addressing.

    So this patchset is bigger than I would for addressing the issue irq
    migration issue but there is nothing that isn't a simple cleanup or
    isn't a real bug fix. So I think we need it all one way or another.

    I have lost track of who has what in which tree or who it makes sense
    to send this to. So this patchset is against Linus's latest git tree.
    And hopefully we can include this in 2.6.21.

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