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    SubjectRe: [PATCH] swap: send callback when swap slot is freed
    On Thu, 2009-08-13 at 08:00 +0530, Nitin Gupta wrote:
    > > I don't share Peter's view that it should be using a more general
    > > notifier interface (but I certainly agree with his EXPORT_SYMBOL_GPL).
    > Considering that the callback is made under swap_lock, we should not
    > have an array of callbacks to do. But what if this callback finds other
    > users too? I think we should leave it in its current state till it finds
    > more users and probably add BUG() to make sure callback is not already set.
    > I will make it EXPORT_SYMBOL_GPL.

    If its such a tightly coupled system, then why is compcache a module?

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