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    SubjectRe: workqueue_set_max_active(wq, 0)?
    Hello, Johannes. :)

    On Fri, Dec 09, 2011 at 10:54:42AM +0100, Johannes Berg wrote:
    > And then I found workqueue_set_max_active() but passing 0 isn't allowed.
    > Before I dive in more deeply I figured I'd ask if you think what a good
    > way of doing this would be (and whether I'm completely insane) :-)

    Hmmm... yeah, actually, that's what wq uses internally to implement
    freezable workqueues. It sets max_active to 0 temporarily and waits
    for all in-flight works to finish. On thaw, the original value is

    Updating workqueue_set_max_active() to return the old value would be a
    nice API update which goes together, I think.



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