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    SubjectRe: [PATCH 2/2] workqueue: debug work related deadlocks with lockdep
    On 07/06, Johannes Berg wrote:
    >
    > On Thu, 2007-07-05 at 19:36 +0400, Oleg Nesterov wrote:
    >
    > > So, __WORK_INITIALIZER() uses work_struct itself as a "struct lock_class_key" ?
    > > How so?
    >
    > Well, this is for work_structs that are static (not dynamically
    > allocated.) struct lock_class_key is just a single byte because its
    > whole purpose is to be a unique pointer, there's nothing actually in it.
    > Hence, taking the address of the work struct (when it's statically
    > allocated) is a unique pointer just as well.

    Yes, got it, but forgot to reply to myself. But thanks for your confirmation
    of my understanding.

    I believe both patches are nice.

    Oleg.

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