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    SubjectRe: Linux 2.2.13pre9

    On Sat, 18 Sep 1999 18:29:11 +0100 (BST), Alan Cox
    <> said:

    >> wakeup_bdflush-2.2.10-A: avoid a deadlock in wakeup_bdflush.
    >> run_task_queue() will sleep if we are flushing
    >> loop buffers to disk.

    > Need to have a look at this in depth first.

    Looks safe enough. wakeup_bdflush() doesn't need to run the disk task
    queue: the bdflush() code will do that itself just before going to
    sleep, and if bdflush blocks internally on get_request_wait (the only
    place where I think we can stall in a manner which might give us
    deadlock), then we do an automatic run_task_queue(&tq_disk) before
    waiting on the on the request wait queue.


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