Re: [RFC] Outline of USB process integration in the kernel taskqueue system

From: Matthew Fleming <mdf356_at_gmail.com>
Date: Fri, 5 Nov 2010 11:48:05 -0700
On Fri, Nov 5, 2010 at 11:45 AM, Hans Petter Selasky <hselasky_at_c2i.net> wrote:
> On Friday 05 November 2010 19:39:45 Matthew Fleming wrote:
>> True, but no taskqueue(9) code can handle that.  Only the caller can
>> prevent a task from becoming enqueued again.  The same issue exists
>> with taskqueue_drain().
>
> I find that strange, because that means if I queue a task again while it is
> running, then I doesn't get run? Are you really sure?

If a task is currently running when enqueued, the task struct will be
re-enqueued to the taskqueue.  When that task comes up as the head of
the queue, it will be run again.

Thanks,
matthew
Received on Fri Nov 05 2010 - 17:48:06 UTC

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