[pso] work_struct::data

[Alexandru Mosoi]

grhhh. de unde invechit? l-am luat din LDD3. asa... plus ca mi se pare ceva
gresit in laborator. work_struct este defapt o lista inlantuita si mereu (in
laborator) se pune in coada exact acelasi element (acelasi pointer). eu am
alocat workqueue-ul si l-am eliberat in handler (m-am uitat in doc... err...
surse si e corect ce fac). problema mea e cum folosesc data ala? ca mi-am
pierdut deja 2 ore de somn incercand sa-mi dau seama treaba cu el
(atribuirea lui dupa INIT/PREPARE_WORK face ca handlerul sa nu fie chemat).

2008/5/15 Razvan Deaconescu <razvand at cs.pub.ro>:

> On Wed, 2008-05-14 at 23:51 +0300, Alexandru Mosoi wrote:
> > incerc sa folosesc membrul data pentru a transmite pointerul la
> > structura bio astfel:
> >
> > work_handler:
> >
> >     struct bio* bio =
> >         (struct bio *)atomic_long_read(&work->data);
> >
> >     printk(KERN_ALERT "handler bio = %p\n", bio);
> >
> >
> > bio_request
> >
> >     printk(KERN_ALERT "request bio = %p\n", bio);
> >
> >     atomic_long_set(&device->work.data, (long)bio);
> >     PREPARE_WORK(&device->work, ssr_work_handler);
> >     schedule_work(&device->work);
> >
> >
> > nu stiu ce gresesc, dar cei doi pointeri sunt distincti.
>
> Hmmm ... de unde ai luat exemplele de folosire a work-queue-urilor?
> API-ul folosit de tine este invechit. Te-ai uitat pe solutiile
> laboratorului 7 [1] (exercitiul 4) pentru un model de folosire a
> work-struct-urilor? Sau chiar in laborator[2]?
>
> Razvan
>
> [1] http://cs.pub.ro/~pso/wiki/images/4/41/Lab7-tasks-sol.zip<http://cs.pub.ro/%7Epso/wiki/images/4/41/Lab7-tasks-sol.zip>
> [2]
> http://cs.pub.ro/~pso/index.php?section=Laboratoare&file=07.%20Actiuni%20amanabile#Workqueues<http://cs.pub.ro/%7Epso/index.php?section=Laboratoare&file=07.%20Actiuni%20amanabile#Workqueues>
>
>
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-- 
Alexandru Moşoi
http://alexandru.mosoi.googlepages.com

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