RE: Linux kernel thread with Linux 2.6.x

["Laurent Lagrange" <lagrange@fr.oleane.com>]

Hi,

Thanks for your answer, but a tasklet runs in interrupt context
(in_interrupt() != 0) so it doesn't support schedule() call
included in "down" semaphore function.

Any other idea ?

Laurent.

> -----Message d'origine-----
> De : Thiago Galesi [mailto:thiagogalesi@gmail.com]
> Envoyé : lun. 29 mai 2006 18:13
> À : Laurent Lagrange
> Cc : linuxppc-embedded@ozlabs.org
> Objet : Re: Linux kernel thread with Linux 2.6.x
>
>
> >
> > As the interrupt handler can't be scheduled, I have made a
> kernel thread
> > which waits forever on a semaphore.
> > This semaphore is set when a received packet interrupt occured.
>
> You should look into tasklets for this. Not that your system is not
> OK, but, as you said it, it's not fast enough.
>
> Note that you still have some limitations using tasklets, but it's
> more flexible than Interrupt handlers.
>
>