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SubjectRe: Killing tasklet from interrupt
On Mon, 18 Mar 2002, Jean Tourrilhes wrote:

> Hi,
>
> I'm trying to use tasklets and I've come across one problem. I
> need to kill a tasklet from a timer, and I wonder if it's legal.
>
> Code :
> -> User close IrDA TSAP and goes away
> -> LSAP not clean, more work to do
> -> Schedule timer in one second
> -> Timer
> -> If LSAP clean and nothing to do
> -> Kill tasklet
> -> Destroy LSAP
> -> Else re-shedule timer
>
> The tasklet is used in the Rx path, so may be scheduled after
> the user close the TSAP. The TSAP may interface to the socket code, to
> the TTY code, to the Ethernet code or the PPP code, so we are not even
> guaranteed that the TSAP closure is done from a user context (fun,
> fun, fun).
> To be fair, the timer API is much more versatile in that
> respect. What I think I need is a tasklet_try_kill()...
>
> Regards,
>
> Jean

You have the tasklet kill itself the next time it executes. Set some
flag so it knows it should give up its timer-slot and expire. The
interrupt sets the flag. It doesn't do anything else.


Cheers,
Dick Johnson

Penguin : Linux version 2.4.18 on an i686 machine (797.90 BogoMips).

Windows-2000/Professional isn't.

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