Re: Sleeping in the interrupt handler

[Jan Hudec <bulb@ucw.cz>]

On Wed, Jul 02, 2003 at 09:52:15AM +0200, Martin Maletinsky wrote:
> However, just out of interest, could you explain me the problems that
> could result from the task being on arbitrary wait_queues?

I fear it's not possible to correctly set the task state upon interrupt
exit. The problem is, that you can't say when other wait_queue was
awoken in addition to yours (because you don't know about it's
existence). So you will have to leave the task in running state, which
wouldn't upset wait_event/wait_event_interruptible, but that shouldn't
be relied upon.

-------------------------------------------------------------------------------
						 Jan 'Bulb' Hudec <bulb@ucw.cz>
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