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SubjectRe: wait_event() :(
> I have a doubt regarding wait_event.
> In the macro __wait_event, the calling process changes its state to
> TASK_UNINTERRUPTIBLE and calls schedule.
> And does this in infinite loop.
> After the loop, it itself changes its state to TASK_RUNNING.
>
> Once it calls schedule(), the scheduler will remove it from task list as
> it is in uninterruptible mode.
> Then when does it come again into running state to check the condition.
>
> kindly cc the reply to me as i'm not subscribed to the list
> thanks

It inserts itself in a wait queue. The schedule returns when wakeup is called
on the wait queue.

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