Re: Synchronization Techniques in 2.2 Kernel

[David Woodhouse]

[e-mail] said:
> I apologize in advance if this is not quite right, having only done
> "hello world" kernel modules thus far (plus a good deal of kernel
> source  browsing).  I think you need to "unfold" the
> interruptible_sleep_on call  and do it yourself by adding current to
> the wait queue before checking  any cards, setting current->state =
> TASK_INTERRUPTIBLE, then checking  all cards and if none has data,
> calling schedule.

You're right. It is very difficult to use sleep_on() and friends safely, 
and for that reason the plan is (or at least _has_ been) to take them all 
away in 2.5.

--
dwmw2