Steve Dodd wrote:
>
>
> > It does poll there.
>
> Err.. Can you explain why you think this? The only way I can see that
> wait_on_buffer could exhibit "polling" behaviour is if it was woken up before
> the I/O was complete, and I can't see anything doing that.
>
>
schedule() acts like threadswitch() in NetWare. Try you go to sleep,
but the scheduler will wake you up again. I noticed it seems to behave
this way. This means this guy is constantly waking up and calling
run_task_queue() over and over again.
I will look at the buffer head locked bit.
Jeff
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