On Thu, 25 Jan 2007 16:32:28 +0100
Peter Zijlstra <[EMAIL PROTECTED]> wrote:
> +long congestion_wait_interruptible(int rw, long timeout)
> +{
> + long ret;
> + DEFINE_WAIT(wait);
> + wait_queue_head_t *wqh = &congestion_wqh[rw];
> +
> + prepare_to_wait(wqh, &wait, TASK_INTERRUPTIBLE);
> + if (signal_pending(current))
> + ret = -ERESTARTSYS;
> + else
> + ret = io_schedule_timeout(timeout);
> + finish_wait(wqh, &wait);
> + return ret;
> +}
> +EXPORT_SYMBOL(congestion_wait_interruptible);
I think this can share code with congestion_wait()?
static long __congestion_wait(int rw, long timeout, int state)
{
long ret;
DEFINE_WAIT(wait);
wait_queue_head_t *wqh = &congestion_wqh[rw];
prepare_to_wait(wqh, &wait, state);
ret = io_schedule_timeout(timeout);
finish_wait(wqh, &wait);
return ret;
}
long congestion_wait_interruptible(int rw, long timeout)
{
long ret = __congestion_wait(rw, timeout);
if (signal_pending(current))
ret = -ERESTARTSYS;
return ret;
}
it's only infinitesimally less efficient..
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