imbalance = (max_load - nr_running) / 2;
/* It needs an at least ~25% imbalance to trigger balancing. */
if (!idle && (imbalance < (max_load + 3)/4))
nr_running = double_lock_balance(this_rq, busiest, this_cpu, idle, nr_running);
* Make sure nothing changed since we checked the
* runqueue length.
if (busiest->nr_running <= this_rq->nr_running + 1)
In the last if statement above, I suspect we want to compare
'busiest->nr_running' to the local variable nr_running (as was
done in previous versions of the code). If this is not the
case, then we can simplify double_lock_balance() and make it
return a void.
P.S. I've only been working with the 2.4.17 version of the patch,
but I assume the code is the same in other versions.
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