Patrick McHardy wrote:
> Martin Devera wrote:
>> Interestingly, once you do this patch then children/siblings list-heads
>> are used only in htb_parent_last_child and to detect empty class.
>> Thus we could remove children/siblings lists altogether ane keep only
>> children counter.
>> I can't believe it is so simple, what do you think, Patrick ?
> 
> Yes, it looks like that would work. I'll give it a try :)

How about this, on top of my previous patches?