Quoting "Jarek Poplawski" [off-list ref]:

quoted

PS. I noticed something fishy in HTB; HTB always returns NET_XMIT_DROP if
qdisc_enqueue doesn't return full NET_XMIT_SUCCESS, shouldn't it  
return return
value from qdisc_enqueue. Same in HTB requeue. That can't be right, right?

Yes, very good point, and quite hard to diagnose bug - happily solved
already (but not fixed yet) by David Miller himself.

Ok, I assume that same case in sch_prio:requeue has been already spotted too.

PS: it seems your mailer wrapped some lines of above patch.

Doh, time to find alternative for horde.

  - Jussi