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Patrick McHardy af356afa01 net_sched: reintroduce dev->qdisc for use by sch_api 
Currently the multiqueue integration with the qdisc API suffers from
a few problems:

- with multiple queues, all root qdiscs use the same handle. This means
  they can't be exposed to userspace in a backwards compatible fashion.

- all API operations always refer to queue number 0. Newly created
  qdiscs are automatically shared between all queues, its not possible
  to address individual queues or restore multiqueue behaviour once a
  shared qdisc has been attached.

- Dumps only contain the root qdisc of queue 0, in case of non-shared
  qdiscs this means the statistics are incomplete.

This patch reintroduces dev->qdisc, which points to the (single) root qdisc
from userspace's point of view. Currently it either points to the first
(non-shared) default qdisc, or a qdisc shared between all queues. The
following patches will introduce a classful dummy qdisc, which will be used
as root qdisc and contain the per-queue qdiscs as children.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-06 02:07:03 -07:00
..
act_api.c tc: propogate errors from tcf_hash_create 2008-11-25 21:13:25 -08:00
act_gact.c tc: propogate errors from tcf_hash_create 2008-11-25 21:13:25 -08:00
act_ipt.c tc: propogate errors from tcf_hash_create 2008-11-25 21:13:25 -08:00
act_mirred.c tc: propogate errors from tcf_hash_create 2008-11-25 21:13:25 -08:00
act_nat.c tc: propogate errors from tcf_hash_create 2008-11-25 21:13:25 -08:00
act_pedit.c tc: propogate errors from tcf_hash_create 2008-11-25 21:13:25 -08:00
act_police.c pkt_sched: Update drops stats in act_police 2009-06-17 18:56:45 -07:00
act_simple.c tc: propogate errors from tcf_hash_create 2008-11-25 21:13:25 -08:00
act_skbedit.c tc: propogate errors from tcf_hash_create 2008-11-25 21:13:25 -08:00
cls_api.c net_sched: reintroduce dev->qdisc for use by sch_api 2009-09-06 02:07:03 -07:00
cls_basic.c pkt_sched: remove unnecessary xchg() in packet classifiers 2008-11-20 04:14:28 -08:00
cls_cgroup.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 2009-06-15 03:02:23 -07:00
cls_flow.c net: skb->dst accessors 2009-06-03 02:51:04 -07:00
cls_fw.c pkt_sched: remove unnecessary xchg() in packet classifiers 2008-11-20 04:14:28 -08:00
cls_route.c net: skb->dst accessors 2009-06-03 02:51:04 -07:00
cls_rsvp.c [NET_SCHED]: Remove unnecessary includes 2007-07-10 22:16:41 -07:00
cls_rsvp.h [NET_SCHED]: Use nla_policy for attribute validation in classifiers 2008-01-28 15:11:23 -08:00
cls_rsvp6.c [NET_SCHED]: Remove unnecessary includes 2007-07-10 22:16:41 -07:00
cls_tcindex.c pkt_sched: remove unnecessary xchg() in packet classifiers 2008-11-20 04:14:28 -08:00
cls_u32.c pkt_sched: cls_u32: Fix locking in u32_change() 2009-01-05 18:14:19 -08:00
em_cmp.c net: em_cmp.c use unaligned access helpers 2008-09-22 19:20:51 -07:00
em_meta.c net: correct off-by-one write allocations reports 2009-06-18 00:29:12 -07:00
em_nbyte.c [NET_SCHED]: ematch: module autoloading 2007-07-11 19:46:26 -07:00
em_text.c [NET_SCHED]: Convert classifiers from rtnetlink to new netlink API 2008-01-28 15:11:11 -08:00
em_u32.c [PKT_SCHED]: annotate cls_u32 2008-03-17 22:46:46 -07:00
ematch.c ematch: simpler tcf_em_unregister() 2008-11-16 23:01:49 -08:00
Kconfig cls_cgroup: clean up Kconfig 2008-12-29 19:40:46 -08:00
Makefile pkt_sched: add DRR scheduler 2008-11-20 04:10:00 -08:00
sch_api.c net_sched: reintroduce dev->qdisc for use by sch_api 2009-09-06 02:07:03 -07:00
sch_atm.c net: restore gnet_stats_basic to previous definition 2009-08-17 21:33:49 -07:00
sch_blackhole.c pkt_sched: Add qdisc->ops->peek() implementation. 2008-10-31 00:45:55 -07:00
sch_cbq.c net_sched: remove some unnecessary checks in classful schedulers 2009-09-06 02:07:02 -07:00
sch_drr.c net: restore gnet_stats_basic to previous definition 2009-08-17 21:33:49 -07:00
sch_dsmark.c pkt_sched: remove unnecessary xchg() in packet schedulers 2008-11-20 04:11:36 -08:00
sch_fifo.c net-sched: fix bfifo default limit 2009-05-06 16:45:07 -07:00
sch_generic.c net_sched: reintroduce dev->qdisc for use by sch_api 2009-09-06 02:07:03 -07:00
sch_gred.c pkt_sched: Remove qdisc->ops->requeue() etc. 2008-11-13 22:56:30 -08:00
sch_hfsc.c net_sched: remove some unnecessary checks in classful schedulers 2009-09-06 02:07:02 -07:00
sch_htb.c net_sched: remove some unnecessary checks in classful schedulers 2009-09-06 02:07:02 -07:00
sch_ingress.c net_sched: make cls_ops->change and cls_ops->delete optional 2009-09-06 02:07:02 -07:00
sch_multiq.c net_sched: remove some unnecessary checks in classful schedulers 2009-09-06 02:07:02 -07:00
sch_netem.c net: sch_netem: Fix an inconsistency in ingress netem timestamps. 2009-04-20 02:14:59 -07:00
sch_prio.c net_sched: remove some unnecessary checks in classful schedulers 2009-09-06 02:07:02 -07:00
sch_red.c net_sched: remove some unnecessary checks in classful schedulers 2009-09-06 02:07:02 -07:00
sch_sfq.c net_sched: make cls_ops->change and cls_ops->delete optional 2009-09-06 02:07:02 -07:00
sch_tbf.c net_sched: remove some unnecessary checks in classful schedulers 2009-09-06 02:07:02 -07:00
sch_teql.c netdev: convert pseudo-devices to netdev_tx_t 2009-09-01 01:13:07 -07:00