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23bcf634c8
kernel_optimize_test/net/sched
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Patrick McHardy 23bcf634c8 net_sched: fix estimator lock selection for mq child qdiscs 
When new child qdiscs are attached to the mq qdisc, they are actually
attached as root qdiscs to the device queues. The lock selection for
new estimators incorrectly picks the root lock of the existing and
to be replaced qdisc, which results in a use-after-free once the old
qdisc has been destroyed.

Mark mq qdisc instances with a new flag and treat qdiscs attached to
mq as children similar to regular root qdiscs.

Additionally prevent estimators from being attached to the mq qdisc
itself since it only updates its byte and packet counters during dumps.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-09 18:11:23 -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 net_sched: add classful multiqueue dummy scheduler 2009-09-06 02:07:05 -07:00
sch_api.c net_sched: fix estimator lock selection for mq child qdiscs 2009-09-09 18:11:23 -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: add classful multiqueue dummy scheduler 2009-09-06 02:07:05 -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_mq.c net_sched: fix estimator lock selection for mq child qdiscs 2009-09-09 18:11:23 -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