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linux/net/sched
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Eric Dumazet 4d0820cf6a sch_tbf: handle too small burst 
If a too small burst is inadvertently set on TBF, we might trigger
a bug in tbf_segment(), as 'skb' instead of 'segs' was used in a
qdisc_reshape_fail() call.

tc qdisc add dev eth0 root handle 1: tbf latency 50ms burst 1KB rate
50mbit

Fix the bug, and add a warning, as such configuration is not
going to work anyway for non GSO packets.

(For some reason, one has to use a burst >= 1520 to get a working
configuration, even with old kernels. This is a probable iproute2/tc
bug)

Based on a report and initial patch from Yang Yingliang

Fixes: e43ac79a4b ("sch_tbf: segment too big GSO packets")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-23 14:46:25 -08:00
..
act_api.c rtnetlink: Remove passing of attributes into rtnl_doit functions 2013-03-22 10:31:16 -04:00
act_csum.c act_csum: fix possible use after free 2013-04-12 15:25:41 -04:00
act_gact.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
act_ipt.c net_sched: act_ipt forward compat with xtables 2013-05-01 13:19:19 -04:00
act_mirred.c net: pass info struct via netdevice notifier 2013-05-28 13:11:01 -07:00
act_nat.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
act_pedit.c net: Add skb_unclone() helper function. 2013-02-15 15:10:37 -05:00
act_police.c net_sched: add u64 rate to psched_ratecfg_precompute() 2013-09-20 14:41:02 -04:00
act_simple.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
act_skbedit.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
cls_api.c net_cls: remove duplicated include from cls_api.c 2013-04-07 17:12:01 -04:00
cls_basic.c qdisc: basic classifier - remove unnecessary initialization 2013-09-30 15:47:43 -04:00
cls_bpf.c net: sched: cls_bpf: add BPF-based classifier 2013-10-29 17:33:17 -04:00
cls_cgroup.c cgroup: cls: remove unnecessary task_cls_classid 2013-10-08 16:27:34 -04:00
cls_flow.c netlink: rename ssk to sk in struct netlink_skb_params 2013-04-19 14:57:56 -04:00
cls_fw.c pkt_sched: fix error return code in fw_change_attrs() 2013-04-19 17:34:53 -04:00
cls_route.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
cls_rsvp6.c
cls_rsvp.c
cls_rsvp.h pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
cls_tcindex.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
cls_u32.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
em_canid.c net: em_canid: Ematch rule to match CAN frames according to their identifiers 2012-07-04 13:07:05 +02:00
em_cmp.c net_sched: cleanups 2011-01-19 23:31:12 -08:00
em_ipset.c em_ipset: use dev_net() accessor 2013-10-18 16:23:06 -04:00
em_meta.c qdisc: meta return ENOMEM on alloc failure 2013-09-30 15:47:43 -04:00
em_nbyte.c net_sched: cleanups 2011-01-19 23:31:12 -08:00
em_text.c net_sched: cleanups 2011-01-19 23:31:12 -08:00
em_u32.c net_sched: cleanups 2011-01-19 23:31:12 -08:00
ematch.c net: Convert net_ratelimit uses to net_<level>_ratelimited 2012-05-15 13:45:03 -04:00
Kconfig net: sched: cls_bpf: add BPF-based classifier 2013-10-29 17:33:17 -04:00
Makefile net: sched: cls_bpf: add BPF-based classifier 2013-10-29 17:33:17 -04:00
sch_api.c net_sched: increment drop counters in qdisc_tree_decrease_qlen() 2013-10-08 16:27:33 -04:00
sch_atm.c net_sched: info leak in atm_tc_dump_class() 2013-07-31 15:04:19 -07:00
sch_blackhole.c
sch_cbq.c net_sched: Fix stack info leak in cbq_dump_wrr(). 2013-07-30 00:16:21 -07:00
sch_choke.c treewide: Add __GFP_NOWARN to k.alloc calls with v.alloc fallbacks 2013-08-20 13:06:40 +02:00
sch_codel.c fq_codel: should use qdisc backlog as threshold 2012-05-16 15:30:26 -04:00
sch_drr.c net_sched: add 64bit rate estimators 2013-06-11 02:51:03 -07:00
sch_dsmark.c net: sched: factorize code (qdisc_drop()) 2012-05-04 11:50:05 -04:00
sch_fifo.c pkt_sched: Stop using NLA_PUT*(). 2012-04-01 18:11:37 -04:00
sch_fq_codel.c net: fq_codel: Fix off-by-one error 2013-03-29 15:32:23 -04:00
sch_fq.c pkt_sched: fq: fix pacing for small frames 2013-11-15 21:01:52 -05:00
sch_generic.c net: Add layer 2 hardware acceleration operations for macvlan devices 2013-11-07 19:11:41 -05:00
sch_gred.c net_sched: gred: actually perform idling in WRED mode 2012-09-13 16:10:13 -04:00
sch_hfsc.c net_sched: add 64bit rate estimators 2013-06-11 02:51:03 -07:00
sch_htb.c net_sched: htb: support of 64bit rates 2013-09-20 14:41:03 -04:00
sch_ingress.c net_sched: factorize qdisc stats handling 2011-01-10 16:07:54 -08:00
sch_mq.c qdisc: allow setting default queuing discipline 2013-08-31 00:32:32 -04:00
sch_mqprio.c qdisc: allow setting default queuing discipline 2013-08-31 00:32:32 -04:00
sch_multiq.c pkt_sched: Stop using NLA_PUT*(). 2012-04-01 18:11:37 -04:00
sch_netem.c netem: markov loss model transition fix 2013-10-25 19:03:39 -04:00
sch_plug.c net_sched: sch_plug: plug_qdisc_ops is static 2012-02-13 16:04:40 -05:00
sch_prio.c pkt_sched: Stop using NLA_PUT*(). 2012-04-01 18:11:37 -04:00
sch_qfq.c pkt_sched: sch_qfq: remove a source of high packet delay/jitter 2013-07-18 13:02:00 -07:00
sch_red.c pkt_sched: Stop using NLA_PUT*(). 2012-04-01 18:11:37 -04:00
sch_sfb.c sch_sfb: Fix missing NULL check 2012-07-12 08:33:18 -07:00
sch_sfq.c pkt_sched: Stop using NLA_PUT*(). 2012-04-01 18:11:37 -04:00
sch_tbf.c sch_tbf: handle too small burst 2013-11-23 14:46:25 -08:00
sch_teql.c sch_teql: Convert over to dev_neigh_lookup_skb(). 2012-07-05 01:09:06 -07:00