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alistair23-linux/net/sched
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Roman Kapl 5ae437ad5a net: sched: report if filter is too large to dump 
So far, if the filter was too large to fit in the allocated skb, the
kernel did not return any error and stopped dumping. Modify the dumper
so that it returns -EMSGSIZE when a filter fails to dump and it is the
first filter in the skb. If we are not first, we will get a next chance
with more room.

I understand this is pretty near to being an API change, but the
original design (silent truncation) can be considered a bug.

Note: The error case can happen pretty easily if you create a filter
with 32 actions and have 4kb pages. Also recent versions of iproute try
to be clever with their buffer allocation size, which in turn leads to

Signed-off-by: Roman Kapl <code@rkapl.cz>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2018-02-20 21:57:17 -05:00
..
Kconfig net/sched: kconfig: Remove blank help texts 2018-01-31 10:26:30 -05:00
Makefile Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
act_api.c idr: Rename idr_for_each_entry_ext 2018-02-06 16:41:28 -05:00
act_bpf.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_connmark.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_csum.c net/sched: act_csum: don't use spinlock in the fast path 2018-01-23 19:51:46 -05:00
act_gact.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-09 10:37:00 -05:00
act_ife.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_ipt.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_meta_mark.c net: remove duplicate includes 2017-12-13 13:18:46 -05:00
act_meta_skbprio.c net sched actions: change IFE modules alias names 2017-10-12 22:13:20 -07:00
act_meta_skbtcindex.c net: remove duplicate includes 2017-12-13 13:18:46 -05:00
act_mirred.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-09 10:37:00 -05:00
act_nat.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_pedit.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_police.c net: sch: api: add extack support in qdisc_get_rtab 2017-12-21 12:32:50 -05:00
act_sample.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_simple.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_skbedit.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_skbmod.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_tunnel_key.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_vlan.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
cls_api.c net: sched: report if filter is too large to dump 2018-02-20 21:57:17 -05:00
cls_basic.c cls_basic: Convert to use idr_alloc_u32 2018-02-06 16:41:26 -05:00
cls_bpf.c cls_bpf: Convert to use idr_alloc_u32 2018-02-06 16:41:26 -05:00
cls_cgroup.c net: sched: propagate extack to cls->destroy callbacks 2018-01-24 16:01:09 -05:00
cls_flow.c net: sched: propagate extack to cls->destroy callbacks 2018-01-24 16:01:09 -05:00
cls_flower.c cls_flower: Convert to idr_alloc_u32 2018-02-06 16:41:26 -05:00
cls_fw.c net: sched: propagate extack to cls->destroy callbacks 2018-01-24 16:01:09 -05:00
cls_matchall.c cls_matchall: propagate extack to delete callback 2018-01-24 16:01:10 -05:00
cls_route.c net: sched: propagate extack to cls->destroy callbacks 2018-01-24 16:01:09 -05:00
cls_rsvp.c
…
cls_rsvp.h net: sched: propagate extack to cls->destroy callbacks 2018-01-24 16:01:09 -05:00
cls_rsvp6.c
…
cls_tcindex.c net: sched: propagate extack to cls->destroy callbacks 2018-01-24 16:01:09 -05:00
cls_u32.c net: sched: fix tc_u_common lookup 2018-02-13 12:29:02 -05:00
em_canid.c net: sched: remove tcf_proto from ematch calls 2014-10-06 18:02:32 -04:00
em_cmp.c net_sched: cleanups 2011-01-19 23:31:12 -08:00
em_ipset.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
em_meta.c net: convert sock.sk_refcnt from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
em_nbyte.c net: sched: em_nbyte: don't add the data offset twice 2018-01-24 14:52:40 -05:00
em_text.c net: Remove state argument from skb_find_text() 2015-02-22 15:59:54 -05:00
em_u32.c net_sched: cleanups 2011-01-19 23:31:12 -08:00
ematch.c net: sched: ematch: obtain net pointer from blocks 2017-10-16 21:00:40 +01:00
sch_api.c net: sched: introduce ingress/egress block index attributes for qdisc 2018-01-17 14:53:57 -05:00
sch_atm.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
sch_blackhole.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_cbq.c net: sch: sch_cbq: add extack support 2017-12-21 12:32:51 -05:00
sch_cbs.c net: sch: sch_cbs: add extack support 2017-12-21 12:32:51 -05:00
sch_choke.c net: sched: sch: add extack for change qdisc ops 2017-12-21 12:32:50 -05:00
sch_codel.c net: sched: sch: add extack for change qdisc ops 2017-12-21 12:32:50 -05:00
sch_drr.c net: sch: sch_drr: add extack support 2017-12-21 12:32:51 -05:00
sch_dsmark.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
sch_fifo.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
sch_fq.c net: sched: sch: add extack for change qdisc ops 2017-12-21 12:32:50 -05:00
sch_fq_codel.c net: sch: api: add extack support in tcf_block_get 2017-12-21 12:32:51 -05:00
sch_generic.c net_sched: implement ->change_tx_queue_len() for pfifo_fast 2018-01-29 12:42:15 -05:00
sch_gred.c net: sched: sch: add extack for change qdisc ops 2017-12-21 12:32:50 -05:00
sch_hfsc.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
sch_hhf.c net: sched: sch: add extack for change qdisc ops 2017-12-21 12:32:50 -05:00
sch_htb.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
sch_ingress.c net: sched: allow ingress and clsact qdiscs to share filter blocks 2018-01-17 14:53:57 -05:00
sch_mq.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
sch_mqprio.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
sch_multiq.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
sch_netem.c sch_netem: Bug fixing in calculating Netem interval 2018-02-07 21:59:12 -05:00
sch_pie.c net: sched: sch: add extack for change qdisc ops 2017-12-21 12:32:50 -05:00
sch_plug.c net: sched: sch: add extack for change qdisc ops 2017-12-21 12:32:50 -05:00
sch_prio.c net/sched/sch_prio.c: work around gcc-4.4.4 union initializer issues 2018-01-18 21:11:31 -05:00
sch_qfq.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
sch_red.c net: sched: red: don't reset the backlog on every stat dump 2018-01-17 14:29:32 -05:00
sch_sfb.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
sch_sfq.c net: sch: api: add extack support in tcf_block_get 2017-12-21 12:32:51 -05:00
sch_tbf.c net: create skb_gso_validate_mac_len() 2018-02-01 09:36:03 -05:00
sch_teql.c net: sched: sch: add extack for init callback 2017-12-21 12:32:50 -05:00