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Jakub Kicinski 339346d49a net: sched: gred: prevent races when adding offloads to stats 
Naresh reports seeing a warning that gred is calling
u64_stats_update_begin() with preemption enabled.
Arnd points out it's coming from _bstats_update().

We should be holding the qdisc lock when writing
to stats, they are also updated from the datapath.

Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Link: https://lore.kernel.org/all/CA+G9fYsTr9_r893+62u6UGD3dVaCE-kN9C-Apmb2m=hxjc1Cqg@mail.gmail.com/
Fixes: e49efd5288bd ("net: sched: gred: support reporting stats from offloads")
Link: https://lore.kernel.org/r/20230113044137.1383067-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-01-18 20:28:25 -08:00
..
act_api.c
net/sched: avoid indirect act functions on retpoline kernels
2022-12-09 09:18:07 +00:00
act_bpf.c
net/sched: avoid indirect act functions on retpoline kernels
2022-12-09 09:18:07 +00:00
act_connmark.c
net/sched: avoid indirect act functions on retpoline kernels
2022-12-09 09:18:07 +00:00
act_csum.c
net/sched: avoid indirect act functions on retpoline kernels
2022-12-09 09:18:07 +00:00
act_ct.c
net: move the nat function to nf_nat_ovs for ovs and tc
2022-12-12 10:14:03 +00:00
act_ctinfo.c
net/sched: avoid indirect act functions on retpoline kernels
2022-12-09 09:18:07 +00:00
act_gact.c
Networking changes for 6.2.
2022-12-13 15:47:48 -08:00
act_gate.c
net/sched: avoid indirect act functions on retpoline kernels
2022-12-09 09:18:07 +00:00
act_ife.c
net/sched: avoid indirect act functions on retpoline kernels
2022-12-09 09:18:07 +00:00
act_ipt.c
net/sched: avoid indirect act functions on retpoline kernels
2022-12-09 09:18:07 +00:00
act_meta_mark.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
act_meta_skbprio.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
act_meta_skbtcindex.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
act_mirred.c
net/sched: avoid indirect act functions on retpoline kernels
2022-12-09 09:18:07 +00:00
act_mpls.c
net/sched: act_mpls: Fix warning during failed attribute validation
2023-01-09 19:38:35 -08:00
act_nat.c
net/sched: avoid indirect act functions on retpoline kernels
2022-12-09 09:18:07 +00:00
act_pedit.c
net/sched: avoid indirect act functions on retpoline kernels
2022-12-09 09:18:07 +00:00
act_police.c
net/sched: avoid indirect act functions on retpoline kernels
2022-12-09 09:18:07 +00:00
act_sample.c
Networking changes for 6.2.
2022-12-13 15:47:48 -08:00
act_simple.c
net/sched: avoid indirect act functions on retpoline kernels
2022-12-09 09:18:07 +00:00
act_skbedit.c
net/sched: avoid indirect act functions on retpoline kernels
2022-12-09 09:18:07 +00:00
act_skbmod.c
net/sched: avoid indirect act functions on retpoline kernels
2022-12-09 09:18:07 +00:00
act_tunnel_key.c
net/sched: avoid indirect act functions on retpoline kernels
2022-12-09 09:18:07 +00:00
act_vlan.c
net/sched: avoid indirect act functions on retpoline kernels
2022-12-09 09:18:07 +00:00
cls_api.c
net/sched: avoid indirect classify functions on retpoline kernels
2022-12-09 09:18:07 +00:00
cls_basic.c
net/sched: avoid indirect classify functions on retpoline kernels
2022-12-09 09:18:07 +00:00
cls_bpf.c
net/sched: avoid indirect classify functions on retpoline kernels
2022-12-09 09:18:07 +00:00
cls_cgroup.c
net/sched: avoid indirect classify functions on retpoline kernels
2022-12-09 09:18:07 +00:00
cls_flow.c
treewide: Convert del_timer*() to timer_shutdown*()
2022-12-25 13:38:09 -08:00
cls_flower.c
net/sched: avoid indirect classify functions on retpoline kernels
2022-12-09 09:18:07 +00:00
cls_fw.c
net/sched: avoid indirect classify functions on retpoline kernels
2022-12-09 09:18:07 +00:00
cls_matchall.c
net/sched: avoid indirect classify functions on retpoline kernels
2022-12-09 09:18:07 +00:00
cls_route.c
net/sched: avoid indirect classify functions on retpoline kernels
2022-12-09 09:18:07 +00:00
cls_rsvp6.c
net/sched: avoid indirect classify functions on retpoline kernels
2022-12-09 09:18:07 +00:00
cls_rsvp.c
net/sched: avoid indirect classify functions on retpoline kernels
2022-12-09 09:18:07 +00:00
cls_rsvp.h
net/sched: avoid indirect classify functions on retpoline kernels
2022-12-09 09:18:07 +00:00
cls_tcindex.c
net: sched: fix memory leak in tcindex_set_parms
2022-12-26 08:58:33 +00:00
cls_u32.c
net/sched: avoid indirect classify functions on retpoline kernels
2022-12-09 09:18:07 +00:00
em_canid.c
net: sched: kerneldoc fixes
2020-07-13 17:20:40 -07:00
em_cmp.c
net: sched: fix misspellings using misspell-fixer tool
2020-11-10 17:00:28 -08:00
em_ipset.c
sched: consistently handle layer3 header accesses in the presence of VLANs
2020-07-03 14:34:53 -07:00
em_ipt.c
sched: consistently handle layer3 header accesses in the presence of VLANs
2020-07-03 14:34:53 -07:00
em_meta.c
net_sched: em_meta: add READ_ONCE() in var_sk_bound_if()
2022-05-16 10:31:06 +01:00
em_nbyte.c
net: sched: Return the correct errno code
2021-02-06 11:15:28 -08:00
em_text.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
em_u32.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ematch.c
net_sched: reject TCF_EM_SIMPLE case for complex ematch module
2022-12-19 09:43:18 +00:00
Kconfig
net: move the nat function to nf_nat_ovs for ovs and tc
2022-12-12 10:14:03 +00:00
Makefile
net/sched: sch_frag: add generic packet fragment support.
2020-11-27 14:36:02 -08:00
sch_api.c
net: sched: disallow noqueue for qdisc classes
2023-01-10 18:19:32 -08:00
sch_atm.c
net: sched: atm: dont intepret cls results when asked to drop
2023-01-02 13:32:43 +00:00
sch_blackhole.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_cake.c
Networking fixes for 6.1-rc2, including fixes from netfilter
2022-10-20 17:24:59 -07:00
sch_cbq.c
net: sched: cbq: dont intepret cls results when asked to drop
2023-01-02 13:32:43 +00:00
sch_cbs.c
net/sched: use tc_qdisc_stats_dump() in qdisc
2022-09-22 17:34:10 -07:00
sch_choke.c
treewide: use get_random_u32_below() instead of deprecated function
2022-11-18 02:15:15 +01:00
sch_codel.c
net: sched: remove redundant NULL check in change hook function
2022-09-01 08:06:45 +02:00
sch_drr.c
net/sched: use tc_qdisc_stats_dump() in qdisc
2022-09-22 17:34:10 -07:00
sch_dsmark.c
net/sched: use tc_qdisc_stats_dump() in qdisc
2022-09-22 17:34:10 -07:00
sch_etf.c
net: sched: etf: remove true check in etf_enable_offload()
2022-09-01 20:08:32 -07:00
sch_ets.c
net/sched: use tc_qdisc_stats_dump() in qdisc
2022-09-22 17:34:10 -07:00
sch_fifo.c
net_sched: fix NULL deref in fifo_set_limit()
2021-10-01 14:59:10 -07:00
sch_fq_codel.c
Revert "net: sched: fq_codel: remove redundant resource cleanup in fq_codel_init()"
2022-10-19 13:47:09 +01:00
sch_fq_pie.c
net: sched: remove redundant NULL check in change hook function
2022-09-01 08:06:45 +02:00
sch_fq.c
net: sched: remove redundant NULL check in change hook function
2022-09-01 08:06:45 +02:00
sch_frag.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
2021-12-31 14:35:40 +00:00
sch_generic.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-09-01 12:58:02 -07:00
sch_gred.c
net: sched: gred: prevent races when adding offloads to stats
2023-01-18 20:28:25 -08:00
sch_hfsc.c
net/sched: use tc_qdisc_stats_dump() in qdisc
2022-09-22 17:34:10 -07:00
sch_hhf.c
net: sched: remove redundant NULL check in change hook function
2022-09-01 08:06:45 +02:00
sch_htb.c
sch_htb: Avoid grafting on htb_destroy_class_offload when destroying htb
2023-01-13 22:14:25 -08:00
sch_ingress.c
net: sched: Pass ingress block to tcf_classify_ingress
2020-02-19 17:49:48 -08:00
sch_mq.c
net/sched: use tc_qdisc_stats_dump() in qdisc
2022-09-22 17:34:10 -07:00
sch_mqprio.c
net/sched: use tc_qdisc_stats_dump() in qdisc
2022-09-22 17:34:10 -07:00
sch_multiq.c
net/sched: use tc_qdisc_stats_dump() in qdisc
2022-09-22 17:34:10 -07:00
sch_netem.c
treewide: use get_random_u32_below() instead of deprecated function
2022-11-18 02:15:15 +01:00
sch_pie.c
treewide: use get_random_bytes() when possible
2022-10-11 17:42:58 -06:00
sch_plug.c
net: sched: remove redundant NULL check in change hook function
2022-09-01 08:06:45 +02:00
sch_prio.c
net/sched: use tc_qdisc_stats_dump() in qdisc
2022-09-22 17:34:10 -07:00
sch_qfq.c
net/sched: use tc_qdisc_stats_dump() in qdisc
2022-09-22 17:34:10 -07:00
sch_red.c
net: sched: Fix use after free in red_enqueue()
2022-10-31 11:55:39 +00:00
sch_sfb.c
Networking fixes for 6.1-rc2, including fixes from netfilter
2022-10-20 17:24:59 -07:00
sch_sfq.c
net/sched: use tc_qdisc_stats_dump() in qdisc
2022-09-22 17:34:10 -07:00
sch_skbprio.c
net/sched: use tc_qdisc_stats_dump() in qdisc
2022-09-22 17:34:10 -07:00
sch_taprio.c
net/sched: sch_taprio: fix possible use-after-free
2023-01-16 13:25:34 +00:00
sch_tbf.c
net/sched: use tc_qdisc_stats_dump() in qdisc
2022-09-22 17:34:10 -07:00
sch_teql.c
net: sched: delete duplicate cleanup of backlog and qlen
2022-08-25 15:10:17 +02:00