Eric Dumazet c480680be3 inet: move icmp_global_{credit,stamp} to a separate cache line ...

[ Upstream commit 87b08913a9 ]

icmp_global_credit was meant to be changed ~1000 times per second,
but if an admin sets net.ipv4.icmp_msgs_per_sec to a very high value,
icmp_global_credit changes can inflict false sharing to surrounding
fields that are read mostly.

Move icmp_global_credit and icmp_global_stamp to a separate
cacheline aligned group.

Fixes: b056b4cd91 ("icmp: move icmp_global.credit and icmp_global.stamp to per netns storage")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260216142832.3834174-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2026-03-04 07:20:39 -05:00

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9p

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bluetooth

Bluetooth: btusb: mediatek: Fix kernel crash when releasing mtk iso interface

2025-12-07 06:24:54 +09:00

caif

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iucv

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libeth

libeth: add Tx buffer completion helpers

2024-09-09 13:15:37 -07:00

mana

net: mana: Change the function signature of mana_get_primary_netdev_rcu

2026-02-06 16:55:51 +01:00

netfilter

netfilter: nfnetlink_queue: do shared-unconfirmed check before segmentation

2026-03-04 07:20:09 -05:00

netns

inet: move icmp_global_{credit,stamp} to a separate cache line

2026-03-04 07:20:39 -05:00

nfc

nfc: nci: Fix race between rfkill and nci_unregister_device().

2026-02-06 16:55:42 +01:00

page_pool

page_pool: Track DMA-mapped pages and unmap them when destroying the pool

2025-06-19 15:31:42 +02:00

phonet

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sctp

sctp: detect and prevent references to a freed transport in sendmsg

2025-04-20 10:15:50 +02:00

tc_act

net_sched: act_connmark: use RCU in tcf_connmark_dump()

2025-11-24 10:35:51 +01:00

6lowpan.h

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act_api.h

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addrconf.h

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af_ieee802154.h

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af_rxrpc.h

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af_unix.h

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af_vsock.h

vsock: fix vsock_proto declaration

2025-07-17 18:37:05 +02:00

ah.h

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amt.h

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arp.h

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atmclip.h

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ax25.h

ax25: rcu protect dev->ax25_ptr

2025-02-08 09:57:10 +01:00

ax88796.h

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bareudp.h

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bond_3ad.h

bonding: update LACP activity flag after setting lacp_active

2025-08-28 16:31:15 +02:00

bond_alb.h

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bond_options.h

bonding: add ns target multicast address to slave device

2024-11-14 11:16:28 +01:00

bonding.h

bonding: annotate data-races around slave->last_rx

2026-02-06 16:55:41 +01:00

bpf_sk_storage.h

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busy_poll.h

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calipso.h

move asm/unaligned.h to linux/unaligned.h

2024-10-02 17:23:23 -04:00

cfg80211-wext.h

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cfg80211.h

wifi: cfg80211: add an hrtimer based delayed work item

2025-11-24 10:36:05 +01:00

cfg802154.h

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checksum.h

net: Fix checksum update for ILA adj-transport

2025-06-27 11:11:40 +01:00

cipso_ipv4.h

move asm/unaligned.h to linux/unaligned.h

2024-10-02 17:23:23 -04:00

cls_cgroup.h

net/cls_cgroup: Fix task_get_classid() during qdisc run

2025-11-13 15:34:24 -05:00

codel_impl.h

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codel_qdisc.h

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codel.h

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compat.h

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datalink.h

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dcbevent.h

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dcbnl.h

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devlink.h

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dropreason-core.h

net: vxlan: rename SKB_DROP_REASON_VXLAN_NO_REMOTE

2025-09-09 18:58:11 +02:00

dropreason.h

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dsa_stubs.h

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dsa.h

net: dsa: provide implementation of .support_eee()

2025-09-09 18:58:19 +02:00

dscp.h

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dsfield.h

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dst_cache.h

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dst_metadata.h

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dst_ops.h

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dst.h

net: dst: introduce dst->dev_rcu

2025-12-18 13:55:22 +01:00

eee.h

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erspan.h

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esp.h

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espintcp.h

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ethoc.h

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failover.h

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fib_notifier.h

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fib_rules.h

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firewire.h

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flow_dissector.h

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flow_offload.h

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flow.h

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fou.h

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fq_impl.h

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fq.h

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garp.h

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gen_stats.h

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genetlink.h

genetlink: hold RCU in genlmsg_mcast()

2024-10-15 17:52:58 -07:00

geneve.h

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gre.h

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gro_cells.h

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gro.h

net: allow small head cache usage with large MAX_SKB_FRAGS values

2025-02-27 04:30:18 -08:00

gso.h

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gtp.h

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gue.h

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handshake.h

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hotdata.h

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hwbm.h

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icmp.h

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ieee8021q.h

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ieee80211_radiotap.h

Merge tag 'wireless-2024-10-21' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless

2024-10-25 10:44:41 +01:00

ieee802154_netdev.h

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if_inet6.h

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ife.h

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inet6_connection_sock.h

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inet6_hashtables.h

tcp: convert to dev_net_rcu()

2025-10-23 16:20:44 +02:00

inet_common.h

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inet_connection_sock.h

tcp: cache RTAX_QUICKACK metric in a hot cache line

2025-10-23 16:20:45 +02:00

inet_dscp.h

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inet_ecn.h

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inet_frag.h

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inet_hashtables.h

ipv4: adopt dst_dev, skb_dst_dev and skb_dst_dev_net[_rcu]

2025-10-23 16:20:45 +02:00

inet_sock.h

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inet_timewait_sock.h

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inetpeer.h

inetpeer: remove create argument of inet_getpeer()

2025-02-08 09:57:06 +01:00

ioam6.h

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ip6_checksum.h

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ip6_fib.h

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ip6_route.h

net: use dst_dev_rcu() in sk_setup_caps()

2026-01-08 10:15:01 +01:00

ip6_tunnel.h

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ip_fib.h

ipv4: Fix user space build failure due to header change

2024-09-04 16:40:33 -07:00

ip_tunnels.h

net: tunnel: make skb_vlan_inet_prepare() return drop reasons

2026-02-12 13:14:56 +01:00

ip_vs.h

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ip.h

net: use dst_dev_rcu() in sk_setup_caps()

2026-01-08 10:15:01 +01:00

ipcomp.h

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ipconfig.h

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ipv6_frag.h

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ipv6_stubs.h

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ipv6.h

ipv6: fix a race in ip6_sock_set_v6only()

2026-03-04 07:20:38 -05:00

iw_handler.h

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kcm.h

net: kcm: Fix race condition in kcm_unattach()

2025-08-20 18:30:18 +02:00

l3mdev.h

vrf: use RCU protection in l3mdev_l3_out()

2025-02-21 14:01:16 +01:00

lag.h

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lapb.h

net: lapb: increase LAPB_HEADER_LEN

2024-12-19 18:13:13 +01:00

lib80211.h

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llc_c_ac.h

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llc_c_ev.h

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llc_c_st.h

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llc_conn.h

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llc_if.h

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llc_pdu.h

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llc_s_ac.h

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llc_s_ev.h

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llc_s_st.h

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llc_sap.h

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llc.h

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lwtunnel.h

net: dst: annotate data-races around dst->output

2025-08-15 12:13:41 +02:00

mac80211.h

wifi: mac80211: avoid weird state in error path

2025-08-20 18:30:32 +02:00

mac802154.h

move asm/unaligned.h to linux/unaligned.h

2024-10-02 17:23:23 -04:00

macsec.h

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mctp.h

mctp: Handle error of rtnl_register_module().

2024-10-10 15:39:35 +02:00

mctpdevice.h

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mip6.h

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mld.h

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mpls_iptunnel.h

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mpls.h

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mptcp.h

mptcp: fallback to TCP after SYN+MPC drops

2024-09-11 15:57:50 -07:00

mrp.h

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ncsi.h

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ndisc.h

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neighbour.h

neighbour: add support for NUD_PERMANENT proxy entries

2025-08-20 18:30:37 +02:00

net_debug.h

Rename .data.once to .data..once to fix resetting WARN*_ONCE

2024-12-05 14:03:08 +01:00

net_failover.h

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net_namespace.h

net: Add net_passive_inc() and net_passive_dec().

2025-08-20 18:30:56 +02:00

net_ratelimit.h

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net_trackers.h

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netdev_queues.h

net: export a helper for adding up queue stats

2025-05-18 08:24:50 +02:00

netdev_rx_queue.h

memory-provider: fix compilation issue without SYSFS

2024-09-12 21:00:26 -07:00

netevent.h

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netkit.h

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netlabel.h

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netlink.h

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netmem.h

page_pool: devmem support

2024-09-11 20:44:31 -07:00

netprio_cgroup.h

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netrom.h

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nexthop.h

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nl802154.h

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nsh.h

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p8022.h

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pfcp.h

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pie.h

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ping.h

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pkt_cls.h

net: sched: refine software bypass handling in tc_run

2025-02-08 09:57:25 +01:00

pkt_sched.h

net/sched: sch_qfq: Fix null-deref in agg_dequeue

2025-11-02 22:15:20 +09:00

pptp.h

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proto_memory.h

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protocol.h

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psample.h

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psnap.h

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raw.h

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rawv6.h

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red.h

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regulatory.h

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request_sock.h

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rose.h

net: rose: convert 'use' field to refcount_t

2025-09-04 15:31:51 +02:00

route.h

net: use dst_dev_rcu() in sk_setup_caps()

2026-01-08 10:15:01 +01:00

rpl.h

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rps.h

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rsi_91x.h

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rstreason.h

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rtnetlink.h

rtnetlink: Add bulk registration helpers for rtnetlink message handlers.

2024-10-10 15:39:35 +02:00

rtnh.h

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sch_generic.h

net: sched: generalize check for no-queue qdisc on TX queue

2025-12-07 06:24:54 +09:00

scm.h

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secure_seq.h

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seg6_hmac.h

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seg6_local.h

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seg6.h

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selftests.h

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slhc_vj.h

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smc.h

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snmp.h

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sock_reuseport.h

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sock.h

inet: Avoid ehash lookup race in inet_ehash_insert()

2025-12-18 13:54:44 +01:00

Space.h

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stp.h

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strparser.h

strparser: Add read_sock callback

2025-02-27 04:30:19 -08:00

switchdev.h

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tc_wrapper.h

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tcp_ao.h

net/tcp: Add missing lockdep annotations for TCP-AO hlist traversals

2024-12-14 20:03:53 +01:00

tcp_states.h

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tcp.h

bpf: Fix wrong copied_seq calculation

2025-02-27 04:30:19 -08:00

tcx.h

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timewait_sock.h

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tipc.h

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tls_prot.h

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tls_toe.h

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tls.h

net: tls: Cancel RX async resync request on rcd_delta overflow

2025-12-01 11:43:36 +01:00

transp_v6.h

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tso.h

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tun_proto.h

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udp_tunnel.h

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udp.h

net: drop UFO packets in udp_rcv_segment()

2025-08-15 12:14:06 +02:00

udplite.h

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vsock_addr.h

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vxlan.h

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wext.h

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x25.h

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x25device.h

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xdp_priv.h

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xdp_sock_drv.h

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xdp_sock.h

xsk: Fix race condition in AF_XDP generic RX path

2025-05-09 09:50:38 +02:00

xdp.h

bpf: Clear pfmemalloc flag when freeing all fragments

2025-11-13 15:34:07 -05:00

xfrm.h

Revert "xfrm: destroy xfrm_state synchronously on net exit path"

2025-12-12 18:37:17 +01:00

xsk_buff_pool.h

xsk: Fix race condition in AF_XDP generic RX path

2025-05-09 09:50:38 +02:00