Eric Dumazet cc9f9a49f5 tcp: convert elligible sysctls to u8 ...

[ Upstream commit 4ecc1baf36 ]

Many tcp sysctls are either bools or small ints that can fit into u8.

Reducing space taken by sysctls can save few cache line misses
when sending/receiving data while cpu caches are empty,
for example after cpu idle period.

This is hard to measure with typical network performance tests,
but after this patch, struct netns_ipv4 has shrunk
by three cache lines.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: dc5110c2d959 ("tcp: restrict net.ipv4.tcp_app_win")
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-04-20 12:10:26 +02:00

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9p

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bluetooth

Bluetooth: L2CAP: Fix not checking for maximum number of DCID

2023-04-05 11:23:36 +02:00

caif

net: caif: add proper error handling

2021-06-10 13:39:24 +02:00

iucv

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netfilter

netfilter: tproxy: fix deadlock due to missing BH disable

2023-03-17 08:45:11 +01:00

netns

tcp: convert elligible sysctls to u8

2023-04-20 12:10:26 +02:00

nfc

NFC: add NCI_UNREG flag to eliminate the race

2021-11-26 10:39:18 +01:00

phonet

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sctp

sctp: add a refcnt in sctp_stream_priorities to avoid a nested loop

2023-03-11 16:40:12 +01:00

tc_act

net/sched: act_pedit: really ensure the skb is writable

2022-05-18 10:23:44 +02:00

6lowpan.h

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act_api.h

net: sched: fix err handler in tcf_action_init()

2021-04-14 08:42:05 +02:00

addrconf.h

ipv6/addrconf: fix a null-ptr-deref bug for ip6_ptr

2022-08-03 12:00:46 +02:00

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: each transport cycles only on its own sockets

2022-03-23 09:13:27 +01:00

ah.h

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arp.h

ipv4: Invalidate neighbour for broadcast address upon address addition

2022-04-13 21:00:57 +02:00

atmclip.h

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ax25.h

ax25: fix reference count leaks of ax25_dev

2022-04-20 09:23:31 +02:00

ax88796.h

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bareudp.h

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bond_3ad.h

net: bonding: Share lacpdu_mcast_addr definition

2022-09-28 11:10:31 +02:00

bond_alb.h

bonding: make tx_rebalance_counter an atomic

2021-12-14 11:32:36 +01:00

bond_options.h

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bonding.h

net: bonding: Share lacpdu_mcast_addr definition

2022-09-28 11:10:31 +02:00

bpf_sk_storage.h

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busy_poll.h

net: Fix a data-race around sysctl_net_busy_poll.

2022-08-31 17:15:20 +02:00

calipso.h

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cfg80211-wext.h

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cfg80211.h

cfg80211: fix management registrations locking

2021-11-02 19:48:20 +01:00

cfg802154.h

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checksum.h

net: Force inlining of checksum functions in net/checksum.h

2022-03-02 11:42:50 +01:00

cipso_ipv4.h

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cls_cgroup.h

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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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dn_dev.h

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dn_fib.h

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dn_neigh.h

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dn_nsp.h

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dn_route.h

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dn.h

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dsa.h

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dsfield.h

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dst_cache.h

wireguard: device: reset peer src endpoint when netns exits

2021-12-08 09:03:22 +01:00

dst_metadata.h

net: fix a memleak when uncloning an skb dst and its metadata

2022-02-16 12:54:26 +01:00

dst_ops.h

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dst.h

net: add atomic_long_t to net_device_stats fields

2023-01-14 10:16:18 +01:00

erspan.h

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esp.h

esp: limit skb_page_frag_refill use to a single page

2022-04-27 13:53:48 +02:00

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

ipv6: fix memory leak in fib6_rule_suppress

2021-12-08 09:03:21 +01:00

firewire.h

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flow_dissector.h

net/sched: flower: fix parsing of ethertype following VLAN header

2022-04-20 09:23:11 +02:00

flow_offload.h

netfilter: nf_tables: bail out early if hardware offload is not supported

2022-06-14 18:32:40 +02:00

flow.h

lsm,selinux: pass flowi_common instead of flowi to the LSM hooks

2022-06-09 10:21:09 +02:00

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

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geneve.h

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gre.h

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gro_cells.h

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gtp.h

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gue.h

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hwbm.h

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icmp.h

net: icmp: pass zeroed opts from icmp{,v6}_ndo_send before sending

2021-03-04 11:38:46 +01:00

ieee80211_radiotap.h

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ieee802154_netdev.h

net: ieee802154: return -EINVAL for unknown addr type

2022-10-26 13:25:55 +02:00

if_inet6.h

ipv6: fix locking issues with loops over idev->addr_list

2022-06-09 10:20:50 +02:00

ife.h

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ila.h

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inet6_connection_sock.h

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inet6_hashtables.h

net: allow unbound socket for packets in VRF when tcp_l3mdev_accept set

2022-08-21 15:15:51 +02:00

inet_common.h

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inet_connection_sock.h

Revert "tcp: change pingpong threshold to 3"

2022-08-03 12:00:45 +02:00

inet_ecn.h

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inet_frag.h

inet: frags: annotate races around fqdir->dead and fqdir->high_thresh

2022-01-27 10:54:33 +01:00

inet_hashtables.h

net: allow unbound socket for packets in VRF when tcp_l3mdev_accept set

2022-08-21 15:15:51 +02:00

inet_sock.h

net: allow unbound socket for packets in VRF when tcp_l3mdev_accept set

2022-08-21 15:15:51 +02:00

inet_timewait_sock.h

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inetpeer.h

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ip6_checksum.h

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ip6_fib.h

ipv6: annotate accesses to fn->fn_sernum

2022-02-01 17:25:44 +01:00

ip6_route.h

net: ipv6: fix returned variable type in ip6_skb_dst_mtu

2021-08-12 13:22:07 +02:00

ip6_tunnel.h

ip_gre, ip6_gre: Fix race condition on o_seqno in collect_md mode

2022-05-09 09:05:04 +02:00

ip_fib.h

ipv4: convert fib_num_tclassid_users to atomic_t

2021-12-08 09:03:26 +01:00

ip_tunnels.h

ip_gre, ip6_gre: Fix race condition on o_seqno in collect_md mode

2022-05-09 09:05:04 +02:00

ip_vs.h

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ip.h

net: use struct_group to copy ip/ipv6 header addresses

2022-11-25 17:45:55 +01:00

ipcomp.h

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ipconfig.h

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ipv6_frag.h

inet: frags: annotate races around fqdir->dead and fqdir->high_thresh

2022-01-27 10:54:33 +01:00

ipv6_stubs.h

net: ipv6: add fib6_nh_release_dsts stub

2021-12-01 09:19:05 +01:00

ipv6.h

net: use struct_group to copy ip/ipv6 header addresses

2022-11-25 17:45:55 +01:00

ipx.h

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iw_handler.h

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kcm.h

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l3mdev.h

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lag.h

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lapb.h

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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

net: llc: fix skb_over_panic

2021-08-04 12:46:43 +02:00

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

llc: fix out-of-bound array index in llc_sk_dev_hash()

2021-11-18 14:04:27 +01:00

lwtunnel.h

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mac80211.h

mac80211: Fix NULL ptr deref for injected rate info

2021-06-23 14:42:52 +02:00

mac802154.h

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macsec.h

net: macsec: fix the length used to copy the key for offloading

2021-07-14 16:56:28 +02:00

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: remove MPTCP 'ifdef' in TCP SYN cookies

2023-01-14 10:16:51 +01:00

mrp.h

mrp: introduce active flags to prevent UAF when applicant uninit

2023-01-14 10:16:18 +01:00

ncsi.h

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ndisc.h

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neighbour.h

net, neigh: Enable state migration between NUD_PERMANENT and NTF_USE

2021-11-18 14:04:29 +01:00

net_failover.h

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net_namespace.h

net: make get_net_ns return error if NET_NS is disabled

2021-06-23 14:42:44 +02:00

net_ratelimit.h

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netevent.h

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netlabel.h

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netlink.h

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netprio_cgroup.h

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netrom.h

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nexthop.h

net: ipv4: Fix rtnexthop len when RTA_FLOW is present

2021-10-06 15:55:53 +02:00

nl802154.h

net: ieee802154: handle iftypes as u32

2021-12-01 09:19:03 +01:00

nsh.h

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p8022.h

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page_pool.h

mm: fix struct page layout on 32-bit systems

2021-05-19 10:13:17 +02:00

pie.h

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ping.h

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pkt_cls.h

net: zero-initialize tc skb extension on allocation

2021-06-03 09:00:51 +02:00

pkt_sched.h

net: add a helper to avoid issues with HW TX timestamping and SO_TXTIME

2023-01-14 10:16:10 +01:00

pptp.h

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protocol.h

tcp/udp: Make early_demux back namespacified.

2022-11-10 18:14:26 +01:00

psample.h

psample: Add a fwd declaration for skbuff

2021-08-18 08:59:11 +02:00

psnap.h

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raw.h

raw: Fix a data-race around sysctl_raw_l3mdev_accept.

2022-07-21 21:20:10 +02:00

rawv6.h

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red.h

sch_red: fix off-by-one checks in red_check_params()

2021-04-14 08:42:07 +02:00

regulatory.h

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request_sock.h

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rose.h

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route.h

lsm,selinux: pass flowi_common instead of flowi to the LSM hooks

2022-06-09 10:21:09 +02:00

rpl.h

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rsi_91x.h

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rtnetlink.h

can: dev: Move device back to init netns on owning netns delete

2021-03-30 14:32:08 +02:00

rtnh.h

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sch_generic.h

net/sched: sch_taprio: fix possible use-after-free

2023-02-01 08:23:12 +01:00

scm.h

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secure_seq.h

secure_seq: use the 64 bits of the siphash for port offset calculation

2022-05-30 09:33:23 +02:00

seg6_hmac.h

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seg6_local.h

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seg6.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

udp: Update reuse->has_conns under reuseport_lock.

2022-10-30 09:41:19 +01:00

sock.h

net: add sock_init_data_uid()

2023-03-11 16:39:26 +01:00

Space.h

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stp.h

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strparser.h

bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding

2021-11-18 14:04:27 +01:00

switchdev.h

bridge: switchdev: Notify about VLAN protocol changes

2022-12-02 17:39:57 +01:00

tcp_states.h

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tcp.h

tcp/udp: Make early_demux back namespacified.

2022-11-10 18:14:26 +01:00

timewait_sock.h

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tipc.h

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tls_toe.h

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tls.h

net/tls: Check for errors in tls_device_init

2022-07-21 21:20:13 +02:00

transp_v6.h

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tso.h

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tun_proto.h

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udp_tunnel.h

udp: call udp_encap_enable for v6 sockets when enabling encap

2022-04-08 14:39:54 +02:00

udp.h

tcp/udp: Make early_demux back namespacified.

2022-11-10 18:14:26 +01:00

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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wimax.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

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xdp.h

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xfrm.h

xfrm: fix "disable_policy" flag use when arriving from different devices

2022-05-25 09:17:58 +02:00

xsk_buff_pool.h

xsk: Inherit need_wakeup flag for shared sockets

2022-10-15 07:55:51 +02:00