twx-linux/include/net
Pavel Tikhomirov 04190bf894 sock: allow reading and changing sk_userlocks with setsockopt
SOCK_SNDBUF_LOCK and SOCK_RCVBUF_LOCK flags disable automatic socket
buffers adjustment done by kernel (see tcp_fixup_rcvbuf() and
tcp_sndbuf_expand()). If we've just created a new socket this adjustment
is enabled on it, but if one changes the socket buffer size by
setsockopt(SO_{SND,RCV}BUF*) it becomes disabled.

CRIU needs to call setsockopt(SO_{SND,RCV}BUF*) on each socket on
restore as it first needs to increase buffer sizes for packet queues
restore and second it needs to restore back original buffer sizes. So
after CRIU restore all sockets become non-auto-adjustable, which can
decrease network performance of restored applications significantly.

CRIU need to be able to restore sockets with enabled/disabled adjustment
to the same state it was before dump, so let's add special setsockopt
for it.

Let's also export SOCK_SNDBUF_LOCK and SOCK_RCVBUF_LOCK flags to uAPI so
that using these interface one can reenable automatic socket buffer
adjustment on their sockets.

Signed-off-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-04 12:52:03 +01:00
..
9p 9p: apply review requests for fid refcounting 2020-11-19 17:21:34 +01:00
bluetooth Bluetooth: Fix Set Extended (Scan Response) Data 2021-06-26 07:12:44 +02:00
caif net: remove the caif_hsi driver 2021-07-01 13:19:48 -07:00
iucv net/af_iucv: don't track individual TX skbs for TRANS_HIPER sockets 2021-01-28 20:36:21 -08:00
netfilter netfilter: conntrack: nf_ct_gre_keymap_flush() removal 2021-07-02 02:07:01 +02:00
netns mctp: Allow per-netns default networks 2021-07-29 15:06:50 +01:00
nfc nfc: hci: pass callback data param as pointer in nci_request() 2021-08-02 15:11:37 +01:00
phonet
sctp sctp: send pmtu probe only if packet loss in Search Complete state 2021-07-25 23:06:02 +01:00
tc_act net/sched: act_vlan: Fix modify to allow 0 2021-06-01 16:54:42 -07:00
6lowpan.h
act_api.h net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
addrconf.h net: bridge: mcast: fix broken length + header check for MRDv6 Adv. 2021-04-27 14:02:06 -07:00
af_ieee802154.h
af_rxrpc.h afs: Don't truncate iter during data fetch 2021-04-23 10:17:26 +01:00
af_unix.h af_unix: Add OOB support 2021-08-04 09:55:52 +01:00
af_vsock.h af_vsock: rest of SEQPACKET support 2021-06-11 13:32:46 -07:00
ah.h
arp.h
atmclip.h
ax25.h
ax88796.h ax88796: export ax_NS8390_init() hook 2021-08-03 13:05:25 +01:00
bareudp.h bareudp: Reverted support to enable & disable rx metadata collection 2020-07-21 18:30:47 -07:00
bond_3ad.h bonding: add new option lacp_active 2021-08-03 11:50:22 +01:00
bond_alb.h bonding/alb: Add helper functions to get the xmit slave 2020-05-01 12:15:37 -07:00
bond_options.h bonding: add new option lacp_active 2021-08-03 11:50:22 +01:00
bonding.h bonding: add new option lacp_active 2021-08-03 11:50:22 +01:00
bpf_sk_storage.h bpf: struct sock is declared twice in bpf_sk_storage header 2021-03-26 17:43:55 +01:00
busy_poll.h net: annotate data race around sk_ll_usec 2021-07-01 11:23:50 -07:00
calipso.h
cfg80211-wext.h
cfg80211.h Lots of changes: 2021-06-28 13:06:12 -07:00
cfg802154.h
checksum.h csum_and_copy_to_iter(): massage into form closer to csum_and_copy_from_iter() 2021-06-10 11:45:14 -04:00
cipso_ipv4.h cipso: Remove unused inline functions 2020-07-15 07:45:24 -07:00
cls_cgroup.h
codel_impl.h
codel_qdisc.h
codel.h
compat.h compat: always include linux/compat.h from net/compat.h 2020-11-23 13:31:54 -08:00
datalink.h
dcbevent.h
dcbnl.h
devlink.h devlink: Allocate devlink directly in requested net namespace 2021-07-30 13:16:38 -07:00
dn_dev.h
dn_fib.h net: convert fib_treeref from int to refcount_t 2021-07-30 15:33:24 +02:00
dn_neigh.h
dn_nsp.h
dn_route.h
dn.h
dsa.h net: dsa: remove the struct packet_type argument from dsa_device_ops::rcv() 2021-08-02 15:13:15 +01:00
dsfield.h
dst_cache.h
dst_metadata.h net: validate lwtstate->data before returning from skb_tunnel_info() 2021-07-09 13:55:53 -07:00
dst_ops.h net/dst: use a smaller percpu_counter batch for dst entries accounting 2020-05-08 21:33:33 -07:00
dst.h sk_buff: track dst status in slow_gro 2021-07-29 12:18:11 +01:00
erspan.h erspan: Add type I version 0 support. 2020-05-05 13:23:29 -07:00
esp.h
espintcp.h xfrm: espintcp: save and call old ->sk_destruct 2020-04-20 07:34:16 +02:00
ethoc.h
failover.h
fib_notifier.h
fib_rules.h fib: use indirect call wrappers in the most common fib_rules_ops 2020-07-28 17:42:31 -07:00
firewire.h
flow_dissector.h flow_dissector: constify raw input data argument 2021-03-14 14:46:32 -07:00
flow_offload.h flow_offload: action should not be NULL when it is referenced 2021-06-28 14:24:06 -07:00
flow.h flow: remove spi key from flowi struct 2021-04-19 12:25:11 +02:00
fou.h
fq_impl.h net/fq_impl: do not maintain a backlog-sorted list of flows 2021-01-21 13:33:45 +01:00
fq.h net/fq_impl: do not maintain a backlog-sorted list of flows 2021-01-21 13:33:45 +01:00
garp.h
gen_stats.h
genetlink.h mptcp: avoid lock_fast usage in accept path 2021-02-12 16:31:46 -08:00
geneve.h
gre.h ip_gre: add csum offload support for gre header 2021-01-29 20:39:14 -08:00
gro_cells.h
gro.h gro: add combined call_gro_receive() + INDIRECT_CALL_INET() helper 2021-03-18 19:51:12 -07:00
gtp.h
gue.h GUE: Fix a typo 2020-06-22 21:12:44 -07:00
hwbm.h
icmp.h ipv6: ICMPV6: add response to ICMPV6 RFC 8335 PROBE messages 2021-06-28 14:29:45 -07:00
ieee80211_radiotap.h mac80211: add radiotap flag to assure frames are not reordered 2020-11-06 11:01:01 +01:00
ieee802154_netdev.h
if_inet6.h mld: add mc_lock for protecting per-interface mld data 2021-03-26 15:14:56 -07:00
ife.h
ila.h
inet6_connection_sock.h
inet6_hashtables.h
inet_common.h bpf: Allow rewriting to ports under ip_unprivileged_port_start 2021-01-27 18:18:15 -08:00
inet_connection_sock.h tcp: change ICSK_CA_PRIV_SIZE definition 2021-06-29 11:54:36 -07:00
inet_ecn.h inet_ecn: Use csum16_add() helper for IP_ECN_set_* helpers 2020-12-14 18:38:58 -08:00
inet_frag.h inet: frags: batch fqdir destroy works 2020-12-12 15:08:54 -08:00
inet_hashtables.h tcp: seq_file: Replace listening_hash with lhash2 2021-07-23 16:44:57 -07:00
inet_sock.h inet: remove inet_sk_copy_descendant() 2020-08-26 07:33:19 -07:00
inet_timewait_sock.h
inetpeer.h
ioam6.h ipv6: ioam: Support for IOAM injection with lwtunnels 2021-07-21 08:14:33 -07:00
ip6_checksum.h tcp: remove indirect calls for icsk->icsk_af_ops->send_check 2020-06-20 17:47:53 -07:00
ip6_fib.h IPv6: Add "offload failed" indication to routes 2021-02-08 16:47:03 -08:00
ip6_route.h net: ipv6: introduce ip6_dst_mtu_maybe_forward 2021-07-21 08:22:02 -07:00
ip6_tunnel.h
ip_fib.h net: convert fib_treeref from int to refcount_t 2021-07-30 15:33:24 +02:00
ip_tunnels.h ip_tunnel: use ndo_siocdevprivate 2021-07-27 20:11:44 +01:00
ip_vs.h netfilter: move handlers to net/ip_vs.h 2021-02-04 18:37:57 -08:00
ip.h net: ipv4: Consolidate ipv4_mtu and ip_dst_mtu_maybe_forward 2021-07-21 08:22:03 -07:00
ipcomp.h
ipconfig.h
ipv6_frag.h ipv6: Remove dependency of ipv6_frag_thdr_truncated on ipv6 module 2020-11-19 10:49:50 -08:00
ipv6_stubs.h ipv6: add ipv6_dev_find to stubs 2021-03-30 13:29:39 -07:00
ipv6.h ipv6: Add a sysctl to control multipath hash fields 2021-05-18 13:27:32 -07:00
ipx.h
iw_handler.h
kcm.h
l3mdev.h l3mdev: add infrastructure for table to VRF mapping 2020-06-20 17:22:22 -07:00
lag.h
lapb.h net: lapb: Make "lapb_t1timer_running" able to detect an already running timer 2021-03-23 14:14:50 -07:00
lib80211.h
llc_c_ac.h
llc_c_ev.h
llc_c_st.h
llc_conn.h
llc_if.h
llc_pdu.h net: llc: fix skb_over_panic 2021-07-27 13:05:56 +01:00
llc_s_ac.h
llc_s_ev.h
llc_s_st.h
llc_sap.h
llc.h
lwtunnel.h
mac80211.h mac80211: Switch to a virtual time-based airtime scheduler 2021-06-23 18:12:00 +02:00
mac802154.h
macsec.h net: macsec: fix the length used to copy the key for offloading 2021-06-24 12:41:12 -07:00
mctp.h mctp: Allow per-netns default networks 2021-07-29 15:06:50 +01:00
mctpdevice.h mctp: Add neighbour implementation 2021-07-29 15:06:50 +01:00
mip6.h
mld.h mld: add new workqueues for process mld events 2021-03-26 15:14:56 -07:00
mpls_iptunnel.h
mpls.h net: Make mpls_entry_encode() available for generic users 2020-05-29 21:20:20 -07:00
mptcp.h mptcp: avoid processing packet if a subflow reset 2021-07-09 18:38:53 -07:00
mrp.h
ncsi.h
ndisc.h ipv6: ndisc: adjust ndisc_ifinfo_sysctl_change prototype 2020-08-24 06:40:07 -07:00
neighbour.h net: Exempt multicast addresses from five-second neighbor lifetime 2020-11-13 14:24:39 -08:00
net_failover.h
net_namespace.h mctp: Add initial routing framework 2021-07-29 15:06:50 +01:00
net_ratelimit.h
netevent.h
netlabel.h
netlink.h net: netlink: add the case when nlh is NULL 2021-07-27 11:43:50 +01:00
netprio_cgroup.h
netrom.h
nexthop.h nexthop: Rename artifacts related to legacy multipath nexthop groups 2021-03-28 17:53:39 -07:00
nl802154.h
nsh.h
p8022.h
page_pool.h page_pool: Allow drivers to hint on SKB recycling 2021-06-07 14:11:47 -07:00
pie.h
ping.h
pkt_cls.h net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
pkt_sched.h net: sched: fix tx action rescheduling issue during deactivation 2021-05-14 15:05:46 -07:00
pptp.h
protocol.h net: Remove the member netns_ok 2021-05-17 15:29:35 -07:00
psample.h psample: Add additional metadata attributes 2021-03-14 15:00:43 -07:00
psnap.h
raw.h
rawv6.h
red.h sch_red: fix off-by-one checks in red_check_params() 2021-03-25 17:40:43 -07:00
regulatory.h net/wireless: regulatory.h: drop duplicate word in comment 2020-07-31 09:24:23 +02:00
request_sock.h tcp: bpf: Optionally store mac header in TCP_SAVE_SYN 2020-08-24 14:35:00 -07:00
rose.h
route.h lsm,selinux: pass flowi_common instead of flowi to the LSM hooks 2020-11-23 18:36:21 -05:00
rpl.h net: ipv6: Use struct_size() helper and kcalloc() 2020-06-23 20:27:09 -07:00
rsi_91x.h
rtnetlink.h net: add extack arg for link ops 2021-08-04 10:01:26 +01:00
rtnh.h
sch_generic.h net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
scm.h fs: Move __scm_install_fd() to __receive_fd() 2020-07-13 11:03:44 -07:00
secure_seq.h
seg6_hmac.h
seg6_local.h
seg6.h seg6: fix seg6_validate_srh() to avoid slab-out-of-bounds 2020-06-04 15:39:32 -07:00
selftests.h net: selftest: fix build issue if INET is disabled 2021-04-28 14:06:45 -07:00
slhc_vj.h
smc.h net/smc: introduce CHID callback for ISM devices 2020-09-28 15:19:03 -07:00
snmp.h
sock_reuseport.h tcp: Add reuseport_migrate_sock() to select a new listener. 2021-06-15 18:01:05 +02:00
sock.h sock: allow reading and changing sk_userlocks with setsockopt 2021-08-04 12:52:03 +01:00
Space.h wan: remove sbni/granch driver 2021-08-03 13:05:26 +01:00
stp.h
strparser.h
switchdev.h net: make switchdev_bridge_port_{,unoffload} loosely coupled with the bridge 2021-08-04 12:35:07 +01:00
tcp_states.h
tcp.h Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2021-07-31 11:23:26 -07:00
timewait_sock.h
tipc.h
tls_toe.h
tls.h net: sock: introduce sk_error_report 2021-06-29 11:28:21 -07:00
transp_v6.h tcp: move ipv4_specific to tcp include file 2020-06-23 20:10:15 -07:00
tso.h net: tso: cache transport header length 2020-06-18 20:46:23 -07:00
tun_proto.h
udp_tunnel.h udp: call udp_encap_enable for v6 sockets when enabling encap 2021-02-04 18:37:14 -08:00
udp.h skmsg: Pass psock pointer to ->psock_update_sk_prot() 2021-04-12 17:34:27 +02:00
udplite.h
vsock_addr.h
vxlan.h net: sched: only keep the available bits when setting vxlan md->gbp 2020-09-14 16:49:39 -07:00
wext.h
x25.h
x25device.h
xdp_priv.h
xdp_sock_drv.h xsk: Introduce batched Tx descriptor interfaces 2020-11-17 22:07:40 +01:00
xdp_sock.h xdp: Add proper __rcu annotations to redirect map entries 2021-06-24 19:41:15 +02:00
xdp.h bpf: Add function for XDP meta data length check 2021-07-07 19:51:12 -07:00
xfrm.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-06-29 15:45:27 -07:00
xsk_buff_pool.h xsk: Fix missing validation for skb and unaligned mode 2021-06-18 16:57:19 +02:00