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android_kernel_xiaomi_sm8450/net/ipv6
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Stanislav Fomichev 08f61a3491 bpf: Remove extra lock_sock for TCP_ZEROCOPY_RECEIVE 
[ Upstream commit 9cacf81f8161111db25f98e78a7a0e32ae142b3f ]

Add custom implementation of getsockopt hook for TCP_ZEROCOPY_RECEIVE.
We skip generic hooks for TCP_ZEROCOPY_RECEIVE and have a custom
call in do_tcp_getsockopt using the on-stack data. This removes
3% overhead for locking/unlocking the socket.

Without this patch:
     3.38%     0.07%  tcp_mmap  [kernel.kallsyms]  [k] __cgroup_bpf_run_filter_getsockopt
            |
             --3.30%--__cgroup_bpf_run_filter_getsockopt
                       |
                        --0.81%--__kmalloc

With the patch applied:
     0.52%     0.12%  tcp_mmap  [kernel.kallsyms]  [k] __cgroup_bpf_run_filter_getsockopt_kern

Note, exporting uapi/tcp.h requires removing netinet/tcp.h
from test_progs.h because those headers have confliciting
definitions.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20210115163501.805133-2-sdf@google.com
Stable-dep-of: 2598619e012c ("sctp: add bpf_bypass_getsockopt proto callback")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-27 08:43:37 +02:00
..
ila ila: do not generate empty messages in ila_xlat_nl_cmd_get_mapping() 2023-03-17 08:45:10 +01:00
netfilter netfilter: tproxy: fix deadlock due to missing BH disable 2023-03-17 08:45:11 +01:00
addrconf_core.c ipv6: add ipv6_fragment hook in ipv6_stub 2020-08-31 12:26:39 -07:00
addrconf.c net: Fix data-races around sysctl_devconf_inherit_init_net. 2022-08-31 17:15:21 +02:00
addrlabel.c ipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to network 2022-11-16 09:57:11 +01:00
af_inet6.c dccp: Call inet6_destroy_sock() via sk->sk_destruct(). 2023-04-26 11:27:42 +02:00
ah6.c xfrm: Use actual socket sk instead of skb socket for xfrm_output_resume 2021-04-14 08:42:05 +02:00
anycast.c ipv6: fix memory leaks on IPV6_ADDRFORM path 2020-07-30 16:30:55 -07:00
calipso.c cipso,calipso: resolve a number of problems with the DOI refcounts 2021-03-17 17:06:15 +01:00
datagram.c ipv6: Fix datagram socket connection with DSCP. 2023-02-22 12:55:58 +01:00
esp6_offload.c xfrm: Linearize the skb after offloading if needed. 2023-06-28 10:28:11 +02:00
esp6.c esp: limit skb_page_frag_refill use to a single page 2022-04-27 13:53:48 +02:00
exthdrs_core.c ipv6: Fix out-of-bounds access in ipv6_find_tlv() 2023-05-30 12:57:58 +01:00
exthdrs_offload.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
exthdrs.c ipv6: rpl: Fix Route of Death. 2023-06-14 11:09:42 +02:00
fib6_notifier.c net: fib_notifier: propagate extack down to the notifier block callback 2019-10-04 11:10:56 -07:00
fib6_rules.c ipv6: fix memory leak in fib6_rule_suppress 2021-12-08 09:03:21 +01:00
fou6.c net: Add MODULE_DESCRIPTION entries to network modules 2020-06-20 21:33:57 -07:00
icmp.c lsm,selinux: pass flowi_common instead of flowi to the LSM hooks 2022-06-09 10:21:09 +02:00
inet6_connection_sock.c lsm,selinux: pass flowi_common instead of flowi to the LSM hooks 2022-06-09 10:21:09 +02:00
inet6_hashtables.c ipv6: add READ_ONCE(sk->sk_bound_dev_if) in INET6_MATCH() 2022-08-21 15:15:51 +02:00
ip6_checksum.c
ip6_fib.c ipv6: annotate accesses to fn->fn_sernum 2022-02-01 17:25:44 +01:00
ip6_flowlabel.c ipv6: per-netns exclusive flowlabel checks 2022-02-23 12:01:01 +01:00
ip6_gre.c erspan: get the proto with the md version for collect_md 2023-05-30 12:57:52 +01:00
ip6_icmp.c net: icmp: pass zeroed opts from icmp{,v6}_ndo_send before sending 2021-03-04 11:38:46 +01:00
ip6_input.c tcp/udp: Make early_demux back namespacified. 2022-11-10 18:14:26 +01:00
ip6_offload.c gso: do not skip outer ip header in case of ipip and net_failover 2022-03-02 11:42:49 +01:00
ip6_offload.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ip6_output.c ipv6: Fix an uninit variable access bug in __ip6_make_skb() 2023-04-20 12:10:21 +02:00
ip6_tunnel.c net: tunnels: annotate lockless accesses to dev->needed_headroom 2023-03-22 13:29:58 +01:00
ip6_udp_tunnel.c net: Make locking in sock_bindtoindex optional 2020-06-01 14:57:14 -07:00
ip6_vti.c ip6_vti: initialize __ip6_tnl_parm struct in vti6_siocdevprivate 2022-01-11 15:25:02 +01:00
ip6mr.c ipv6: make mc_forwarding atomic 2022-04-13 21:00:56 +02:00
ipcomp6.c ipcomp: assign if_id to child tunnel from parent tunnel 2020-07-09 12:55:37 +02:00
ipv6_sockglue.c udp: Call inet6_destroy_sock() in setsockopt(IPV6_ADDRFORM). 2023-04-26 11:27:41 +02:00
Kconfig net: ipv6: fix kconfig dependency warning for IPV6_SEG6_HMAC 2020-09-18 17:45:04 -07:00
Makefile net: ipv6: add rpl sr tunnel 2020-03-29 22:30:57 -07:00
mcast_snoop.c net: bridge: mcast: fix broken length + header check for MRDv6 Adv. 2021-05-14 09:50:44 +02:00
mcast.c mld: fix panic in mld_newpack() 2021-06-03 09:00:48 +02:00
mip6.c xfrm: remove type and offload_type map from xfrm_state_afinfo 2019-06-06 08:34:50 +02:00
ndisc.c net: Exempt multicast addresses from five-second neighbor lifetime 2020-11-13 14:24:39 -08:00
netfilter.c netfilter: use actual socket sk rather than skb sk when routing harder 2020-10-30 12:57:39 +01:00
output_core.c ipv6: use prandom_u32() for ID generation 2021-07-19 09:44:44 +02:00
ping.c ping6: Fix send to link-local addresses with VRF. 2023-06-21 15:45:38 +02:00
proc.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-06-07 11:00:14 -07:00
protocol.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
raw.c ipv{4,6}/raw: fix output xfrm lookup wrt protocol 2023-06-05 09:07:04 +02:00
reassembly.c ipv6: record frag_max_size in atomic fragments in input path 2021-06-03 09:00:50 +02:00
route.c ipv6: Add lwtunnel encap size of all siblings in nexthop calculation 2023-03-11 16:40:12 +01:00
rpl_iptunnel.c net: ipv6: Use struct_size() helper and kcalloc() 2020-06-23 20:27:09 -07:00
rpl.c net: rpl: fix rpl header size calculation 2023-04-26 11:27:36 +02:00
seg6_hmac.c net: ipv6: unexport __init-annotated seg6_hmac_net_init() 2022-07-07 17:52:17 +02:00
seg6_iptunnel.c seg6: fix skb checksum evaluation in SRH encapsulation/insertion 2022-07-21 21:20:11 +02:00
seg6_local.c seg6: fix skb checksum in SRv6 End.B6 and End.B6.Encaps behaviors 2022-07-21 21:20:11 +02:00
seg6.c ipv6: sr: fix out-of-bounds read when setting HMAC data. 2022-09-15 11:32:05 +02:00
sit.c sit: update dev->needed_headroom in ipip6_tunnel_bind_dev() 2023-05-17 11:48:10 +02:00
syncookies.c tcp: Fix data-races around sysctl_tcp_syncookies. 2022-07-29 17:19:16 +02:00
sysctl_net_ipv6.c ipv6: Fix sysctl max for fib_multipath_hash_policy 2020-09-02 15:44:53 -07:00
tcp_ipv6.c bpf: Remove extra lock_sock for TCP_ZEROCOPY_RECEIVE 2023-07-27 08:43:37 +02:00
tcpv6_offload.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
tunnel6.c tunnel6: add tunnel6_input_afinfo for ipip and ipv6 tunnels 2020-07-09 12:52:37 +02:00
udp_impl.h tcp/udp: Call inet6_destroy_sock() in IPv6 sk->sk_destruct(). 2023-04-26 11:27:41 +02:00
udp_offload.c udp: ipv4: manipulate network header of NATed UDP GRO fraglist 2021-02-10 09:29:23 +01:00
udp.c inet6: Remove inet6_destroy_sock() in sk->sk_prot->destroy(). 2023-04-26 11:27:41 +02:00
udplite.c udplite: Fix NULL pointer dereference in __sk_mem_raise_allocated(). 2023-05-30 12:57:57 +01:00
xfrm6_input.c xfrm: fix inbound ipv4/udp/esp packets to UDPv6 dualstack sockets 2023-06-28 10:28:10 +02:00
xfrm6_output.c xfrm: fix tunnel model fragmentation behavior 2022-04-08 14:39:47 +02:00
xfrm6_policy.c xfrm: Fix ignored return value in xfrm6_init() 2022-12-02 17:40:01 +01:00
xfrm6_protocol.c xfrm: add support for UDPv6 encapsulation of ESP 2020-04-28 11:28:36 +02:00
xfrm6_state.c xfrm: remove output_finish indirection from xfrm_state_afinfo 2020-05-06 09:40:08 +02:00
xfrm6_tunnel.c xfrm: interface: fix the priorities for ipip and ipv6 tunnels 2020-10-09 12:29:48 +02:00