Eric Dumazet 2a06b8982f net: reorder 'struct net' fields to avoid false sharing ... Intel test robot reported a ~7% regression on TCP_CRR tests that they bisected to the cited commit. Indeed, every time a new TCP socket is created or deleted, the atomic counter net->count is touched (via get_net(net) and put_net(net) calls) So cpus might have to reload a contended cache line in net_hash_mix(net) calls. We need to reorder 'struct net' fields to move @hash_mix in a read mostly cache line. We move in the first cache line fields that can be dirtied often. We probably will have to address in a followup patch the __randomize_layout that was added in linux-4.13, since this might break our placement choices. Fixes: 355b985537 ("netns: provide pure entropy for net_hash_mix()") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: kernel test robot <oliver.sang@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2019-10-19 12:21:53 -07:00
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9p	…
bluetooth	Bluetooth: Add support for utilizing Fast Advertising Interval	2019-09-05 17:27:21 +02:00
caif	…
iucv	…
netfilter	netfilter: nf_tables: bogus EBUSY when deleting flowtable after flush	2019-09-25 11:01:19 +02:00
netns	can: netns: remove "can_" prefix from members struct netns_can	2019-09-04 13:29:14 +02:00
nfc	…
phonet	…
sctp	sctp: add chunks to sk_backlog when the newsk sk_socket is not set	2019-10-09 16:27:04 -07:00
tc_act	net: sched: take reference to psample group in flow_action infra	2019-09-16 09:18:03 +02:00
6lowpan.h	…
Space.h	…
act_api.h	net: sched: use get_dev() action API in flow_action infra	2019-09-16 09:18:03 +02:00
addrconf.h	ipv6: Fix return value of ipv6_mc_may_pull() for malformed packets	2019-08-19 17:19:46 -07:00
af_ieee802154.h	…
af_rxrpc.h	…
af_unix.h	…
af_vsock.h	…
ah.h	…
arp.h	…
atmclip.h	…
ax25.h	…
ax88796.h	…
bond_3ad.h	…
bond_alb.h	…
bond_options.h	…
bonding.h	…
bpf_sk_storage.h	bpf: support cloning sk storage on accept()	2019-08-17 23:18:54 +02:00
busy_poll.h	…
calipso.h	…
cfg80211-wext.h	…
cfg80211.h	mac80211: fix scan when operating on DFS channels in ETSI domains	2019-10-07 22:10:50 +02:00
cfg802154.h	…
checksum.h	…
cipso_ipv4.h	…
cls_cgroup.h	…
codel.h	…
codel_impl.h	…
codel_qdisc.h	…
compat.h	…
datalink.h	…
dcbevent.h	…
dcbnl.h	…
devlink.h	net: devlink: move reload fail indication to devlink core and expose to user	2019-09-13 22:11:14 +02:00
dn.h	…
dn_dev.h	…
dn_fib.h	…
dn_neigh.h	…
dn_nsp.h	…
dn_route.h	…
drop_monitor.h	drop_monitor: Add basic infrastructure for hardware drops	2019-08-17 12:40:08 -07:00
dsa.h	net: dsa: Pass ndo_setup_tc slave callback to drivers	2019-09-16 21:32:57 +02:00
dsfield.h	…
dst.h	…
dst_cache.h	…
dst_metadata.h	…
dst_ops.h	…
erspan.h	…
esp.h	…
ethoc.h	…
failover.h	…
fib_notifier.h	…
fib_rules.h	…
firewire.h	…
flow.h	…
flow_dissector.h	…
flow_offload.h	net: sched: extend flow_action_entry with destructor	2019-09-16 09:18:02 +02:00
fou.h	…
fq.h	…
fq_impl.h	…
garp.h	…
gen_stats.h	…
genetlink.h	…
geneve.h	…
gre.h	…
gro_cells.h	…
gtp.h	…
gue.h	…
hwbm.h	…
icmp.h	…
ieee80211_radiotap.h	…
ieee802154_netdev.h	…
if_inet6.h	ipv6: shrink struct ipv6_mc_socklist	2019-08-28 14:43:03 -07:00
ife.h	…
ila.h	…
inet6_connection_sock.h	…
inet6_hashtables.h	…
inet_common.h	…
inet_connection_sock.h	net/tls: use RCU protection on icsk->icsk_ulp_data	2019-08-31 23:44:28 -07:00
inet_ecn.h	…
inet_frag.h	inet: frags: re-introduce skb coalescing for local delivery	2019-08-08 15:55:10 -07:00
inet_hashtables.h	…
inet_sock.h	ip: support SO_MARK cmsg	2019-09-13 21:44:19 +02:00
inet_timewait_sock.h	tcp: honor SO_PRIORITY in TIME_WAIT state	2019-09-27 12:05:02 +02:00
inetpeer.h	…
ip.h	ip: support SO_MARK cmsg	2019-09-13 21:44:19 +02:00
ip6_checksum.h	…
ip6_fib.h	…
ip6_route.h	…
ip6_tunnel.h	…
ip_fib.h	net: Properly update v4 routes with v6 nexthop	2019-09-05 12:35:58 +02:00
ip_tunnels.h	…
ip_vs.h	…
ipcomp.h	…
ipconfig.h	…
ipv6.h	ipv6: add priority parameter to ip6_xmit()	2019-09-27 12:05:02 +02:00
ipv6_frag.h	…
ipv6_stubs.h	…
ipx.h	…
iw_handler.h	…
kcm.h	…
l3mdev.h	…
lag.h	…
lapb.h	…
lib80211.h	…
llc.h	…
llc_c_ac.h	…
llc_c_ev.h	…
llc_c_st.h	…
llc_conn.h	llc: fix sk_buff leak in llc_conn_service()	2019-10-08 13:23:05 -07:00
llc_if.h	…
llc_pdu.h	…
llc_s_ac.h	…
llc_s_ev.h	…
llc_s_st.h	…
llc_sap.h	…
lwtunnel.h	…
mac80211.h	mac80211: allow drivers to set max MTU	2019-09-11 09:33:29 +02:00
mac802154.h	…
mip6.h	…
mld.h	…
mpls.h	…
mpls_iptunnel.h	…
mrp.h	…
ncsi.h	…
ndisc.h	…
neighbour.h	…
net_failover.h	…
net_namespace.h	net: reorder 'struct net' fields to avoid false sharing	2019-10-19 12:21:53 -07:00
net_ratelimit.h	…
netevent.h	…
netlabel.h	…
netlink.h	netlink: Fix nlmsg_parse as a wrapper for strict message parsing	2019-08-13 20:37:16 -07:00
netprio_cgroup.h	…
netrom.h	…
nexthop.h	net: Properly update v4 routes with v6 nexthop	2019-09-05 12:35:58 +02:00
nl802154.h	…
nsh.h	…
p8022.h	…
page_pool.h	…
ping.h	…
pkt_cls.h	net: sched: take reference to action dev before calling offloads	2019-08-26 14:17:43 -07:00
pkt_sched.h	Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net	2019-09-17 23:51:10 +02:00
pptp.h	…
protocol.h	…
psample.h	net: sched: take reference to psample group in flow_action infra	2019-09-16 09:18:03 +02:00
psnap.h	…
raw.h	…
rawv6.h	…
red.h	…
regulatory.h	…
request_sock.h	net: add {READ|WRITE}_ONCE() annotations on ->rskq_accept_head	2019-10-09 21:34:31 -07:00
rose.h	…
route.h	ipv4: Revert removal of rt_uses_gateway	2019-09-20 18:23:33 -07:00
rsi_91x.h	…
rtnetlink.h	…
rtnh.h	…
sch_generic.h	sch_netem: fix rcu splat in netem_enqueue()	2019-09-27 10:29:11 +02:00
scm.h	…
secure_seq.h	…
seg6.h	…
seg6_hmac.h	…
seg6_local.h	…
slhc_vj.h	…
smc.h	…
snmp.h	…
sock.h	tcp: annotate sk->sk_wmem_queued lockless reads	2019-10-13 10:13:08 -07:00
sock_reuseport.h	udp: correct reuseport selection with connected sockets	2019-09-16 09:02:18 +02:00
stp.h	…
strparser.h	…
switchdev.h	…
tcp.h	tcp: annotate sk->sk_rcvbuf lockless reads	2019-10-13 10:13:08 -07:00
tcp_states.h	…
timewait_sock.h	…
tipc.h	…
tls.h	net/tls: clean up the number of #ifdefs for CONFIG_TLS_DEVICE	2019-09-05 09:49:49 +02:00
transp_v6.h	…
tso.h	…
tun_proto.h	…
udp.h	udp: Remove unlikely() from IS_ERR*() condition	2019-08-30 19:49:37 -07:00
udp_tunnel.h	…
udplite.h	…
vsock_addr.h	…
vxlan.h	Convert usage of IN_MULTICAST to ipv4_is_multicast	2019-09-05 09:38:32 +02:00
wext.h	…
wimax.h	…
x25.h	…
x25device.h	…
xdp.h	…
xdp_priv.h	…
xdp_sock.h	xsk: add support to allow unaligned chunk placement	2019-08-31 01:08:26 +02:00
xfrm.h	…