Kuniyuki Iwashima
df89c1ee03
udp: Improve load balancing for SO_REUSEPORT. ...
[ Upstream commit efc6b6f6c3113e8b203b9debfb72d81e0f3dcace ]
Currently, SO_REUSEPORT does not work well if connected sockets are in a
UDP reuseport group.
Then reuseport_has_conns() returns true and the result of
reuseport_select_sock() is discarded. Also, unconnected sockets have the
same score, hence only does the first unconnected socket in udp_hslot
always receive all packets sent to unconnected sockets.
So, the result of reuseport_select_sock() should be used for load
balancing.
The noteworthy point is that the unconnected sockets placed after
connected sockets in sock_reuseport.socks will receive more packets than
others because of the algorithm in reuseport_select_sock().
index | connected | reciprocal_scale | result
---------------------------------------------
0 | no | 20% | 40%
1 | no | 20% | 20%
2 | yes | 20% | 0%
3 | no | 20% | 40%
4 | yes | 20% | 0%
If most of the sockets are connected, this can be a problem, but it still
works better than now.
Fixes: acdcecc612
2020-07-31 18:39:31 +02:00
netfilter: nf_conntrack_pptp: prevent buffer overflows in debug code
2020-06-03 08:21:35 +02:00
net: remove empty inet_exit_net
2019-08-19 18:22:54 -07:00
netlabel: cope with NULL catmap
2020-05-20 08:20:08 +02:00
inet: stop leaking jiffies on the wire
2019-11-01 14:57:52 -07:00
devinet: fix memleak in inetdev_init()
2020-06-10 20:24:54 +02:00
xfrm: remove the xfrm_state_put call becofe going to out_reset
2020-06-03 08:21:32 +02:00
ipv4: nexthop version of fib_info_nh_uses_dev
2020-06-03 08:21:37 +02:00
net: Fix the arp error in some cases
2020-06-30 15:36:44 -04:00
ipv4: fix a RCU-list lock in fib_triestat_seq_show
2020-06-17 16:40:24 +02:00
fou: Fix IPv6 netlink policy
2020-01-29 16:45:22 +01:00
gre: fix uninit-value in __iptunnel_pull_header
2020-03-18 07:17:38 +01:00
ip: Fix SO_MARK in RST, ACK and ICMP packets
2020-07-22 09:32:50 +02:00
net: fix __ip_mc_inc_group usage
2019-08-20 12:48:06 -07:00
net: inet_csk: Fix so_reuseport bind-address cache in tb->fast*
2020-06-03 08:20:48 +02:00
inet_diag: return classid for all socket types
2020-03-18 07:17:38 +01:00
inet: frags: re-introduce skb coalescing for local delivery
2019-08-08 15:55:10 -07:00
tcp/dccp: fix possible race __inet_lookup_established()
2020-01-04 19:19:13 +01:00
inetpeer: fix data-race in inet_putpeer / inet_putpeer
2020-01-04 19:18:39 +01:00
ipv4: Revert removal of rt_uses_gateway
2019-09-20 18:23:33 -07:00
inet: frags: re-introduce skb coalescing for local delivery
2019-08-08 15:55:10 -07:00
net: ip_gre: Accept IFLA_INFO_DATA-less configuration
2020-04-01 11:01:46 +02:00
netfilter: drop bridge nf reset from nf_reset
2019-10-01 18:42:15 +02:00
ip: Fix SO_MARK in RST, ACK and ICMP packets
2020-07-22 09:32:50 +02:00
ip_tunnel: fix use-after-free in ip_tunnel_lookup()
2020-06-30 15:36:46 -04:00
ip_vti: receive ipip packet by calling ip_tunnel_rcv
2020-06-03 08:21:34 +02:00
net: ipip: fix wrong address family in init error path
2020-06-03 08:20:52 +02:00
net: don't return invalid table id error when we fall back to PF_UNSPEC
2020-06-03 08:20:41 +02:00
vti[6]: fix packet tx through bpf_redirect() in XinY cases
2020-04-01 11:02:05 +02:00
nexthops: don't modify published nexthop groups
2020-06-03 08:21:37 +02:00
ipv4: fill fl4_icmp_{type,code} in ping_v4_sendmsg
2020-07-22 09:32:47 +02:00
netfilter: drop bridge nf reset from nf_reset
2019-10-01 18:42:15 +02:00
inet_diag: return classid for all socket types
2020-03-18 07:17:38 +01:00
net: revert "net: get rid of an signed integer overflow in ip_idents_reserve()"
2020-06-03 08:21:00 +02:00
net/ipv4: fix sysctl max for fib_multipath_hash_policy
2019-11-18 17:25:36 -08:00
tcp: md5: allow changing MD5 keys in all socket states
2020-07-22 09:32:49 +02:00
tcp_bbr: improve arithmetic division in bbr_update_bw()
2020-01-29 16:45:21 +01:00
bpf/sockmap: Fix kernel panic at __tcp_bpf_recvmsg
2020-06-24 17:50:42 +02:00
tcp: make sure listeners don't initialize congestion-control state
2020-07-22 09:32:48 +02:00
tcp_cubic: fix spurious HYSTART_DELAY exit upon drop in min RTT
2020-06-30 15:36:47 -04:00
tcp: annotate tp->write_seq lockless reads
2019-10-13 10:13:08 -07:00
tcp: add rcu protection around tp->fastopen_rsk
2019-10-13 10:13:08 -07:00
tcp: allow at most one TLP probe per flight
2020-07-31 18:39:31 +02:00
tcp: md5: refine tcp_md5_do_add()/tcp_md5_hash_key() barriers
2020-07-22 09:32:49 +02:00
tcp: annotate tp->snd_nxt lockless reads
2019-10-13 10:13:08 -07:00
tcp: allow at most one TLP probe per flight
2020-07-31 18:39:31 +02:00
tcp: add rcu protection around tp->fastopen_rsk
2019-10-13 10:13:08 -07:00
bpf: Sockmap/tls, push write_space updates through ulp updates
2020-01-23 08:22:45 +01:00
udp: Improve load balancing for SO_REUSEPORT.
2020-07-31 18:39:31 +02:00
inet_diag: return classid for all socket types
2020-03-18 07:17:38 +01:00
xfrm: Always set XFRM_TRANSFORMED in xfrm{4,6}_output_finish
2020-04-29 16:33:11 +02:00
net: add bool confirm_neigh parameter for dst_ops.update_pmtu
2020-01-04 19:18:58 +01:00
df89c1ee03