Joanne Koong d5a42de8bd net: Add a second bind table hashed by port and address ... We currently have one tcp bind table (bhash) which hashes by port number only. In the socket bind path, we check for bind conflicts by traversing the specified port's inet_bind2_bucket while holding the bucket's spinlock (see inet_csk_get_port() and inet_csk_bind_conflict()). In instances where there are tons of sockets hashed to the same port at different addresses, checking for a bind conflict is time-intensive and can cause softirq cpu lockups, as well as stops new tcp connections since __inet_inherit_port() also contests for the spinlock. This patch proposes adding a second bind table, bhash2, that hashes by port and ip address. Searching the bhash2 table leads to significantly faster conflict resolution and less time holding the spinlock. Signed-off-by: Joanne Koong <joannelkoong@gmail.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Acked-by: Kuniyuki Iwashima <kuniyu@amazon.co.jp> Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2022-05-20 18:16:24 -07:00
..
6lowpan	net: don't include ndisc.h from ipv6.h	2022-02-04 14:15:11 -08:00
9p	xen/grant-table: remove readonly parameter from functions	2022-03-15 20:34:40 -05:00
802
8021q	net: add netif_inherit_tso_max()	2022-05-06 12:07:56 +01:00
appletalk	net: remove noblock parameter from skb_recv_datagram()	2022-04-06 13:45:26 +01:00
atm	net: SO_RCVMARK socket option for SO_MARK with recvmsg()	2022-04-28 13:08:15 -07:00
ax25	ax25: merge repeat codes in ax25_dev_device_down()	2022-05-17 12:24:16 +02:00
batman-adv	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-05-12 16:15:30 -07:00
bluetooth	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-05-12 16:15:30 -07:00
bpf	net: allow gso_max_size to exceed 65536	2022-05-16 10:18:55 +01:00
bpfilter	uaccess: remove CONFIG_SET_FS	2022-02-25 09:36:06 +01:00
bridge	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-05-19 11:23:59 -07:00
caif	net: remove noblock parameter from skb_recv_datagram()	2022-04-06 13:45:26 +01:00
can	can: isotp: isotp_bind(): do not validate unused address information	2022-05-19 22:11:28 +02:00
ceph	libceph: disambiguate cluster/pool full log message	2022-04-25 10:45:15 +02:00
core	net: avoid strange behavior with skb_defer_max == 1	2022-05-20 17:05:36 -07:00
dcb	net: dcb: disable softirqs in dcbnl_flush_dev()	2022-03-03 08:01:55 -08:00
dccp	net: Add a second bind table hashed by port and address	2022-05-20 18:16:24 -07:00
decnet	dn_route: set rt neigh to blackhole_netdev instead of loopback_dev in ifdown	2022-05-17 18:03:23 -07:00
dns_resolver
dsa	net: dsa: remove port argument from ->change_tag_protocol()	2022-05-12 16:38:55 -07:00
ethernet	net: ethernet: set default assignment identifier to NET_NAME_ENUM	2022-04-07 21:04:03 -07:00
ethtool	ethtool: Add 10base-T1L link mode entry	2022-05-01 17:45:35 +01:00
hsr	net: add per-cpu storage and net->core_stats	2022-03-11 23:17:24 -08:00
ieee802154	net: SO_RCVMARK socket option for SO_MARK with recvmsg()	2022-04-28 13:08:15 -07:00
ife
ipv4	net: Add a second bind table hashed by port and address	2022-05-20 18:16:24 -07:00
ipv6	tcp_ipv6: set the drop_reason in the right place	2022-05-20 09:35:42 -07:00
iucv	net: remove noblock parameter from skb_recv_datagram()	2022-04-06 13:45:26 +01:00
kcm	net: Don't include filter.h from net/sock.h	2021-12-29 08:48:14 -08:00
key	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-05-19 11:23:59 -07:00
l2tp	l2tp: use add READ_ONCE() to fetch sk->sk_bound_dev_if	2022-05-16 10:31:06 +01:00
l3mdev	l3mdev: l3mdev_master_upper_ifindex_by_index_rcu should be using netdev_master_upper_dev_get_rcu	2022-04-15 14:27:24 -07:00
lapb
llc	llc: only change llc->dev when bind() succeeds	2022-03-25 16:55:41 -07:00
mac80211	wireless-next patches for v5.19	2022-05-19 13:01:08 -07:00
mac802154	net: mac802154: Fix symbol durations	2022-04-30 20:29:47 +02:00
mctp	net: SO_RCVMARK socket option for SO_MARK with recvmsg()	2022-04-28 13:08:15 -07:00
mpls	net: mpls: fix memdup.cocci warning	2022-04-07 21:06:41 -07:00
mptcp	mptcp: Do not traverse the subflow connection list without lock	2022-05-19 20:05:07 -07:00
ncsi	all: replace find_next{,_zero}_bit with find_first{,_zero}_bit where appropriate	2022-01-15 08:47:31 -08:00
netfilter	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next	2022-05-19 21:53:08 -07:00
netlabel	netlabel: fix out-of-bounds memory accesses	2022-03-21 10:59:11 +00:00
netlink	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-05-12 16:15:30 -07:00
netrom	net: remove noblock parameter from skb_recv_datagram()	2022-04-06 13:45:26 +01:00
nfc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-05-19 11:23:59 -07:00
nsh
openvswitch	openvswitch: fix OOB access in reserve_sfa_size()	2022-04-15 11:50:02 +01:00
packet	net: SO_RCVMARK socket option for SO_MARK with recvmsg()	2022-04-28 13:08:15 -07:00
phonet	net: remove noblock parameter from recvmsg() entities	2022-04-12 15:00:25 +02:00
psample
qrtr	net: remove noblock parameter from skb_recv_datagram()	2022-04-06 13:45:26 +01:00
rds	net: rds: use maybe_get_net() when acquiring refcount on TCP sockets	2022-05-05 16:44:49 -07:00
rfkill	rfkill: make new event layout opt-in	2022-03-18 13:09:17 +02:00
rose	ROSE: Remove unused code and clean up some inconsistent indenting	2022-05-09 17:19:27 -07:00
rxrpc	rxrpc: Enable IPv6 checksums on transport socket	2022-04-30 13:59:34 +01:00
sched	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-05-19 11:23:59 -07:00
sctp	stcp: Use memset_after() to zero sctp_stream_out_ext	2022-05-20 17:42:53 -07:00
smc	net/smc: rdma write inline if qp has sufficient inline space	2022-05-17 17:34:12 -07:00
strparser
sunrpc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-05-19 11:23:59 -07:00
switchdev	net: switchdev: remove lag_mod_cb from switchdev_handle_fdb_event_to_device	2022-02-24 21:31:43 -08:00
tipc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-03-23 10:53:49 -07:00
tls	net: tls: fix messing up lists when bpf enabled	2022-05-19 17:55:06 -07:00
unix	net: remove noblock parameter from recvmsg() entities	2022-04-12 15:00:25 +02:00
vmw_vsock	vsock/virtio: add support for device suspend/resume	2022-05-02 16:04:34 -07:00
wireless	wireless-next patches for v5.19	2022-05-19 13:01:08 -07:00
x25	x25: remove redundant pointer dev	2022-05-10 11:59:22 +02:00
xdp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-04-28 13:02:01 -07:00
xfrm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2022-05-19 11:23:59 -07:00
compat.c
devres.c
Kconfig	page_pool: Add allocation stats	2022-03-03 09:55:28 +00:00
Kconfig.debug	net: add CONFIG_DEBUG_NET	2022-05-11 12:43:10 +01:00
Makefile
socket.c	ptp: Support late timestamp determination	2022-05-10 09:48:08 +02:00
sysctl_net.c