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e66d117222
linux/net
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Eric Dumazet e66d117222 ipv6/addrconf: switch to per netns inet6_addr_lst hash table 
IPv6 does not scale very well with the number of IPv6 addresses.
It uses a global (shared by all netns) hash table with 256 buckets.

Some functions like addrconf_verify_rtnl() and addrconf_ifdown()
have to iterate all addresses in the hash table.

I have seen addrconf_verify_rtnl() holding the cpu for 10ms or more.

Switch to the per netns hashtable (and spinlock) added
in prior patches.

This considerably speeds up netns dismantle times on hosts
with thousands of netns. This also has an impact
on regular (fast path) IPv6 processing.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-02-08 20:41:32 -08:00
..
6lowpan net: don't include ndisc.h from ipv6.h 2022-02-04 14:15:11 -08:00
9p virtio,vdpa,qemu_fw_cfg: features, cleanups, fixes 2022-01-18 10:05:48 +02:00
802 net: 802: Use memset_startat() to clear struct fields 2021-11-19 11:23:23 +00:00
8021q vlan: add net device refcount tracker 2021-12-07 20:44:58 -08:00
appletalk
atm proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
ax25 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-02-03 17:36:16 -08:00
batman-adv ipv6: make mc_forwarding atomic 2022-02-05 15:20:34 +00:00
bluetooth bluetooth-next pull request for net-next: 2022-01-28 13:39:07 -08:00
bpf bpf: Fix flexible_array.cocci warnings 2022-01-24 17:11:39 +01:00
bpfilter
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2022-01-27 18:53:02 -08:00
caif caif: cleanup double word in comment 2022-02-07 12:06:54 +00:00
can proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
ceph The highlight is the new mount "device" string syntax implemented 2022-01-20 13:46:20 +02:00
core net: add dev->dev_registered_tracker 2022-02-08 20:23:20 -08:00
dcb
dccp dccp: remove max48() 2022-01-27 13:53:27 +00:00
decnet Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2021-12-31 14:35:40 +00:00
dns_resolver
dsa net: dsa: tag_qca: add support for handling mgmt and MIB Ethernet packet 2022-02-02 14:43:59 +00:00
ethernet gro: remove rcu_read_lock/rcu_read_unlock from gro_complete handlers 2021-11-24 17:21:42 -08:00
ethtool ethtool: add header/data split indication 2022-01-28 14:43:47 +00:00
hsr net: hsr: use hlist_head instead of list_head for mac addresses 2022-02-06 10:55:52 +00:00
ieee802154 net: don't include ndisc.h from ipv6.h 2022-02-04 14:15:11 -08:00
ife
ipv4 ipv4: Use dscp_t in struct fib_alias 2022-02-07 20:12:46 -08:00
ipv6 ipv6/addrconf: switch to per netns inet6_addr_lst hash table 2022-02-08 20:41:32 -08:00
iucv net: Don't include filter.h from net/sock.h 2021-12-29 08:48:14 -08:00
kcm net: Don't include filter.h from net/sock.h 2021-12-29 08:48:14 -08:00
key
l2tp l2tp: add netns refcount tracker to l2tp_dfs_seq_data 2021-12-10 06:38:27 -08:00
l3mdev
lapb
llc sock: Use sock_owned_by_user_nocheck() instead of sk_lock.owned. 2021-12-10 19:43:00 -08:00
mac80211 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-01-05 14:36:10 -08:00
mac802154
mctp net: don't include ndisc.h from ipv6.h 2022-02-04 14:15:11 -08:00
mpls Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-12-02 11:44:56 -08:00
mptcp mptcp: allow to use port and non-signal in set_flags 2022-02-04 20:30:23 -08:00
ncsi all: replace find_next{,_zero}_bit with find_first{,_zero}_bit where appropriate 2022-01-15 08:47:31 -08:00
netfilter net: netfilter: use kfree_drop_reason() for NF_DROP 2022-02-07 11:18:49 +00:00
netlabel lsm: security_task_getsecid_subj() -> security_current_getsecid_subj() 2021-11-22 17:52:47 -05:00
netlink net: Don't include filter.h from net/sock.h 2021-12-29 08:48:14 -08:00
netrom netrom: fix api breakage in nr_setsockopt() 2022-01-07 14:11:05 +00:00
nfc Networking fixes for 5.17-rc1, including fixes from netfilter, bpf. 2022-01-20 10:57:05 +02:00
nsh
openvswitch net/sched: Enable tc skb ext allocation on chain miss only when needed 2022-02-05 10:12:53 +00:00
packet af_packet: fix data-race in packet_setsockopt / packet_setsockopt 2022-02-01 20:21:10 -08:00
phonet phonet/pep: refuse to enable an unbound pipe 2021-12-20 11:49:51 +00:00
psample
qrtr bus: mhi: core: Add an API for auto queueing buffers for DL channel 2021-12-17 17:17:14 +01:00
rds Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-12-16 16:13:19 -08:00
rfkill rfkill: allow to get the software rfkill state 2021-12-20 11:02:38 +01:00
rose net: Don't include filter.h from net/sock.h 2021-12-29 08:48:14 -08:00
rxrpc rxrpc: Adjust retransmission backoff 2022-01-22 02:03:24 +00:00
sched net/sched: Enable tc skb ext allocation on chain miss only when needed 2022-02-05 10:12:53 +00:00
sctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-01-05 14:36:10 -08:00
smc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-02-03 17:36:16 -08:00
strparser bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding 2021-11-09 01:05:28 +01:00
sunrpc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-02-03 17:36:16 -08:00
switchdev net: switchdev: add net device refcount tracker 2021-12-07 20:44:58 -08:00
tipc net: tipc: remove unused static inlines 2022-01-27 13:53:27 +00:00
tls tls: cap the output scatter list to something reasonable 2022-02-04 10:14:07 +00:00
unix Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2022-01-24 15:42:29 -08:00
vmw_vsock virtio,vdpa,qemu_fw_cfg: features, cleanups, fixes 2022-01-18 10:05:48 +02:00
wireless Kbuild updates for v5.17 2022-01-19 11:15:19 +02:00
x25 net: x25: drop harmless check of !more 2021-12-09 18:35:11 -08:00
xdp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-01-05 14:36:10 -08:00
xfrm xfrm: Don't accidentally set RTO_ONLINK in decode_session4() 2022-01-11 20:36:08 -08:00
compat.c
devres.c
Kconfig net: kunit: add a test for dev_addr_lists 2021-11-20 12:25:57 +00:00
Kconfig.debug net: add networking namespace refcount tracker 2021-12-10 06:38:26 -08:00
Makefile
socket.c net: fix SOF_TIMESTAMPING_BIND_PHC to work with multiple sockets 2022-01-06 12:18:08 +00:00
sysctl_net.c sections: move and rename core_kernel_data() to is_kernel_core_data() 2021-11-09 10:02:50 -08:00