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Taehee Yoo 63ed8de4be mld: add mc_lock for protecting per-interface mld data 
The purpose of this lock is to avoid a bottleneck in the query/report
event handler logic.

By previous patches, almost all mld data is protected by RTNL.
So, the query and report event handler, which is data path logic
acquires RTNL too. Therefore if a lot of query and report events
are received, it uses RTNL for a long time.
So it makes the control-plane bottleneck because of using RTNL.
In order to avoid this bottleneck, mc_lock is added.

mc_lock protect only per-interface mld data and per-interface mld
data is used in the query/report event handler logic.
So, no longer rtnl_lock is needed in the query/report event handler logic.
Therefore bottleneck will be disappeared by mc_lock.

Suggested-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-26 15:14:56 -07:00
..
6lowpan 6lowpan: Fix some typos in nhc_udp.c 2021-03-24 17:52:11 -07:00
9p net: 9p: advance iov on empty read 2021-03-03 16:57:59 -08:00
802
8021q net: bridge: resolve forwarding path for VLAN tag actions in bridge devices 2021-03-24 12:48:38 -07:00
appletalk appletalk: Fix skb allocation size in loopback case 2021-02-12 16:40:28 -08:00
atm net: atm: pppoatm: use new API for wakeup tasklet 2021-01-29 18:24:05 -08:00
ax25 net: ax25: Fix fall-through warnings for Clang 2021-03-10 12:45:15 -08:00
batman-adv mld: convert ifmcaddr6 to RCU 2021-03-26 15:14:56 -07:00
bluetooth Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kern 2021-02-11 14:59:01 -08:00
bpf bpf: Add PROG_TEST_RUN support for sk_lookup programs 2021-03-04 19:11:29 -08:00
bpfilter net: remove redundant 'depends on NET' 2021-01-27 17:04:12 -08:00
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-03-25 15:31:22 -07:00
caif net: caif: Use netif_rx_any_context(). 2021-02-15 13:21:48 -08:00
can can: isotp: tx-path: zero initialize outgoing CAN frames 2021-03-20 20:21:35 +01:00
ceph net: ceph: Fix a typo in osdmap.c 2021-03-25 17:05:07 -07:00
core net: change netdev_unregister_timeout_secs min value to 1 2021-03-25 17:24:06 -07:00
dcb net: dcb: use obj-$(CONFIG_DCB) form in net/Makefile 2021-01-27 17:03:52 -08:00
dccp ipv6: weaken the v4mapped source check 2021-03-18 11:19:23 -07:00
decnet net: decnet: Fix a typo in dn_nsp_in.c 2021-03-25 17:05:07 -07:00
dns_resolver net: remove redundant 'depends on NET' 2021-01-27 17:04:12 -08:00
dsa net: dsa: Fix a typo in tag_rtl4_a.c 2021-03-25 17:05:08 -07:00
ethernet ethernet: avoid retpoline overhead on TEB (GENEVE, NvGRE, VxLAN) GRO 2021-03-18 19:51:12 -07:00
ethtool ethtool: fec: fix FEC_NONE check 2021-03-26 15:09:45 -07:00
hsr /net/hsr: fix misspellings using codespell tool 2021-03-18 19:13:41 -07:00
ieee802154 treewide: rename nla_strlcpy to nla_strscpy. 2020-11-16 08:08:54 -08:00
ife net: remove redundant 'depends on NET' 2021-01-27 17:04:12 -08:00
ipv4 tcp: convert elligible sysctls to u8 2021-03-25 17:39:33 -07:00
ipv6 mld: add mc_lock for protecting per-interface mld data 2021-03-26 15:14:56 -07:00
iucv net/af_iucv: build SG skbs for TRANS_HIPER sockets 2021-01-28 20:36:22 -08:00
kcm net: group skb_shinfo zerocopy related bits together. 2021-01-07 16:08:37 -08:00
key af_key: relax availability checks for skb size calculation 2021-01-04 10:05:50 +01:00
l2tp net: l2tp: Fix a typo 2021-03-22 13:17:49 -07:00
l3mdev net: l3mdev: use obj-$(CONFIG_NET_L3_MASTER_DEV) form in net/Makefile 2021-01-27 17:03:52 -08:00
lapb net: lapb: Make "lapb_t1timer_running" able to detect an already running timer 2021-03-23 14:14:50 -07:00
llc net: remove redundant 'depends on NET' 2021-01-27 17:04:12 -08:00
mac80211 mac80211: choose first enabled channel for monitor 2021-03-16 21:20:47 +01:00
mac802154 net: mac802154: convert tasklets to use new tasklet_setup() API 2020-11-07 10:40:56 -08:00
mpls net: avoid infinite loop in mpls_gso_segment when mpls_hlen == 0 2021-03-09 16:12:20 -08:00
mptcp mptcp: rename mptcp_pm_nl_add_addr_send_ack 2021-03-26 15:05:15 -07:00
ncsi net/ncsi: Use real net-device for response handler 2020-12-23 12:22:23 -08:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-03-25 15:31:22 -07:00
netlabel cipso,calipso: resolve a number of problems with the DOI refcounts 2021-03-04 15:26:57 -08:00
netlink mptcp: avoid lock_fast usage in accept path 2021-02-12 16:31:46 -08:00
netrom treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
nfc TTY/Serial driver changes for 5.12-rc1 2021-02-20 21:28:04 -08:00
nsh treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
openvswitch Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-03-25 15:31:22 -07:00
packet net/packet: Fix a typo in af_packet.c 2021-03-24 17:52:11 -07:00
phonet treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
psample psample: Add additional metadata attributes 2021-03-14 15:00:43 -07:00
qrtr net: qrtr: fix a kernel-infoleak in qrtr_recvmsg() 2021-03-14 14:28:22 -07:00
rds net/rds: Drop duplicate sin and sin6 assignments 2021-03-10 12:45:15 -08:00
rfkill rfkill: add a reason to the HW rfkill state 2020-12-11 12:47:17 +01:00
rose net: rose: Fix fall-through warnings for Clang 2021-03-10 12:45:15 -08:00
rxrpc rxrpc: Fix dependency on IPv6 in udp tunnel config 2021-02-12 16:42:05 -08:00
sched Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-03-25 15:31:22 -07:00
sctp sctp: move sk_route_caps check and set into sctp_outq_flush_transports 2021-03-19 11:34:49 -07:00
smc net/smc: use memcpy instead of snprintf to avoid out of bounds read 2021-01-12 20:22:01 -08:00
strparser
sunrpc Miscellaneous NFSD fixes for v5.12-rc. 2021-03-16 10:22:50 -07:00
switchdev net: bridge: propagate extack through switchdev_port_attr_set 2021-02-14 17:38:11 -08:00
tipc tipc: add extack messages for bearer/media failure 2021-03-25 16:54:45 -07:00
tls net/tls: Fix a typo in tls_device.c 2021-03-24 17:52:11 -07:00
unix af_unix: handle idmapped mounts 2021-01-24 14:27:18 +01:00
vmw_vsock selinux: vsock: Set SID for socket returned by accept() 2021-03-19 13:46:55 -07:00
wireless wireless/nl80211: fix wdev_id may be used uninitialized 2021-03-16 21:20:47 +01:00
x25 net: x25: Remove unimplemented X.25-over-LLC code stubs 2020-12-12 17:15:33 -08:00
xdp bpf, xdp: Restructure redirect actions 2021-03-10 01:06:34 +01:00
xfrm Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2021-02-09 11:23:41 -08:00
compat.c iov_iter: transparently handle compat iovecs in import_iovec 2020-10-03 00:02:13 -04:00
devres.c net: devres: rename the release callback of devm_register_netdev() 2020-06-30 15:57:34 -07:00
Kconfig net: add CONFIG_PCPU_DEV_REFCNT 2021-03-19 13:38:46 -07:00
Makefile net: l3mdev: use obj-$(CONFIG_NET_L3_MASTER_DEV) form in net/Makefile 2021-01-27 17:03:52 -08:00
socket.c net: Fix a misspell in socket.c 2021-03-25 16:56:27 -07:00
sysctl_net.c