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Nicolas Rybowski 3764b0c565 mptcp: attach subflow socket to parent cgroup 
It has been observed that the kernel sockets created for the subflows
(except the first one) are not in the same cgroup as their parents.
That's because the additional subflows are created by kernel workers.

This is a problem with eBPF programs attached to the parent's
cgroup won't be executed for the children. But also with any other features
of CGroup linked to a sk.

This patch fixes this behaviour.

As the subflow sockets are created by the kernel, we can't use
'mem_cgroup_sk_alloc' because of the current context being the one of the
kworker. This is why we have to do low level memcg manipulation, if
required.

Suggested-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Nicolas Rybowski <nicolas.rybowski@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-14 17:30:06 -08:00
..
6lowpan
9p net: 9p: Fix kerneldoc warnings of missing parameters etc 2020-11-02 12:25:52 -08:00
802
8021q
appletalk net: appletalk: fix kerneldoc warnings 2020-10-30 11:48:17 -07:00
atm atm: nicstar: Replace in_interrupt() usage 2020-11-18 16:43:55 -08:00
ax25
batman-adv batman-adv: Drop unused soft-interface.h include in fragmentation.c 2020-12-04 08:41:16 +01:00
bluetooth Bluetooth: Increment management interface revision 2020-12-07 17:02:00 +02:00
bpf
bpfilter
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2020-12-14 15:43:21 -08:00
caif
can Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-12-11 22:29:38 -08:00
ceph
core Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2020-12-14 15:34:36 -08:00
dcb net: dcb: Fix kerneldoc warnings 2020-10-30 11:59:54 -07:00
dccp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-11-27 18:25:27 -08:00
decnet treewide: rename nla_strlcpy to nla_strscpy. 2020-11-16 08:08:54 -08:00
dns_resolver
dsa net: dsa: print the MTU value that could not be set 2020-12-08 11:24:07 -08:00
ethernet net: datagram: fix some kernel-doc markups 2020-11-17 14:15:03 -08:00
ethtool Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-12-11 22:29:38 -08:00
hsr
ieee802154 treewide: rename nla_strlcpy to nla_strscpy. 2020-11-16 08:08:54 -08:00
ife
ipv4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2020-12-14 15:43:21 -08:00
ipv6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2020-12-14 15:43:21 -08:00
iucv net/af_iucv: use DECLARE_SOCKADDR to cast from sockaddr 2020-12-08 15:56:53 -08:00
kcm
key
l2tp
l3mdev net: l3mdev: Fix kerneldoc warning 2020-10-30 11:43:42 -07:00
lapb net/lapb: fix t1 timer handling for LAPB_STATE_0 2020-11-27 17:22:51 -08:00
llc net: llc: Fix kerneldoc warnings 2020-10-30 11:34:09 -07:00
mac80211 A new set of wireless changes: 2020-12-12 10:07:56 -08:00
mac802154 net: mac802154: convert tasklets to use new tasklet_setup() API 2020-11-07 10:40:56 -08:00
mpls mpls: drop skb's dst in mpls_forward() 2020-11-03 12:55:53 -08:00
mptcp mptcp: attach subflow socket to parent cgroup 2020-12-14 17:30:06 -08:00
ncsi net/ncsi: Fix netlink registration 2020-11-12 17:00:13 -08:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2020-12-14 15:43:21 -08:00
netlabel Merge https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-11-19 19:08:46 -08:00
netlink
netrom
nfc net: sched: fix spelling mistake in Kconfig "trys" -> "tries" 2020-12-08 16:01:56 -08:00
nsh
openvswitch net: openvswitch: fix TTL decrement exception action execution 2020-12-14 17:18:25 -08:00
packet Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-11-27 18:25:27 -08:00
phonet
psample
qrtr wireless-drivers-next patches for v5.11 2020-12-04 10:56:37 -08:00
rds
rfkill rfkill: add a reason to the HW rfkill state 2020-12-11 12:47:17 +01:00
rose rose: Fix Null pointer dereference in rose_send_frame() 2020-11-20 10:04:58 -08:00
rxrpc net: rxrpc: convert comma to semicolon 2020-12-09 16:23:07 -08:00
sched Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-12-11 22:29:38 -08:00
sctp sctp: Fix some typo 2020-11-23 17:44:11 -08:00
smc net/smc: Add support for obtaining SMCR device list 2020-12-01 17:56:13 -08:00
strparser
sunrpc net: datagram: fix some kernel-doc markups 2020-11-17 14:15:03 -08:00
switchdev
tipc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-12-11 22:29:38 -08:00
tls net/tls: make sure tls offload sets salt_size 2020-12-01 17:51:30 -08:00
unix
vmw_vsock Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-11-27 18:25:27 -08:00
wireless A new set of wireless changes: 2020-12-12 10:07:56 -08:00
x25 net: x25: Remove unimplemented X.25-over-LLC code stubs 2020-12-12 17:15:33 -08:00
xdp Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2020-12-14 15:34:36 -08:00
xfrm Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2020-12-12 12:28:42 -08:00
compat.c
devres.c
Kconfig
Makefile
socket.c net: Remove the err argument from sock_from_file 2020-12-04 22:32:40 +01:00
sysctl_net.c