linux/include/net
Abel Wu 2d0c88e84e sock: Fix misuse of sk_under_memory_pressure()
The status of global socket memory pressure is updated when:

  a) __sk_mem_raise_allocated():

	enter: sk_memory_allocated(sk) >  sysctl_mem[1]
	leave: sk_memory_allocated(sk) <= sysctl_mem[0]

  b) __sk_mem_reduce_allocated():

	leave: sk_under_memory_pressure(sk) &&
		sk_memory_allocated(sk) < sysctl_mem[0]

So the conditions of leaving global pressure are inconstant, which
may lead to the situation that one pressured net-memcg prevents the
global pressure from being cleared when there is indeed no global
pressure, thus the global constrains are still in effect unexpectedly
on the other sockets.

This patch fixes this by ignoring the net-memcg's pressure when
deciding whether should leave global memory pressure.

Fixes: e1aab161e0 ("socket: initial cgroup code.")
Signed-off-by: Abel Wu <wuyun.abel@bytedance.com>
Acked-by: Shakeel Butt <shakeelb@google.com>
Link: https://lore.kernel.org/r/20230816091226.1542-1-wuyun.abel@bytedance.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-17 11:34:36 -07:00
..
9p
bluetooth Bluetooth: coredump: fix building with coredump disabled 2023-07-20 11:25:24 -07:00
caif
iucv
mana
netfilter netfilter: nf_tables: fix kdoc warnings after gc rework 2023-08-16 00:05:14 +02:00
netns
nfc
phonet
sctp
tc_act
6lowpan.h
Space.h
act_api.h
addrconf.h
af_ieee802154.h
af_rxrpc.h
af_unix.h
af_vsock.h
ah.h
amt.h
arp.h
atmclip.h
ax25.h
ax88796.h
bareudp.h
bond_3ad.h
bond_alb.h
bond_options.h
bonding.h net: bonding: remove kernel-doc comment marker 2023-07-14 20:39:29 -07:00
bpf_sk_storage.h
busy_poll.h
calipso.h
cfg80211-wext.h
cfg80211.h wifi: cfg80211: fix sband iftype data lookup for AP_VLAN 2023-08-08 13:01:19 +02:00
cfg802154.h net: cfg802154: fix kernel-doc notation warnings 2023-07-14 20:39:29 -07:00
checksum.h
cipso_ipv4.h
cls_cgroup.h
codel.h codel: fix kernel-doc notation warnings 2023-07-14 20:39:29 -07:00
codel_impl.h
codel_qdisc.h
compat.h
datalink.h
dcbevent.h
dcbnl.h
devlink.h devlink: fix kernel-doc notation warnings 2023-07-14 20:39:29 -07:00
dropreason-core.h
dropreason.h
dsa.h
dsa_stubs.h
dsfield.h
dst.h
dst_cache.h
dst_metadata.h
dst_ops.h
erspan.h
esp.h
espintcp.h
ethoc.h
failover.h
fib_notifier.h
fib_rules.h
firewire.h
flow.h
flow_dissector.h
flow_offload.h
fou.h
fq.h
fq_impl.h
garp.h
gen_stats.h
genetlink.h
geneve.h
gre.h
gro.h net: gro: fix misuse of CB in udp socket lookup 2023-07-29 17:10:27 +01:00
gro_cells.h
gso.h
gtp.h
gue.h
handshake.h
hwbm.h
icmp.h
ieee80211_radiotap.h
ieee802154_netdev.h
if_inet6.h
ife.h
ila.h
inet6_connection_sock.h
inet6_hashtables.h
inet_common.h
inet_connection_sock.h
inet_dscp.h
inet_ecn.h
inet_frag.h inet: frags: eliminate kernel-doc warning 2023-07-14 20:39:29 -07:00
inet_hashtables.h
inet_sock.h net: annotate data-races around sk->sk_mark 2023-07-29 18:13:41 +01:00
inet_timewait_sock.h
inetpeer.h
ioam6.h
ip.h net: annotate data-races around sk->sk_mark 2023-07-29 18:13:41 +01:00
ip6_checksum.h
ip6_fib.h
ip6_route.h
ip6_tunnel.h
ip_fib.h
ip_tunnels.h
ip_vs.h
ipcomp.h
ipconfig.h
ipv6.h tcp: Reduce chance of collisions in inet6_hashfn(). 2023-07-24 16:52:37 -07:00
ipv6_frag.h
ipv6_stubs.h
iw_handler.h
kcm.h
l3mdev.h
lag.h
lapb.h
lib80211.h
llc.h
llc_c_ac.h
llc_c_ev.h
llc_c_st.h
llc_conn.h llc: Check netns in llc_estab_match() and llc_listener_match(). 2023-07-20 10:46:28 +02:00
llc_if.h
llc_pdu.h net: llc: fix kernel-doc notation warnings 2023-07-14 20:39:29 -07:00
llc_s_ac.h
llc_s_ev.h
llc_s_st.h
llc_sap.h
lwtunnel.h
mac80211.h
mac802154.h
macsec.h
mctp.h
mctpdevice.h
mip6.h
mld.h
mpls.h
mpls_iptunnel.h
mptcp.h
mrp.h
ncsi.h
ndisc.h
neighbour.h
net_debug.h
net_failover.h
net_namespace.h
net_ratelimit.h
net_trackers.h
netdev_queues.h
netevent.h
netlabel.h
netlink.h
netprio_cgroup.h
netrom.h
nexthop.h
nl802154.h
nsh.h net: NSH: fix kernel-doc notation warning 2023-07-14 20:39:29 -07:00
p8022.h
page_pool.h
pie.h pie: fix kernel-doc notation warning 2023-07-14 20:39:30 -07:00
ping.h
pkt_cls.h
pkt_sched.h net/sched: make psched_mtu() RTNL-less safe 2023-07-12 15:59:33 -07:00
pptp.h
protocol.h
psample.h
psnap.h
raw.h
rawv6.h
red.h
regulatory.h
request_sock.h
rose.h
route.h net: annotate data-races around sk->sk_mark 2023-07-29 18:13:41 +01:00
rpl.h
rsi_91x.h rsi: remove kernel-doc comment marker 2023-07-14 20:39:30 -07:00
rtnetlink.h
rtnh.h
sch_generic.h
scm.h
secure_seq.h
seg6.h
seg6_hmac.h
seg6_local.h
selftests.h
slhc_vj.h
smc.h
snmp.h
sock.h sock: Fix misuse of sk_under_memory_pressure() 2023-08-17 11:34:36 -07:00
sock_reuseport.h
stp.h
strparser.h
switchdev.h
tc_wrapper.h
tcp.h tcp: annotate data-races around tp->notsent_lowat 2023-07-20 12:34:18 -07:00
tcp_states.h
timewait_sock.h
tipc.h
tls.h
tls_toe.h
transp_v6.h
tso.h
tun_proto.h
udp.h
udp_tunnel.h
udplite.h
vsock_addr.h
vxlan.h vxlan: Fix nexthop hash size 2023-08-02 10:58:26 +01:00
wext.h
x25.h
x25device.h
xdp.h
xdp_priv.h
xdp_sock.h
xdp_sock_drv.h
xfrm.h xfrm: don't skip free of empty state in acquire policy 2023-08-01 12:04:43 +02:00
xsk_buff_pool.h