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503978aca4
linux/net
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Eric Dumazet 503978aca4 net: avoid possible false sharing in sk_leave_memory_pressure() 
As mentioned in https://github.com/google/ktsan/wiki/READ_ONCE-and-WRITE_ONCE#it-may-improve-performance
a C compiler can legally transform :

if (memory_pressure && *memory_pressure)
        *memory_pressure = 0;

to :

if (memory_pressure)
        *memory_pressure = 0;

Fixes: 0604475119 ("tcp: add TCPMemoryPressuresChrono counter")
Fixes: 180d8cd942 ("foundations of per-cgroup memory pressure controlling.")
Fixes: 3ab224be6d ("[NET] CORE: Introducing new memory accounting interface.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09 21:30:22 -07:00
..
6lowpan
9p 9p pull request for inclusion in 5.4 2019-09-27 15:10:34 -07:00
802
8021q
appletalk appletalk: enforce CAP_NET_RAW for raw sockets 2019-09-24 16:37:18 +02:00
atm pppoatm: use %*ph to print small buffer 2019-09-05 12:33:28 +02:00
ax25 ax25: enforce CAP_NET_RAW for raw sockets 2019-09-24 16:37:18 +02:00
batman-adv netfilter: drop bridge nf reset from nf_reset 2019-10-01 18:42:15 +02:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2019-09-18 12:34:53 -07:00
bpf
bpfilter
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-09-15 14:17:27 +02:00
caif
can can: add support of SAE J1939 protocol 2019-09-04 14:22:33 +02:00
ceph libceph: use ceph_kvmalloc() for osdmap arrays 2019-09-16 12:06:25 +02:00
core net: avoid possible false sharing in sk_leave_memory_pressure() 2019-10-09 21:30:22 -07:00
dcb
dccp netfilter: drop bridge nf reset from nf_reset 2019-10-01 18:42:15 +02:00
decnet
dns_resolver
dsa net: dsa: sja1105: Fix sleeping while atomic in .port_hwtstamp_set 2019-10-02 12:19:53 -04:00
ethernet
hsr
ieee802154 ieee802154: enforce CAP_NET_RAW for raw sockets 2019-09-24 16:37:18 +02:00
ife net: Fix Kconfig indentation 2019-09-26 08:56:17 +02:00
ipv4 net: ipv4: avoid mixed n_redirects and rate_tokens usage 2019-10-04 17:27:04 -07:00
ipv6 ip6erspan: remove the incorrect mtu limit for ip6erspan 2019-10-08 19:46:42 -07:00
iucv
kcm kcm: disable preemption in kcm_parse_func_strparser() 2019-09-27 10:27:14 +02:00
key
l2tp netfilter: drop bridge nf reset from nf_reset 2019-10-01 18:42:15 +02:00
l3mdev
lapb
llc llc: fix sk_buff refcounting in llc_conn_state_process() 2019-10-08 13:23:05 -07:00
mac80211 mac80211: fix scan when operating on DFS channels in ETSI domains 2019-10-07 22:10:50 +02:00
mac802154
mpls ipv4: mpls: fix mpls_xmit for iptunnel 2019-08-25 14:34:08 -07:00
ncsi net/ncsi: Disable global multicast filter 2019-09-19 18:04:40 -07:00
netfilter netfilter: conntrack: avoid possible false sharing 2019-10-09 21:22:06 -07:00
netlabel netlabel: remove redundant assignment to pointer iter 2019-09-01 11:45:02 -07:00
netlink
netrom
nfc nfc: fix memory leak in llcp_sock_bind() 2019-10-04 18:31:36 -07:00
nsh
openvswitch netfilter: drop bridge nf reset from nf_reset 2019-10-01 18:42:15 +02:00
packet netfilter: drop bridge nf reset from nf_reset 2019-10-01 18:42:15 +02:00
phonet
psample net: sched: take reference to psample group in flow_action infra 2019-09-16 09:18:03 +02:00
qrtr net: qrtr: Stop rx_worker before freeing node 2019-09-21 18:45:46 -07:00
rds net/rds: Fix error handling in rds_ib_add_one() 2019-10-02 12:16:57 -04:00
rfkill
rose
rxrpc rxrpc: Fix call crypto state cleanup 2019-10-07 11:05:05 +01:00
sched act_mirred: Fix mirred_init_module error handling 2019-10-09 19:19:35 -07:00
sctp sctp: add chunks to sk_backlog when the newsk sk_socket is not set 2019-10-09 16:27:04 -07:00
smc net/smc: make sure EPOLLOUT is raised 2019-08-20 12:25:14 -07:00
strparser
sunrpc Highlights: 2019-09-27 17:00:27 -07:00
switchdev
tipc tipc: fix unlimited bundling of small messages 2019-10-02 11:02:05 -04:00
tls net/tls: align non temporal copy to cache lines 2019-09-07 18:10:34 +02:00
unix
vmw_vsock vsock: Fix a lockdep warning in __vsock_release() 2019-10-01 21:23:35 -04:00
wimax wimax: no need to check return value of debugfs_create functions 2019-08-10 15:25:47 -07:00
wireless mac80211: fix scan when operating on DFS channels in ETSI domains 2019-10-07 22:10:50 +02:00
x25
xdp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-09-28 17:47:33 -07:00
xfrm netfilter: drop bridge nf reset from nf_reset 2019-10-01 18:42:15 +02:00
compat.c
Kconfig devlink: Add packet trap infrastructure 2019-08-17 12:40:08 -07:00
Makefile
socket.c
sysctl_net.c