linux-stable/net/core
Judy Hsiao f379394a78 neighbour: Don't let neigh_forced_gc() disable preemption for long
[ Upstream commit e5dc5afff6 ]

We are seeing cases where neigh_cleanup_and_release() is called by
neigh_forced_gc() many times in a row with preemption turned off.
When running on a low powered CPU at a low CPU frequency, this has
been measured to keep preemption off for ~10 ms. That's not great on a
system with HZ=1000 which expects tasks to be able to schedule in
with ~1ms latency.

Suggested-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Judy Hsiao <judyhsiao@chromium.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-20 11:50:07 +01:00
..
bpf_sk_storage.c bpf: Add length check for SK_DIAG_BPF_STORAGE_REQ_MAP_FD parsing 2023-08-11 12:08:12 +02:00
datagram.c net: datagram: fix data-races in datagram_poll() 2023-05-24 17:32:32 +01:00
dev.c net: check dev->gso_max_size in gso_features_check() 2024-01-01 12:38:58 +00:00
dev.h net: check for altname conflicts when changing netdev's netns 2023-10-25 12:03:08 +02:00
dev_addr_lists.c net: extract a few internals from netdevice.h 2022-04-07 20:32:09 -07:00
dev_addr_lists_test.c
dev_ioctl.c net: rename reference+tracking helpers 2022-06-09 21:52:55 -07:00
drop_monitor.c drop_monitor: Require 'CAP_SYS_ADMIN' when joining "events" group 2023-12-13 18:39:12 +01:00
dst.c ipv6: remove max_size check inline with ipv4 2024-01-15 18:54:51 +01:00
dst_cache.c
failover.c net: rename reference+tracking helpers 2022-06-09 21:52:55 -07:00
fib_notifier.c
fib_rules.c
filter.c bpf: sockmap, updating the sg structure should also update curr 2023-12-13 18:39:11 +01:00
flow_dissector.c net/core: Fix ETH_P_1588 flow dissector 2023-10-06 14:56:36 +02:00
flow_offload.c flow_offload: Introduce flow_match_l2tpv3 2022-09-20 09:13:38 +02:00
gen_estimator.c
gen_stats.c net: sched: fix misuse of qcpu->backlog in gnet_stats_add_queue_cpu 2022-08-16 19:38:20 -07:00
gro.c skb: Do mix page pool and page referenced frags in GRO 2023-02-09 11:28:05 +01:00
gro_cells.c net: drop the weight argument from netif_napi_add 2022-09-28 18:57:14 -07:00
hwbm.c
link_watch.c net: rename reference+tracking helpers 2022-06-09 21:52:55 -07:00
lwt_bpf.c lwt: Fix return values of BPF xmit ops 2023-09-13 09:42:33 +02:00
lwtunnel.c xfrm: lwtunnel: squelch kernel warning in case XFRM encap type is not available 2022-10-12 10:45:51 +02:00
Makefile devlink: move code to a dedicated directory 2023-08-30 16:11:00 +02:00
neighbour.c neighbour: Don't let neigh_forced_gc() disable preemption for long 2024-01-20 11:50:07 +01:00
net-procfs.c net: extract a few internals from netdevice.h 2022-04-07 20:32:09 -07:00
net-sysfs.c net-sysfs: Convert to use sysfs_emit() APIs 2022-09-30 12:27:44 +01:00
net-sysfs.h
net-traces.c
net_namespace.c net: fix UaF in netns ops registration error path 2023-02-01 08:34:43 +01:00
netclassid_cgroup.c core: Variable type completion 2022-08-31 09:40:34 +01:00
netevent.c
netpoll.c net: don't let netpoll invoke NAPI if in xmit context 2023-04-13 16:55:21 +02:00
netprio_cgroup.c
of_net.c Revert "of: net: support NVMEM cells with MAC in text format" 2022-01-12 14:14:36 +00:00
page_pool.c net: page_pool: add missing free_percpu when page_pool_init fail 2023-11-20 11:52:16 +01:00
pktgen.c net: pktgen: Fix interface flags printing 2023-10-25 12:03:08 +02:00
ptp_classifier.c ptp: Add generic PTP is_sync() function 2022-03-07 11:31:34 +00:00
request_sock.c
rtnetlink.c netlink: Correct offload_xstats size 2023-10-25 12:03:07 +02:00
scm.c io_uring/af_unix: disable sending io_uring over sockets 2023-12-13 18:39:17 +01:00
secure_seq.c tcp: Fix data-races around sysctl knobs related to SYN option. 2022-07-20 10:14:49 +01:00
selftests.c
skbuff.c net: annotate data-races around sk->sk_tsflags 2024-01-10 17:10:23 +01:00
skmsg.c bpf, sockmap: af_unix stream sockets need to hold ref for pair sock 2024-01-10 17:10:32 +01:00
sock.c net: Implement missing SO_TIMESTAMPING_NEW cmsg support 2024-01-10 17:10:26 +01:00
sock_destructor.h
sock_diag.c net: Don't include filter.h from net/sock.h 2021-12-29 08:48:14 -08:00
sock_map.c bpf: syzkaller found null ptr deref in unix_bpf proto add 2024-01-10 17:10:36 +01:00
sock_reuseport.c soreuseport: Fix socket selection for SO_INCOMING_CPU. 2022-12-31 13:32:04 +01:00
stream.c net: Return error from sk_stream_wait_connect() if sk_wait_event() fails 2024-01-01 12:38:56 +00:00
sysctl_net_core.c net: sysctl: remove unused variable long_max 2022-09-07 15:31:19 +01:00
timestamping.c
tso.c
utils.c net: core: Use csum_replace_by_diff() and csum_sub() instead of opencoding 2022-02-21 11:40:44 +00:00
xdp.c xdp: improve page_pool xdp_return performance 2022-09-26 11:28:19 -07:00