Eric Dumazet 2085d88663 net: gro: do not keep too many GRO packets in napi->rx_list ... commit 8dc1c444df193701910f5e80b5d4caaf705a8fb0 upstream. Commit c80794323e82 ("net: Fix packet reordering caused by GRO and listified RX cooperation") had the unfortunate effect of adding latencies in common workloads. Before the patch, GRO packets were immediately passed to upper stacks. After the patch, we can accumulate quite a lot of GRO packets (depdending on NAPI budget). My fix is counting in napi->rx_count number of segments instead of number of logical packets. Fixes: c80794323e82 ("net: Fix packet reordering caused by GRO and listified RX cooperation") Signed-off-by: Eric Dumazet <edumazet@google.com> Bisected-by: John Sperbeck <jsperbeck@google.com> Tested-by: Jian Yang <jianyang@google.com> Cc: Maxim Mikityanskiy <maximmi@mellanox.com> Reviewed-by: Saeed Mahameed <saeedm@nvidia.com> Reviewed-by: Edward Cree <ecree.xilinx@gmail.com> Reviewed-by: Alexander Lobakin <alobakin@pm.me> Link: https://lore.kernel.org/r/20210204213146.4192368-1-eric.dumazet@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-02-17 10:35:19 +01:00
..
bpf_sk_storage.c	bpf: Improve bucket_log calculation logic	2020-02-14 16:34:10 -05:00
datagram.c	udp: fix skb_copy_and_csum_datagram with odd segment sizes	2021-02-17 10:35:19 +01:00
datagram.h	net/core: Allow the compiler to verify declaration and definition consistency	2019-03-27 13:49:44 -07:00
dev_addr_lists.c	net: remove unnecessary variables and callback	2019-10-24 14:53:49 -07:00
dev_ioctl.c	net/core: Document all dev_ioctl() arguments	2019-03-27 13:49:43 -07:00
dev.c	net: gro: do not keep too many GRO packets in napi->rx_list	2021-02-17 10:35:19 +01:00
devlink.c	devlink: Hold rtnl lock while reading netdev attributes	2020-12-08 10:40:23 +01:00
drop_monitor.c	drop_monitor: work around gcc-10 stringop-overflow warning	2020-05-20 08:20:06 +02:00
dst_cache.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
dst.c	net: print proper warning on dst underflow	2019-09-26 09:05:56 +02:00
ethtool.c	net: Zeroing the structure ethtool_wolinfo in ethtool_get_wol()	2019-10-26 11:20:10 -07:00
failover.c	failover: allow name change on IFF_UP slave interfaces	2019-04-10 22:12:26 -07:00
fib_notifier.c	net: fib_notifier: move fib_notifier_ops from struct net into per-net struct	2019-09-07 17:28:22 +02:00
fib_rules.c	net: fib_rules: Correctly set table field when table number exceeds 8 bits	2020-03-05 16:43:31 +01:00
filter.c	net, sctp, filter: remap copy_from_user failure error	2021-01-23 15:58:00 +01:00
flow_dissector.c	flow_dissector: Drop BPF flow dissector prog ref on netns cleanup	2020-05-27 17:46:49 +02:00
flow_offload.c	net: core: rename indirect block ingress cb function	2019-12-18 16:08:47 +01:00
gen_estimator.c	net_sched: gen_estimator: support large ewma log	2021-02-07 15:35:47 +01:00
gen_stats.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
gro_cells.c	gro_cells: make sure device is up in gro_cells_receive()	2019-03-10 11:07:14 -07:00
hwbm.c	net: hwbm: Make the hwbm_pool lock a mutex	2019-06-09 19:40:10 -07:00
link_watch.c	net: link_watch: prevent starvation when processing linkwatch wq	2019-07-01 19:02:47 -07:00
lwt_bpf.c	lwt: Disable BH too in run_lwt_bpf()	2020-12-30 11:51:30 +01:00
lwtunnel.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
Makefile	bpf: Introduce bpf sk local storage	2019-04-27 09:07:04 -07:00
neighbour.c	neighbour: Prevent a dead entry from updating gc_list	2021-02-10 09:25:32 +01:00
net_namespace.c	netns: fix GFP flags in rtnl_net_notifyid()	2019-10-25 20:14:42 -07:00
net-procfs.c	treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively	2019-04-09 14:19:06 +02:00
net-sysfs.c	net-sysfs: take the rtnl lock when accessing xps_rxqs_map and num_tc	2021-01-12 20:16:13 +01:00
net-sysfs.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
net-traces.c	page_pool: add tracepoints for page_pool with details need by XDP	2019-06-19 11:23:13 -04:00
netclassid_cgroup.c	cgroup, netclassid: remove double cond_resched	2020-05-10 10:31:32 +02:00
netevent.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
netpoll.c	net: Have netpoll bring-up DSA management interface	2020-11-24 13:28:57 +01:00
netprio_cgroup.c	netprio_cgroup: Fix unlimited memory leak of v2 cgroups	2020-05-20 08:20:12 +02:00
page_pool.c	page_pool: do not release pool until inflight == 0.	2019-12-18 16:09:07 +01:00
pktgen.c	net: Fix CONFIG_NET_CLS_ACT=n and CONFIG_NFT_FWD_NETDEV={y, m} build	2020-04-01 11:02:18 +02:00
ptp_classifier.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295	2019-06-05 17:36:38 +02:00
request_sock.c	tcp: add rcu protection around tp->fastopen_rsk	2019-10-13 10:13:08 -07:00
rtnetlink.c	rtnetlink: Fix memory(net_device) leak when ->newlink fails	2020-07-31 18:39:30 +02:00
scm.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
secure_seq.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
skbuff.c	skbuff: back tiny skbs with kmalloc() in __netdev_alloc_skb() too	2021-01-27 11:47:53 +01:00
skmsg.c	bpf, sockmap: Avoid returning unneeded EAGAIN when redirecting to self	2020-11-24 13:29:19 +01:00
sock_diag.c	sock: make cookie generation global instead of per netns	2019-08-09 13:14:46 -07:00
sock_map.c	bpf: sockmap: Require attach_bpf_fd when detaching a program	2020-08-07 09:34:02 +02:00
sock_reuseport.c	udp: Prevent reuseport_select_sock from reading uninitialized socks	2021-01-23 15:57:56 +01:00
sock.c	socket: don't clear SOCK_TSTAMP_NEW when SO_TIMESTAMPNS is disabled	2020-11-01 12:01:01 +01:00
stream.c	tcp: make sure EPOLLOUT wont be missed	2019-08-19 13:07:43 -07:00
sysctl_net_core.c	bpf: Check correct cred for CAP_SYSLOG in bpf_dump_raw_ok()	2020-07-16 08:16:45 +02:00
timestamping.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61	2019-05-24 17:36:45 +02:00
tso.c	net: Use skb accessors in network core	2019-07-22 20:47:56 -07:00
utils.c	net: Fix skb->csum update in inet_proto_csum_replace16().	2020-02-05 21:22:52 +00:00
xdp.c	xdp: obtain the mem_id mutex before trying to remove an entry.	2019-12-18 16:09:10 +01:00