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linux/net/ipv4
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Eric Dumazet 64bc17811b ipv4: speedup ipv6 tunnels dismantle 
Implement exit_batch() method to dismantle more devices
per round.

(rtnl_lock() ...
 unregister_netdevice_many() ...
 rtnl_unlock())

Tested:
$ cat add_del_unshare.sh
for i in `seq 1 40`
do
 (for j in `seq 1 100` ; do unshare -n /bin/true >/dev/null ; done) &
done
wait ; grep net_namespace /proc/slabinfo

Before patch :
$ time ./add_del_unshare.sh
net_namespace        126    282   5504    1    2 : tunables    8    4    0 : slabdata    126    282      0

real    1m38.965s
user    0m0.688s
sys     0m37.017s

After patch:
$ time ./add_del_unshare.sh
net_namespace        135    291   5504    1    2 : tunables    8    4    0 : slabdata    135    291      0

real	0m22.117s
user	0m0.728s
sys	0m35.328s

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-19 16:32:24 -07:00
..
netfilter
netfilter: xtables: add scheduling opportunity in get_counters
2017-09-08 18:55:27 +02:00
af_inet.c
net: Add comment that early_demux can change via sysctl
2017-08-28 15:17:29 -07:00
ah4.c
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
2017-06-23 14:17:31 -04:00
arp.c
neigh: increase queue_len_bytes to match wmem_default
2017-08-29 16:10:50 -07:00
cipso_ipv4.c
Cipso: cipso_v4_optptr enter infinite loop
2017-08-01 15:31:23 -07:00
datagram.c
…
devinet.c
rtnetlink: make rtnl_register accept a flags parameter
2017-08-09 16:57:38 -07:00
esp4_offload.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-09-01 17:42:05 -07:00
esp4.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-09-01 17:42:05 -07:00
fib_frontend.c
rtnetlink: make rtnl_register accept a flags parameter
2017-08-09 16:57:38 -07:00
fib_lookup.h
ipv4: do metrics match when looking up and deleting a route
2017-08-23 20:37:10 -07:00
fib_notifier.c
net: Add module reference to FIB notifiers
2017-09-01 20:33:42 -07:00
fib_rules.c
net: fib_rules: Implement notification logic in core
2017-08-03 15:35:59 -07:00
fib_semantics.c
ipv4: do metrics match when looking up and deleting a route
2017-08-23 20:37:10 -07:00
fib_trie.c
ipv4: do metrics match when looking up and deleting a route
2017-08-23 20:37:10 -07:00
fou.c
gue: fix remcsum when GRO on and CHECKSUM_PARTIAL boundary is outer UDP
2017-08-01 16:09:14 -07:00
gre_demux.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-06-30 05:03:36 -04:00
gre_offload.c
net: Remove all references to SKB_GSO_UDP.
2017-07-17 09:52:58 -07:00
icmp.c
ip/options: explicitly provide net ns to __ip_options_echo()
2017-08-06 20:51:12 -07:00
igmp.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-08-21 17:06:42 -07:00
inet_connection_sock.c
net: Convert int functions to bool
2017-09-18 11:40:03 -07:00
inet_diag.c
inet_diag: allow protocols to provide additional data
2017-09-01 18:38:09 -07:00
inet_fragment.c
Revert "net: use lib/percpu_counter API for fragmentation mem accounting"
2017-09-03 11:01:05 -07:00
inet_hashtables.c
net: ipv4: add second dif to inet socket lookups
2017-08-07 11:39:21 -07:00
inet_timewait_sock.c
net: convert sock.sk_refcnt from atomic_t to refcount_t
2017-07-01 07:39:08 -07:00
inetpeer.c
inetpeer: fix RCU lookup()
2017-09-01 17:33:17 -07:00
ip_forward.c
ipv4: allow local fragmentation in ip_finish_output_gso()
2016-11-03 16:10:26 -04:00
ip_fragment.c
Revert "net: fix percpu memory leaks"
2017-09-03 11:01:05 -07:00
ip_gre.c
ipv4: speedup ipv6 tunnels dismantle
2017-09-19 16:32:24 -07:00
ip_input.c
net: Add sysctl to toggle early demux for tcp and udp
2017-03-24 13:17:07 -07:00
ip_options.c
ip/options: explicitly provide net ns to __ip_options_echo()
2017-08-06 20:51:12 -07:00
ip_output.c
udp: remove unreachable ufo branches
2017-08-22 14:27:18 -07:00
ip_sockglue.c
net: ipv4: fix l3slave check for index returned in IP_PKTINFO
2017-09-15 14:27:51 -07:00
ip_tunnel_core.c
net: store port/representator id in metadata_dst
2017-06-25 11:42:01 -04:00
ip_tunnel.c
ipv4: speedup ipv6 tunnels dismantle
2017-09-19 16:32:24 -07:00
ip_vti.c
ipv4: speedup ipv6 tunnels dismantle
2017-09-19 16:32:24 -07:00
ipcomp.c
…
ipconfig.c
networking: convert many more places to skb_put_zero()
2017-06-16 11:48:35 -04:00
ipip.c
ipv4: speedup ipv6 tunnels dismantle
2017-09-19 16:32:24 -07:00
ipmr.c
rtnetlink: make rtnl_register accept a flags parameter
2017-08-09 16:57:38 -07:00
Kconfig
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
2017-02-16 21:25:49 -05:00
Makefile
tcp: ULP infrastructure
2017-06-15 12:12:40 -04:00
netfilter.c
netfilter: use skb_to_full_sk in ip_route_me_harder
2017-02-28 12:49:36 +01:00
ping.c
net: convert sock.sk_refcnt from atomic_t to refcount_t
2017-07-01 07:39:08 -07:00
proc.c
tcp: Revert "tcp: remove header prediction"
2017-08-30 11:20:09 -07:00
protocol.c
net: Add sysctl to toggle early demux for tcp and udp
2017-03-24 13:17:07 -07:00
raw_diag.c
net: ipv6: add second dif to raw socket lookups
2017-08-07 11:39:22 -07:00
raw.c
net: ipv4: add second dif to multicast source filter
2017-08-07 11:39:22 -07:00
route.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-08-21 17:06:42 -07:00
syncookies.c
ip/options: explicitly provide net ns to __ip_options_echo()
2017-08-06 20:51:12 -07:00
sysctl_net_ipv4.c
tcp: remove low_latency sysctl
2017-07-31 14:37:49 -07:00
tcp_bbr.c
tcp_bbr: init pacing rate on first RTT sample
2017-07-15 14:43:29 -07:00
tcp_bic.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_cdg.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_cong.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-09-01 17:42:05 -07:00
tcp_cubic.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_dctcp.c
Revert "dctcp: update cwnd on congestion event"
2016-12-06 11:34:24 -05:00
tcp_diag.c
tcp_diag: report TCP MD5 signing keys and addresses
2017-09-01 18:38:09 -07:00
tcp_fastopen.c
tcp: Remove the unused parameter for tcp_try_fastopen.
2017-08-22 14:16:12 -07:00
tcp_highspeed.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_htcp.c
tcp: fix cwnd undo in Reno and HTCP congestion controls
2017-08-06 21:25:10 -07:00
tcp_hybla.c
tcp: make undo_cwnd mandatory for congestion modules
2016-11-21 13:20:17 -05:00
tcp_illinois.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_input.c
net: sk_buff rbnode reorg
2017-09-19 15:20:22 -07:00
tcp_ipv4.c
tcp: fix a request socket leak
2017-09-08 16:07:17 -07:00
tcp_lp.c
tcp: switch TCP TS option (RFC 7323) to 1ms clock
2017-05-17 16:06:01 -04:00
tcp_metrics.c
tcp: batch tcp_net_metrics_exit
2017-09-19 16:32:23 -07:00
tcp_minisocks.c
tcp: Revert "tcp: remove header prediction"
2017-08-30 11:20:09 -07:00
tcp_nv.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_offload.c
net: convert sock.sk_wmem_alloc from atomic_t to refcount_t
2017-07-01 07:39:08 -07:00
tcp_output.c
tcp: fix data delivery rate
2017-09-16 09:07:01 -07:00
tcp_probe.c
tcp: remove redundant argument from tcp_rcv_established()
2017-07-24 17:28:12 -07:00
tcp_rate.c
tcp: export do_tcp_sendpages and tcp_rate_check_app_limited functions
2017-06-15 12:12:40 -04:00
tcp_recovery.c
tcp: adjust tail loss probe timeout
2017-07-19 16:14:10 -07:00
tcp_scalable.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_timer.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-08-09 16:28:45 -07:00
tcp_ulp.c
tcp: ulp: avoid module refcnt leak in tcp_set_ulp
2017-08-14 22:17:05 -07:00
tcp_vegas.c
tcp: make undo_cwnd mandatory for congestion modules
2016-11-21 13:20:17 -05:00
tcp_vegas.h
…
tcp_veno.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_westwood.c
tcp: Revert "tcp: remove CA_ACK_SLOWPATH"
2017-08-30 11:20:08 -07:00
tcp_yeah.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp.c
net: prepare (struct ubuf_info)->refcnt conversion
2017-09-01 20:22:03 -07:00
tunnel4.c
tunnels: correct conditional build of MPLS and IPv6
2016-07-11 13:27:06 -07:00
udp_diag.c
net: ipv6: add second dif to udp socket lookups
2017-08-07 11:39:22 -07:00
udp_impl.h
udp: make *udp*_queue_rcv_skb() functions static
2017-05-18 10:23:33 -04:00
udp_offload.c
net: avoid skb_warn_bad_offload false positives on UFO
2017-08-08 21:39:01 -07:00
udp_tunnel.c
net: add infrastructure to un-offload UDP tunnel port
2017-07-24 13:52:59 -07:00
udp.c
udp: drop head states only when all skb references are gone
2017-09-07 20:02:39 -07:00
udplite.c
udplite: call proper backlog handlers
2016-11-24 15:32:14 -05:00
xfrm4_input.c
esp: Add a software GRO codepath
2017-02-15 11:04:11 +01:00
xfrm4_mode_beet.c
networking: make skb_pull & friends return void pointers
2017-06-16 11:48:39 -04:00
xfrm4_mode_transport.c
xfrm: Add encapsulation header offsets while SKB is not encrypted
2017-04-14 10:07:39 +02:00
xfrm4_mode_tunnel.c
xfrm: Add encapsulation header offsets while SKB is not encrypted
2017-04-14 10:07:39 +02:00
xfrm4_output.c
xfrm: Add an IPsec hardware offloading API
2017-04-14 10:06:10 +02:00
xfrm4_policy.c
net: xfrm: support setting an output mark.
2017-08-11 07:03:00 +02:00
xfrm4_protocol.c
xfrm: input: constify xfrm_input_afinfo
2017-02-09 10:22:17 +01:00
xfrm4_state.c
xfrm: remove unused function
2017-01-10 10:57:12 +01:00
xfrm4_tunnel.c
…