Florian Westphal ec30d78c14 xfrm: add xdst pcpu cache ... retain last used xfrm_dst in a pcpu cache. On next request, reuse this dst if the policies are the same. The cache will not help with strict RR workloads as there is no hit. The cache packet-path part is reasonably small, the notifier part is needed so we do not add long hangs when a device is dismantled but some pcpu xdst still holds a reference, there are also calls to the flush operation when userspace deletes SAs so modules can be removed (there is no hit. We need to run the dst_release on the correct cpu to avoid races with packet path. This is done by adding a work_struct for each cpu and then doing the actual test/release on each affected cpu via schedule_work_on(). Test results using 4 network namespaces and null encryption: ns1 ns2 -> ns3 -> ns4 netperf -> xfrm/null enc -> xfrm/null dec -> netserver what TCP_STREAM UDP_STREAM UDP_RR Flow cache: 14644.61 294.35 327231.64 No flow cache: 14349.81 242.64 202301.72 Pcpu cache: 14629.70 292.21 205595.22 UDP tests used 64byte packets, tests ran for one minute each, value is average over ten iterations. 'Flow cache' is 'net-next', 'No flow cache' is net-next plus this series but without this patch. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>		2017-07-18 11:13:41 -07:00
..
6lowpan	6lowpan: Don't set IFF_NO_QUEUE	2017-04-12 22:02:40 +02:00
9p	sched/wait: Rename wait_queue_t => wait_queue_entry_t	2017-06-20 12:18:27 +02:00
802	net: introduce __skb_put_[zero, data, u8]	2017-06-20 13:30:14 -04:00
8021q	net: add netlink_ext_ack argument to rtnl_link_ops.validate	2017-06-26 23:13:22 -04:00
appletalk	networking: make skb_push & __skb_push return void pointers	2017-06-16 11:48:40 -04:00
atm	net, atm: convert eg_cache_entry.use from atomic_t to refcount_t	2017-07-04 22:35:16 +01:00
ax25	net, ax25: convert ax25_cb.refcount from atomic_t to refcount_t	2017-07-04 22:35:19 +01:00
batman-adv	networking: make skb_put & friends return void pointers	2017-06-16 11:48:39 -04:00
bluetooth	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2017-07-05 12:31:59 -07:00
bpf	bpf: Align packet data properly in program testing framework.	2017-05-02 11:46:28 -04:00
bridge	bridge: mdb: fix leak on complete_info ptr on fail path	2017-07-11 20:01:39 -07:00
caif	net: convert sock.sk_wmem_alloc from atomic_t to refcount_t	2017-07-01 07:39:08 -07:00
can	networking: introduce and use skb_put_data()	2017-06-16 11:48:37 -04:00
ceph	libceph: osd_state is 32 bits wide in luminous	2017-07-07 17:25:19 +02:00
core	xfrm: remove flow cache	2017-07-18 11:13:41 -07:00
dcb	dcb: enforce minimum length on IEEE_APPS attribute	2017-05-21 13:42:33 -04:00
dccp	net: convert sk_buff.users from atomic_t to refcount_t	2017-07-01 07:39:07 -07:00
decnet	net, decnet: convert dn_fib_info.fib_clntref from atomic_t to refcount_t	2017-07-04 22:35:15 +01:00
dns_resolver	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
dsa	net: manual clean code which call skb_put_[data:zero]	2017-06-20 13:30:15 -04:00
ethernet	networking: make skb_push & __skb_push return void pointers	2017-06-16 11:48:40 -04:00
hsr	net: add netlink_ext_ack argument to rtnl_link_ops.newlink	2017-06-26 23:13:21 -04:00
ieee802154	net: add netlink_ext_ack argument to rtnl_link_ops.validate	2017-06-26 23:13:22 -04:00
ife	net: Introduce ife encapsulation module	2017-02-03 15:16:45 -05:00
ipv4	xfrm: remove flow cache	2017-07-18 11:13:41 -07:00
ipv6	xfrm: remove flow cache	2017-07-18 11:13:41 -07:00
ipx	net, ipx: convert ipx_route.refcnt from atomic_t to refcount_t	2017-07-04 22:35:17 +01:00
irda	Merge branch 'work.memdup_user' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-05 16:05:24 -07:00
iucv	iucv: Convert sk_wmem_alloc accesses to refcount_t.	2017-07-03 02:31:22 -07:00
kcm	net: convert sock.sk_wmem_alloc from atomic_t to refcount_t	2017-07-01 07:39:08 -07:00
key	xfrm: remove flow cache	2017-07-18 11:13:41 -07:00
l2tp	net, l2tp: convert l2tp_session.ref_count from atomic_t to refcount_t	2017-07-04 22:35:15 +01:00
l3mdev
lapb	net, lapb: convert lapb_cb.refcnt from atomic_t to refcount_t	2017-07-04 22:35:16 +01:00
llc	net, llc: convert llc_sap.refcnt from atomic_t to refcount_t	2017-07-04 22:35:15 +01:00
mac80211	net: manual clean code which call skb_put_[data:zero]	2017-06-20 13:30:15 -04:00
mac802154	net: Fix inconsistent teardown and release of private netdev state.	2017-06-07 15:53:24 -04:00
mpls	mpls: fix uninitialized in_label var warning in mpls_getroute	2017-07-08 11:26:41 +01:00
ncsi	networking: make skb_push & __skb_push return void pointers	2017-06-16 11:48:40 -04:00
netfilter	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf	2017-07-06 14:02:22 +01:00
netlabel	netlink: pass extended ACK struct to parsing functions	2017-04-13 13:58:22 -04:00
netlink	net: convert sock.sk_refcnt from atomic_t to refcount_t	2017-07-01 07:39:08 -07:00
netrom	net, netrom: convert nr_node.refcount from atomic_t to refcount_t	2017-07-04 22:35:17 +01:00
nfc	NFC: Add sockaddr length checks before accessing sa_family in bind handlers	2017-06-23 00:38:31 +02:00
openvswitch	net: Remove all references to SKB_GSO_UDP.	2017-07-17 09:52:58 -07:00
packet	net: convert packet_fanout.sk_ref from atomic_t to refcount_t	2017-07-01 07:39:09 -07:00
phonet	net: convert sock.sk_refcnt from atomic_t to refcount_t	2017-07-01 07:39:08 -07:00
psample	networking: make skb_put & friends return void pointers	2017-06-16 11:48:39 -04:00
qrtr	networking: make skb_put & friends return void pointers	2017-06-16 11:48:39 -04:00
rds	rds: cancel send/recv work before queuing connection shutdown	2017-07-16 19:07:35 -07:00
rfkill	net: rfkill: gpio: Switch to devm_acpi_dev_add_driver_gpios()	2017-06-13 11:07:51 +02:00
rose	net: Work around lockdep limitation in sockets that use sockets	2017-03-09 18:23:27 -08:00
rxrpc	net: convert sock.sk_refcnt from atomic_t to refcount_t	2017-07-01 07:39:08 -07:00
sched	net: Remove all references to SKB_GSO_UDP.	2017-07-17 09:52:58 -07:00
sctp	sctp: remove the typedef sctp_hmac_algo_param_t	2017-07-16 20:52:14 -07:00
smc	net/smc: Add warning about remote memory exposure	2017-05-16 14:49:43 -04:00
strparser	strparser: destroy workqueue on module exit	2017-03-03 20:43:26 -08:00
sunrpc	net, sunrpc: convert gss_upcall_msg.count from atomic_t to refcount_t	2017-07-04 22:35:17 +01:00
switchdev	net: switchdev: Change notifier chain to be atomic	2017-06-08 14:16:24 -04:00
tipc	net: convert sock.sk_refcnt from atomic_t to refcount_t	2017-07-01 07:39:08 -07:00
tls	TLS: Fix length check in do_tls_getsockopt_tx()	2017-07-06 10:58:19 +01:00
unix	net/unix: drop obsolete fd-recursion limits	2017-07-17 08:57:59 -07:00
vmw_vsock	net: manual clean code which call skb_put_[data:zero]	2017-06-20 13:30:15 -04:00
wimax
wireless	netlink validation fixes for nl80211	2017-07-07 11:35:55 +01:00
x25	net, x25: convert x25_neigh.refcnt from atomic_t to refcount_t	2017-07-04 22:35:18 +01:00
xfrm	xfrm: add xdst pcpu cache	2017-07-18 11:13:41 -07:00
compat.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2017-02-22 10:15:09 -08:00
Kconfig	tls: kernel TLS support	2017-06-15 12:12:40 -04:00
Makefile	tls: kernel TLS support	2017-06-15 12:12:40 -04:00
socket.c	Merge branch 'work.misc-set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-05 13:13:32 -07:00
sysctl_net.c	sysctl: Remove dead register_sysctl_root	2017-04-16 23:42:49 -05:00