Paolo Abeni
911362c70d
net: add dst_cache support ...
This patch add a generic, lockless dst cache implementation.
The need for lock is avoided updating the dst cache fields
only in per cpu scope, and requiring that the cache manipulation
functions are invoked with the local bh disabled.
The refresh_ts and reset_ts fields are used to ensure the cache
consistency in case of cuncurrent cache update (dst_cache_set*) and
reset operation (dst_cache_reset).
Consider the following scenario:
CPU1: CPU2:
<cache lookup with emtpy cache: it fails>
<get dst via uncached route lookup>
<related configuration changes>
dst_cache_reset()
dst_cache_set()
The dst entry set passed to dst_cache_set() should not be used
for later dst cache lookup, because it's obtained using old
configuration values.
Since the refresh_ts is updated only on dst_cache lookup, the
cached value in the above scenario will be discarded on the next
lookup.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Suggested-and-acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-16 20:21:48 -05:00
9p: switch p9_client_read() to passing struct iov_iter *
2015-04-11 22:28:27 -04:00
Bluetooth: L2CAP: Introduce proper defines for PSM ranges
2016-01-29 11:47:24 +01:00
caif: fix a signedness bug in cfpkt_iterate()
2015-02-20 17:35:14 -05:00
irda: Convert function pointer arrays and uses to const
2014-12-10 15:33:16 -05:00
s390/iucv: do not use arrays as argument
2015-09-21 16:03:04 -07:00
netfilter: nf_conntrack: use safer way to lock all buckets
2016-01-20 14:15:31 +01:00
igmp: Namespacify igmp_qrv sysctl knob
2016-02-11 09:59:22 -05:00
nfc: netlink: HCI event connectivity implementation
2015-12-29 19:06:20 +01:00
sock: struct proto hash function may error
2016-02-11 03:54:14 -05:00
sctp: remove the dead field of sctp_transport
2016-01-28 15:59:32 -08:00
act_connmark: Remember the struct net instead of guessing it.
2015-09-18 21:59:31 +02:00
6lowpan: add debugfs support
2015-12-10 01:25:25 +01:00
net_sched: make tcf_hash_destroy() static
2015-08-26 11:01:44 -07:00
inet: refactor inet[6]_lookup functions to take skb
2016-02-11 03:54:14 -05:00
ieee802154: af_ieee802154: fix typo in comment.
2015-09-17 13:20:05 +02:00
unix: avoid use-after-free in ep_remove_wait_queue
2015-11-23 12:29:58 -05:00
Revert "Merge branch 'vsock-virtio'"
2015-12-08 21:55:49 -05:00
neigh: Factor out ___neigh_lookup_noref
2015-03-04 00:23:23 -05:00
ax25: Stop using sock->sk_protinfo.
2015-06-28 16:55:44 -07:00
bonding: 3ad: apply ad_actor settings changes immediately
2016-02-09 04:45:49 -05:00
bonding: convert num_grat_arp to the new bonding option API
2015-07-27 01:05:24 -07:00
bonding: implement lower state change propagation
2015-12-03 11:49:27 -05:00
net: un-inline sk_busy_loop()
2015-11-18 16:17:38 -05:00
cfg80211: Add support for aborting an ongoing scan
2015-12-04 14:43:32 +01:00
nl802154: add support for security layer
2015-09-30 13:16:44 +02:00
rco: Clean up casting errors
2015-12-13 23:57:45 -05:00
cipso: don't use IPCB() to locate the CIPSO IP option
2015-02-11 14:46:37 -05:00
net: wrap sock->sk_cgrp_prioidx and ->sk_classid inside a struct
2015-12-08 22:02:33 -05:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-05-13 14:31:43 -04:00
net: switch importing msghdr from userland to {compat_,}import_iovec()
2015-04-09 00:02:26 -04:00
net/dcb: Add IEEE QCN attribute
2015-03-06 21:50:02 -05:00
netfilter: Pass net into okfn
2015-09-17 17:18:37 -07:00
net: dsa: remove DSA link polling
2015-12-07 16:35:49 -05:00
net: fix IP early demux races
2015-12-14 23:52:00 -05:00
net: add dst_cache support
2016-02-16 20:21:48 -05:00
gro: Make GRO aware of lightweight tunnels.
2016-01-20 18:48:38 -08:00
ipv4, ipv6: Pass net into __ip_local_out and __ip6_local_out
2015-10-08 04:27:02 -07:00
net/ethoc: support big-endian register layout
2015-09-23 15:33:15 -07:00
net: ipv6: use common fib_default_rule_pref
2015-09-09 14:19:50 -07:00
net: Rename FLOWI_FLAG_VRFSRC to FLOWI_FLAG_L3MDEV_SRC
2015-10-07 04:27:42 -07:00
flow_dissector: Don't use bit fields.
2015-09-01 16:46:08 -07:00
netlink: add a start callback for starting a netlink dump
2015-12-15 23:25:20 -05:00
geneve: Add geneve_get_rx_port support
2015-12-16 10:58:56 -05:00
gre: Remove support for sharing GRE protocol hook.
2015-08-10 14:03:54 -07:00
gro_cells: remove spinlock protecting receive queues
2015-08-31 15:17:17 -07:00
mac802154: constify ieee802154_llsec_ops structure
2016-01-04 20:40:41 +01:00
ipv6: do retries on stable privacy addresses
2015-03-23 22:12:09 -04:00
ila: Add generic ILA translation facility
2015-12-15 23:25:20 -05:00
ipv6: remove obsolete inet6 functions
2015-10-03 04:32:42 -07:00
inet: refactor inet[6]_lookup functions to take skb
2016-02-11 03:54:14 -05:00
net: avoid NULL deref in inet_ctl_sock_destroy()
2015-11-02 22:46:09 -05:00
tcp/dccp: fix hashdance race for passive sessions
2015-10-23 05:42:21 -07:00
ipv6: update skb->csum when CE mark is propagated
2016-01-15 15:07:23 -05:00
inet: kill unused skb_free op
2016-01-05 22:25:57 -05:00
soreuseport: fast reuseport TCP socket selection
2016-02-11 03:54:15 -05:00
net: Allow accepted sockets to be bound to l3mdev domain
2015-12-18 14:43:38 -05:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-10-20 06:08:27 -07:00
inet: tcp: fix inetpeer_set_addr_v4()
2015-12-16 00:14:12 -05:00
ipv4: Pass struct net into ip_defrag and ip_check_defrag
2015-10-12 19:44:16 -07:00
ipv6: Check rt->dst.from for the DST_NOCACHE route
2015-11-15 17:12:37 -05:00
ipv6: enforce flowi6_oif usage in ip6_dst_lookup_tail()
2016-01-29 20:31:26 -08:00
net: make ip6tunnel_xmit definition conditional
2016-01-04 21:50:51 -05:00
ipv4: eliminate endianness warnings in ip_fib.h
2016-01-08 21:30:43 -05:00
net: ip_tunnel: remove 'csum_help' argument to iptunnel_handle_offloads
2016-02-12 05:52:16 -05:00
ipvs: Remove skb_sknet
2015-09-24 09:34:43 +09:00
ipv6: add ipv6_addr_prefix_copy
2015-12-10 12:55:28 +01:00
wext: add checked wrappers for adding events/points to streams
2015-02-28 21:31:12 +01:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-01-06 22:54:18 -05:00
llc: Make llc_conn_ev_qfyr_t function pointer arrays const
2014-12-10 15:21:24 -05:00
net: Pass kern from net_proto_family.create to sk_alloc
2015-05-11 10:50:17 -04:00
llc: Make llc_sap_action_t function pointer arrays const
2014-12-10 15:21:24 -05:00
dst: Pass net into dst->output
2015-10-08 04:27:03 -07:00
mac80211: add new IEEE80211_VIF_GET_NOA_UPDATE flag
2015-12-04 14:43:32 +01:00
6lowpan: cleanup lowpan_header_decompress
2015-10-21 00:49:24 +02:00
mpls: multipath route support
2015-10-23 06:26:42 -07:00
Revert "ipv6: ndisc: inherit metadata dst when creating ndisc requests"
2015-12-01 15:07:59 -05:00
net: add explicit logging and stat for neighbour table overflow
2015-08-10 13:46:21 -07:00
netfilter: cttimeout: add netns support
2015-12-14 12:48:58 +01:00
netlink: add nla_get for le32 and le64
2015-09-30 13:16:44 +02:00
net: wrap sock->sk_cgrp_prioidx and ->sk_classid inside a struct
2015-12-08 22:02:33 -05:00
nl802154: add support for security layer
2015-09-30 13:16:44 +02:00
sock: struct proto hash function may error
2016-02-11 03:54:14 -05:00
net: sched: consolidate tc_classify{,_compat}
2015-08-27 14:18:48 -07:00
udp: restrict offloads to one namespace
2016-01-10 17:28:24 -05:00
sock: struct proto hash function may error
2016-02-11 03:54:14 -05:00
cfg80211: allow wiphy specific regdomain management
2014-12-17 11:49:55 +01:00
net: add inet_sk_transparent() helper
2015-12-22 17:03:05 -05:00
net: Propagate lookup failure in l3mdev_get_saddr to caller
2016-01-04 22:58:30 -05:00
netlink: Rightsize IFLA_AF_SPEC size calculation
2015-10-21 19:15:20 -07:00
net, sched: add skb_at_tc_ingress helper
2016-01-10 17:54:28 -05:00
sock: struct proto hash function may error
2016-02-11 03:54:14 -05:00
soreuseport: fix NULL ptr dereference SO_REUSEPORT after bind
2016-01-19 14:44:23 -05:00
switchdev: Adding MDB entry offload
2016-01-10 16:50:20 -05:00
ipv4: Namespaceify tcp_notsent_lowat sysctl knob
2016-02-07 14:36:11 -05:00
inet: add TCP_NEW_SYN_RECV state
2015-03-12 22:58:12 -04:00
inet: remove BUG_ON() in twsk_destructor()
2015-07-09 15:12:20 -07:00
net: tso: add support for IPv6
2015-10-26 22:24:22 -07:00
sock: struct proto hash function may error
2016-02-11 03:54:14 -05:00
net: ip_tunnel: remove 'csum_help' argument to iptunnel_handle_offloads
2016-02-12 05:52:16 -05:00
net: switch memcpy_fromiovec()/memcpy_fromiovecend() users to copy_from_iter()
2015-02-04 01:34:15 -05:00
vxlan: restructure vxlan.h definitions
2016-02-07 13:51:00 -05:00
xfrm: add rcu protection to sk->sk_policy[]
2015-12-11 19:22:06 -05:00
911362c70d