Alexei Starovoitov cff82457c5 net_sched: act_bpf: remove spinlock in fast path ... Similar to act_gact/act_mirred, act_bpf can be lockless in packet processing with extra care taken to free bpf programs after rcu grace period. Replacement of existing act_bpf (very rare) is done with synchronize_rcu() and final destruction is done from tc_action_ops->cleanup() callback that is called from tcf_exts_destroy()->tcf_action_destroy()->__tcf_hash_release() when bind and refcnt reach zero which is only possible when classifier is destroyed. Previous two patches fixed the last two classifiers (tcindex and rsvp) to call tcf_exts_destroy() from rcu callback. Similar to gact/mirred there is a race between prog->filter and prog->tcf_action. Meaning that the program being replaced may use previous default action if it happened to return TC_ACT_UNSPEC. act_mirred race betwen tcf_action and tcfm_dev is similar. In all cases the race is harmless. Long term we may want to improve the situation by replacing the whole tc_action->priv as single pointer instead of updating inner fields one by one. Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>		2015-08-26 11:01:45 -07:00
..
6lowpan	6lowpan: move module_init into core functionality	2015-08-11 22:05:36 +02:00
9p	virtio/vhost: fixes for 4.2	2015-07-23 13:07:04 -07:00
802	net: Kill dev_rebuild_header	2015-03-02 16:43:41 -05:00
8021q	net: 8021q: convert to using IFF_NO_QUEUE	2015-08-18 11:55:06 -07:00
appletalk	net: Pass kern from net_proto_family.create to sk_alloc	2015-05-11 10:50:17 -04:00
atm	br2684: Remove unnecessary formatting macros b1 and bs	2015-07-31 15:25:52 -07:00
ax25	NET: AX.25: Stop heartbeat timer on disconnect.	2015-07-15 15:59:58 -07:00
batman-adv	batman-adv: beautify supported routing algorithm list	2015-08-25 00:12:24 +02:00
bluetooth	Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next	2015-08-17 15:41:21 -07:00
bridge	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-08-21 11:44:04 -07:00
caif	net: caif: convert to using IFF_NO_QUEUE	2015-08-18 11:55:07 -07:00
can	can: replace timestamp as unique skb attribute	2015-07-12 21:13:22 +02:00
ceph	libceph: treat sockaddr_storage with uninitialized family as blank	2015-07-09 20:30:34 +03:00
core	route: fix a use-after-free	2015-08-25 14:29:19 -07:00
dcb	net/dcb: Add IEEE QCN attribute	2015-03-06 21:50:02 -05:00
dccp	tcp: fix recv with flags MSG_WAITALL | MSG_PEEK	2015-07-27 01:06:53 -07:00
decnet	net: Pass kern from net_proto_family.create to sk_alloc	2015-05-11 10:50:17 -04:00
dns_resolver
dsa	net: dsa: Allow multi hop routes to be expressed	2015-08-18 14:17:21 -07:00
ethernet	net: ethernet: Fix double word "the the" in eth.c	2015-08-09 22:53:00 -07:00
hsr	net: hsr: convert to using IFF_NO_QUEUE	2015-08-18 11:55:07 -07:00
ieee802154	net: 6lowpan: convert to using IFF_NO_QUEUE	2015-08-18 11:55:06 -07:00
ipv4	ah4: Fix error return in ah_input().	2015-08-25 13:38:50 -07:00
ipv6	ah6: fix error return code	2015-08-25 13:37:31 -07:00
ipx	net: Pass kern from net_proto_family.create to sk_alloc	2015-05-11 10:50:17 -04:00
irda	irda: use msecs_to_jiffies for conversion to jiffies	2015-05-25 17:46:21 -04:00
iucv	net: Pass kern from net_proto_family.create to sk_alloc	2015-05-11 10:50:17 -04:00
key	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2015-06-24 16:49:49 -07:00
l2tp	net: Modify sk_alloc to not reference count the netns of kernel sockets.	2015-05-11 10:50:18 -04:00
lapb
llc	tcp: fix recv with flags MSG_WAITALL | MSG_PEEK	2015-07-27 01:06:53 -07:00
mac80211	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-08-21 11:44:04 -07:00
mac802154	ieee802154: add ack request default handling	2015-08-10 20:43:06 +02:00
mpls	lwt: Add cfg argument to build_state	2015-08-24 10:34:40 -07:00
netfilter	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2015-08-21 06:09:05 +02:00
netlabel	netlink: implement nla_put_in_addr and nla_put_in6_addr	2015-03-31 13:58:35 -04:00
netlink	netlink: make sure -EBUSY won't escape from netlink_insert	2015-08-10 10:59:10 -07:00
netrom	netfilter: Remove spurios included of netfilter.h	2015-06-18 21:14:32 +02:00
nfc	nfc: netlink: Add capability to reply to vendor_cmd with data	2015-08-20 22:00:11 +02:00
openvswitch	route: move lwtunnel state to dst_entry	2015-08-20 15:42:36 -07:00
packet	packet: add extended BPF fanout mode	2015-08-17 14:22:48 -07:00
phonet	net: Pass kern from net_proto_family.create to sk_alloc	2015-05-11 10:50:17 -04:00
rds	RDS: remove superfluous from rds_ib_alloc_fmr()	2015-08-25 16:28:11 -07:00
rfkill	Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next	2015-08-17 15:41:21 -07:00
rose	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-06-24 02:58:51 -07:00
rxrpc	net: Pass kern from net_proto_family.create to sk_alloc	2015-05-11 10:50:17 -04:00
sched	net_sched: act_bpf: remove spinlock in fast path	2015-08-26 11:01:45 -07:00
sctp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-07-31 23:52:20 -07:00
sunrpc	NFS client bugfixes for Linux 4.2	2015-07-28 09:37:44 -07:00
switchdev	net: switchdev: support static FDB addresses	2015-08-11 12:03:19 -07:00
tipc	tipc: fix stale link problem during synchronization	2015-08-23 16:14:45 -07:00
unix	net/unix: support SCM_SECURITY for stream sockets	2015-06-10 22:49:20 -07:00
vmw_vsock	net: Pass kern from net_proto_family.create to sk_alloc	2015-05-11 10:50:17 -04:00
wimax	net:wimax: Fix doucble word "the the" in networking.xml	2015-08-09 22:43:52 -07:00
wireless	nl80211: Allow setting multicast rate on OCB interfaces	2015-08-14 17:49:48 +02:00
x25	net: Pass kern from net_proto_family.create to sk_alloc	2015-05-11 10:50:17 -04:00
xfrm	xfrm: Add oif to dst lookups	2015-08-11 12:41:35 +02:00
compat.c	net: switch importing msghdr from userland to {compat_,}import_iovec()	2015-04-09 00:02:26 -04:00
Kconfig	lwtunnel: infrastructure for handling light weight tunnels like mpls	2015-07-21 10:39:03 -07:00
Makefile	mpls: Refactor how the mpls module is built	2015-03-04 00:26:06 -05:00
socket.c	net: Add a struct net parameter to sock_create_kern	2015-05-11 10:50:17 -04:00
sysctl_net.c