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Eric Dumazet 46bcf14f44 filter: fix sk_filter rcu handling 
Pavel Emelyanov tried to fix a race between sk_filter_(de|at)tach and
sk_clone() in commit 47e958eac280c263397

Problem is we can have several clones sharing a common sk_filter, and
these clones might want to sk_filter_attach() their own filters at the
same time, and can overwrite old_filter->rcu, corrupting RCU queues.

We can not use filter->rcu without being sure no other thread could do
the same thing.

Switch code to a more conventional ref-counting technique : Do the
atomic decrement immediately and queue one rcu call back when last
reference is released.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-06 09:29:43 -08:00
..
9p
9p: Add datasync to client side TFSYNC/RFSYNC for dotl
2010-10-28 09:08:49 -05:00
bluetooth
Bluetooth: clean up rfcomm code
2010-10-12 12:44:53 -03:00
caif
caif: SPI-driver bugfix - incorrect padding.
2010-11-03 18:50:03 -07:00
irda
net: return operator cleanup
2010-09-23 14:33:39 -07:00
iucv
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
netfilter
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
2010-10-23 11:47:02 -07:00
netns
netns: reorder fields in struct net
2010-10-17 13:49:14 -07:00
phonet
Phonet: 'connect' socket implementation for Pipe controller
2010-10-13 14:40:34 -07:00
sctp
net: return operator cleanup
2010-09-23 14:33:39 -07:00
tc_act
net/sched: add ACT_CSUM action to update packets checksums
2010-08-20 01:42:59 -07:00
tipc
tipc: cleanup function namespace
2010-10-16 11:13:24 -07:00
act_api.h
pkt_sched: gen_kill_estimator() rcu fixes
2010-06-11 18:37:08 -07:00
addrconf.h
ipv6: make __ipv6_isatap_ifid static
2010-10-05 00:47:39 -07:00
af_ieee802154.h
af_ieee802154: add support for WANT_ACK socket option
2009-08-12 21:54:50 -07:00
af_rxrpc.h
…
af_unix.h
af_unix: limit recursion level
2010-11-29 09:45:15 -08:00
ah.h
net: cleanup include/net
2009-11-04 05:06:25 -08:00
arp.h
arp: remove unnecessary export of arp_broken_ops
2010-09-29 19:45:35 -07:00
atmclip.h
clip: convert to internal network_device_stats
2009-01-21 14:01:59 -08:00
ax25.h
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
ax88796.h
ax88796: Add method to take MAC from platform data
2009-03-24 23:32:03 -07:00
cfg80211.h
cfg80211: fix WIPHY_FLAG_IBSS_RSN bit
2010-11-15 15:00:42 -05:00
checksum.h
include/net net/ - csum_partial - remove unnecessary casts
2008-11-19 15:44:53 -08:00
cipso_ipv4.h
netlabel: Label incoming TCP connections correctly in SELinux
2009-03-28 15:01:36 +11:00
cls_cgroup.h
Merge commit 'v2.6.36-rc7' into core/rcu
2010-10-07 09:43:45 +02:00
compat.h
net: fix compat_sys_recvmmsg parameter type
2009-12-11 15:07:56 -08:00
datalink.h
…
dcbnl.h
dcbnl: Add support for setapp/getapp to netdev dcbnl_rtnl_ops
2009-09-01 01:24:30 -07:00
dn_dev.h
net: use __packed annotation
2010-06-03 03:21:52 -07:00
dn_fib.h
decnet: Remove unused FIB metric macros.
2010-03-27 19:23:46 -07:00
dn_neigh.h
…
dn_nsp.h
net: use __packed annotation
2010-06-03 03:21:52 -07:00
dn_route.h
net-next: remove useless union keyword
2010-06-10 23:31:35 -07:00
dn.h
net: avoid limits overflow
2010-11-10 12:12:00 -08:00
dsa.h
dsa: add switch chip cascading support
2009-03-21 19:06:54 -07:00
dsfield.h
[NET]: Constify include/net/dsfield.h
2008-01-28 14:55:58 -08:00
dst_ops.h
b43legacy: Fix compile on ARM architecture
2010-11-15 15:00:42 -05:00
dst.h
ipv4: add __rcu annotations to routes.c
2010-10-27 11:37:31 -07:00
esp.h
[IPSEC]: Use crypto_aead and authenc in ESP
2008-01-31 19:27:02 -08:00
ethoc.h
net: Add support for the OpenCores 10/100 Mbps Ethernet MAC.
2009-03-27 00:16:21 -07:00
fib_rules.h
fib_rules: __rcu annotates ctarget
2010-10-27 11:37:32 -07:00
flow.h
ipv4: Allow configuring subnets as local addresses
2010-09-28 23:38:15 -07:00
garp.h
net/802: add __rcu annotations
2010-10-25 13:09:44 -07:00
gen_stats.h
net: cleanup include/net
2009-11-04 05:06:25 -08:00
genetlink.h
genetlink: introduce pre_doit/post_doit hooks
2010-10-05 13:35:30 -04:00
gre.h
PPTP: PPP over IPv4 (Point-to-Point Tunneling Protocol)
2010-08-21 23:05:39 -07:00
icmp.h
ipv4: raw: move struct raw_sock and raw_sk() to include/net/raw.h
2010-04-13 14:49:31 -07:00
ieee80211_radiotap.h
wireless: update radiotap parser
2010-02-08 16:50:53 -05:00
ieee802154_netdev.h
ieee802154: add an mlme_ops call to retrieve PHY object
2009-11-06 14:32:18 +03:00
ieee802154.h
ieee802154: move headers out of extra directory
2009-07-23 17:08:51 +04:00
if_inet6.h
ipv6: Replace inet6_ifaddr->dead with state
2010-05-18 15:36:06 -07:00
inet6_connection_sock.h
net: replace ipfragok with skb->local_df
2010-04-15 23:36:37 -07:00
inet6_hashtables.h
tcp: Fix a connect() race with timewait sockets
2009-12-08 20:17:51 -08:00
inet_common.h
inet, inet6: make tcp_sendmsg() and tcp_sendpage() through inet_sendmsg() and inet_sendpage()
2010-07-12 20:21:46 -07:00
inet_connection_sock.h
tcp: Add TCP_USER_TIMEOUT socket option.
2010-08-30 13:23:33 -07:00
inet_ecn.h
net: return operator cleanup
2010-09-23 14:33:39 -07:00
inet_frag.h
fragment: add fast path for in-order fragments
2010-06-30 13:44:29 -07:00
inet_hashtables.h
tproxy: fix hash locking issue when using port redirection in __inet_inherit_port()
2010-10-21 13:06:43 +02:00
inet_sock.h
net - IP_NODEFRAG option for IPv4 socket
2010-06-23 13:16:38 -07:00
inet_timewait_sock.h
net: suppress RCU lockdep false positive in twsk_net()
2010-04-27 12:39:01 -07:00
inetpeer.h
inetpeer: __rcu annotations
2010-10-27 11:37:33 -07:00
ip6_checksum.h
…
ip6_fib.h
net-next: remove useless union keyword
2010-06-10 23:31:35 -07:00
ip6_route.h
net: sk_dst_cache RCUification
2010-04-13 01:41:33 -07:00
ip6_tunnel.h
tunnels: add _rcu annotations
2010-10-25 13:09:45 -07:00
ip_fib.h
fib: Fix fib zone and its hash leak on namespace stop
2010-10-28 10:27:03 -07:00
ip_vs.h
ipvs: provide address family for debugging
2010-10-21 11:04:43 +02:00
ip.h
ipv4: add __rcu annotations to ip_ra_chain
2010-10-25 14:18:28 -07:00
ipcomp.h
percpu: add __percpu sparse annotations to net
2010-02-16 23:05:38 -08:00
ipconfig.h
net: remove CVS keywords
2008-06-11 21:00:38 -07:00
ipip.h
tunnels: add __rcu annotations
2010-10-27 11:37:32 -07:00
ipv6.h
net: return operator cleanup
2010-09-23 14:33:39 -07:00
ipx.h
net: use __packed annotation
2010-06-03 03:21:52 -07:00
iw_handler.h
include/net/iw_handler.h: Use SIOCIWFIRST not SIOCSIWCOMMIT in comment
2010-03-31 14:49:12 -04:00
lapb.h
…
lib80211.h
lib80211: remove unused host_build_iv option
2010-07-26 15:09:04 -04:00
llc_c_ac.h
…
llc_c_ev.h
…
llc_c_st.h
…
llc_conn.h
llc: use a device based hash table to speed up multicast delivery
2009-12-26 20:43:57 -08:00
llc_if.h
[LLC]: Kill static inline llc_addrany
2008-02-29 11:46:17 -08:00
llc_pdu.h
[LLC]: skb allocation size for responses
2008-03-31 21:02:47 -07:00
llc_s_ac.h
…
llc_s_ev.h
…
llc_s_st.h
…
llc_sap.h
[LLC]: skb allocation size for responses
2008-03-31 21:02:47 -07:00
llc.h
llc: convert llc_sap_list to RCU
2009-12-26 20:46:28 -08:00
mac80211.h
mac80211: add probe request filter flag
2010-10-13 15:45:22 -04:00
mip6.h
net: use __packed annotation
2010-06-03 03:21:52 -07:00
mld.h
ipv6 mcast: Introduce include/net/mld.h for MLD definitions.
2010-04-23 13:35:55 +09:00
ndisc.h
net: use __packed annotation
2010-06-03 03:21:52 -07:00
neighbour.h
net: Fix duplicate volatile warning.
2010-11-18 09:40:04 -08:00
net_namespace.h
net_ns: add __rcu annotations
2010-10-25 14:18:27 -07:00
netdma.h
net_dma: convert to dma_find_channel
2009-01-06 11:38:15 -07:00
netevent.h
[NET]: Remove unnecessary inclusion of dst.h
2008-01-28 14:53:38 -08:00
netlabel.h
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
netlink.h
netlink: Make nlmsg_find_attr take a const nlmsghdr*.
2010-11-04 12:26:34 -07:00
netrom.h
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
nexthop.h
…
nl802154.h
ieee802154: add support for channel pages from IEEE 802.15.4-2006
2009-08-19 23:08:22 +04:00
p8022.h
…
pkt_cls.h
net: rename skb->iif to skb->skb_iif
2009-11-20 15:35:04 -08:00
pkt_sched.h
net: Define accessors to manipulate QDISC_STATE_RUNNING
2010-06-02 03:23:51 -07:00
protocol.h
net: add __rcu annotations to protocol
2010-10-27 11:37:31 -07:00
psnap.h
snap: use const for descriptor
2009-03-21 19:06:50 -07:00
raw.h
include/net/raw.h: Convert raw_seq_private macro to inline
2010-09-08 13:42:22 -07:00
rawv6.h
ipv6: Use correct data types for ICMPv6 type and code
2009-06-23 04:31:07 -07:00
red.h
net: cleanup include/net
2009-11-04 05:06:25 -08:00
regulatory.h
wireless: only use alpha2 regulatory information from country IE
2010-07-20 16:44:35 -04:00
request_sock.h
tcp: account SYN-ACK timeouts & retransmissions
2010-01-17 19:09:39 -08:00
rose.h
NET: ROSE: Don't use static buffer.
2009-07-26 19:11:14 -07:00
route.h
tproxy: check for transparent flag in ip_route_newports
2010-09-27 15:03:33 -07:00
rtnetlink.h
rtnetlink: remove rtnl_kill_links
2010-10-21 03:09:45 -07:00
sch_generic.h
net_sched: remove the unused parameter of qdisc_create_dflt()
2010-10-21 03:09:47 -07:00
scm.h
scm: Capture the full credentials of the scm sender.
2010-06-16 14:55:56 -07:00
slhc_vj.h
…
snmp.h
snmp: 64bit ipstats_mib for all arches
2010-06-30 13:31:19 -07:00
sock.h
filter: fix sk_filter rcu handling
2010-12-06 09:29:43 -08:00
stp.h
net: Add STP demux layer
2008-07-05 21:25:39 -07:00
tcp_states.h
…
tcp.h
net: avoid limits overflow
2010-11-10 12:12:00 -08:00
timewait_sock.h
net: Fix memory leak in the proto_register function
2008-11-21 16:45:22 -08:00
transp_v6.h
IPv6: Add dontfrag argument to relevant functions
2010-04-23 23:35:28 -07:00
udp.h
net: avoid limits overflow
2010-11-10 12:12:00 -08:00
udplite.h
udp: introduce struct udp_table and multiple spinlocks
2008-10-29 01:41:45 -07:00
wext.h
wext: refactor
2009-10-07 16:39:43 -04:00
wimax.h
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2009-12-09 19:43:33 -08:00
wpan-phy.h
ieee802154: add support for creation/removal of logic interfaces
2009-11-06 14:32:24 +03:00
x25.h
X25: Move accept approve flag to bitfield
2010-05-17 17:39:27 -07:00
x25device.h
X25: Add if_x25.h and x25 to device identifiers
2010-04-22 16:12:36 -07:00
xfrm.h
tunnels: add __rcu annotations
2010-10-27 11:37:32 -07:00