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Simon Horman 736561a01f IPVS: Use global mutex in ip_vs_app.c 
As part of the work to make IPVS network namespace aware
__ip_vs_app_mutex was replaced by a per-namespace lock,
ipvs->app_mutex. ipvs->app_key is also supplied for debugging purposes.

Unfortunately this implementation results in ipvs->app_key residing
in non-static storage which at the very least causes a lockdep warning.

This patch takes the rather heavy-handed approach of reinstating
__ip_vs_app_mutex which will cover access to the ipvs->list_head
of all network namespaces.

[   12.610000] IPVS: Creating netns size=2456 id=0
[   12.630000] IPVS: Registered protocols (TCP, UDP, SCTP, AH, ESP)
[   12.640000] BUG: key ffff880003bbf1a0 not in .data!
[   12.640000] ------------[ cut here ]------------
[   12.640000] WARNING: at kernel/lockdep.c:2701 lockdep_init_map+0x37b/0x570()
[   12.640000] Hardware name: Bochs
[   12.640000] Pid: 1, comm: swapper Tainted: G        W 2.6.38-kexec-06330-g69b7efe-dirty #122
[   12.650000] Call Trace:
[   12.650000]  [<ffffffff8102e685>] warn_slowpath_common+0x75/0xb0
[   12.650000]  [<ffffffff8102e6d5>] warn_slowpath_null+0x15/0x20
[   12.650000]  [<ffffffff8105967b>] lockdep_init_map+0x37b/0x570
[   12.650000]  [<ffffffff8105829d>] ? trace_hardirqs_on+0xd/0x10
[   12.650000]  [<ffffffff81055ad8>] debug_mutex_init+0x38/0x50
[   12.650000]  [<ffffffff8104bc4c>] __mutex_init+0x5c/0x70
[   12.650000]  [<ffffffff81685ee7>] __ip_vs_app_init+0x64/0x86
[   12.660000]  [<ffffffff81685a3b>] ? ip_vs_init+0x0/0xff
[   12.660000]  [<ffffffff811b1c33>] T.620+0x43/0x170
[   12.660000]  [<ffffffff811b1e9a>] ? register_pernet_subsys+0x1a/0x40
[   12.660000]  [<ffffffff81685a3b>] ? ip_vs_init+0x0/0xff
[   12.660000]  [<ffffffff81685a3b>] ? ip_vs_init+0x0/0xff
[   12.660000]  [<ffffffff811b1db7>] register_pernet_operations+0x57/0xb0
[   12.660000]  [<ffffffff81685a3b>] ? ip_vs_init+0x0/0xff
[   12.670000]  [<ffffffff811b1ea9>] register_pernet_subsys+0x29/0x40
[   12.670000]  [<ffffffff81685f19>] ip_vs_app_init+0x10/0x12
[   12.670000]  [<ffffffff81685a87>] ip_vs_init+0x4c/0xff
[   12.670000]  [<ffffffff8166562c>] do_one_initcall+0x7a/0x12e
[   12.670000]  [<ffffffff8166583e>] kernel_init+0x13e/0x1c2
[   12.670000]  [<ffffffff8128c134>] kernel_thread_helper+0x4/0x10
[   12.670000]  [<ffffffff8128ad40>] ? restore_args+0x0/0x30
[   12.680000]  [<ffffffff81665700>] ? kernel_init+0x0/0x1c2
[   12.680000]  [<ffffffff8128c130>] ? kernel_thread_helper+0x0/0x1global0

Signed-off-by: Simon Horman <horms@verge.net.au>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Julian Anastasov <ja@ssi.bg>
Cc: Hans Schillstrom <hans@schillstrom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-21 20:39:24 -07:00
..
9p net/9p: Implement syncfs 9P operation 2011-03-15 09:57:38 -05:00
bluetooth Bluetooth: Move index to common header in management interface 2011-02-27 16:56:41 -03:00
caif include/net/caif/cfctrl.h: Remove unnecessary semicolons 2010-11-15 11:07:16 -08:00
irda tty: now phase out the ioctl file pointer for good 2011-02-17 11:59:56 -08:00
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 branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-02-19 19:17:35 -08:00
netns ipvs: move struct netns_ipvs 2011-03-15 09:36:50 +09:00
phonet Phonet: allocate sock from accept syscall rather than soft IRQ 2011-03-09 11:59:32 -08:00
sctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2011-01-19 20:25:45 -08:00
tc_act net/sched: add ACT_CSUM action to update packets checksums 2010-08-20 01:42:59 -07:00
act_api.h pkt_sched: gen_kill_estimator() rcu fixes 2010-06-11 18:37:08 -07:00
addrconf.h net: kill unused macros from head file 2010-12-02 13:27:33 -08:00
af_ieee802154.h
af_rxrpc.h
af_unix.h af_unix: limit recursion level 2010-11-29 09:45:15 -08:00
ah.h ipsec: update MAX_AH_AUTH_LEN to support sha512 2011-01-13 21:48:25 -08:00
arp.h arp: allow to invalidate specific ARP entries 2011-01-10 16:10:37 -08:00
atmclip.h
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
cfg80211.h wireless: add support for ethtool_ops->{get,set}_ringparam 2011-03-11 14:16:58 -05:00
checksum.h
cipso_ipv4.h
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
dcbevent.h net_dcb: add application notifiers 2010-12-31 10:47:46 -08:00
dcbnl.h dcbnl: add support for retrieving peer configuration - cee 2011-03-02 21:58:55 -08:00
dn.h decnet: Convert to use flowidn where applicable. 2011-03-12 15:08:55 -08:00
dn_dev.h decnet: RCU conversion and get rid of dev_base_lock 2010-11-08 13:50:08 -08:00
dn_fib.h decnet: Convert to use flowidn where applicable. 2011-03-12 15:08:55 -08:00
dn_neigh.h
dn_nsp.h net: use __packed annotation 2010-06-03 03:21:52 -07:00
dn_route.h decnet: Convert to use flowidn where applicable. 2011-03-12 15:08:55 -08:00
dsa.h
dsfield.h
dst.h xfrm: Return dst directly from xfrm_lookup() 2011-03-02 13:27:41 -08:00
dst_ops.h net: Implement read-only protection and COW'ing of metrics. 2011-01-26 20:51:05 -08:00
esp.h
ethoc.h
fib_rules.h fib_rules: __rcu annotates ctarget 2010-10-27 11:37:32 -07:00
flow.h decnet: Convert to use flowidn where applicable. 2011-03-12 15:08:55 -08:00
garp.h net/802: add __rcu annotations 2010-10-25 13:09:44 -07:00
gen_stats.h
genetlink.h include/net/genetlink.h: Allow genlmsg_cancel to accept a NULL argument 2011-02-03 20:47:08 -08:00
gre.h PPTP: PPP over IPv4 (Point-to-Point Tunneling Protocol) 2010-08-21 23:05:39 -07:00
icmp.h inetpeer: Move ICMP rate limiting state into inet_peer entries. 2011-02-04 15:59:53 -08:00
ieee80211_radiotap.h mac80211: add MCS information to radiotap 2011-01-28 15:44:29 -05:00
ieee802154.h
ieee802154_netdev.h
if_inet6.h ipv6: mcast: RCU conversion 2010-11-24 11:16:42 -08:00
inet6_connection_sock.h ipv6: Create inet6_csk_route_req(). 2010-12-02 10:59:22 -08:00
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 net: kill unused macros 2010-12-19 21:59:35 -08:00
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 inet: Remove explicit write references to sk/inet in ip_append_data 2011-03-01 12:35:02 -08:00
inet_timewait_sock.h net: optimize INET input path further 2010-12-09 20:05:58 -08:00
inetpeer.h inetpeer: Add redirect and PMTU discovery cached info. 2011-02-10 13:29:30 -08:00
ip.h inet: Add ip_make_skb and ip_finish_skb 2011-03-01 12:35:03 -08:00
ip6_checksum.h
ip6_fib.h ipv6: Convert to use flowi6 where applicable. 2011-03-12 15:08:54 -08:00
ip6_route.h ipv6: Convert to use flowi6 where applicable. 2011-03-12 15:08:54 -08:00
ip6_tunnel.h tunnels: add _rcu annotations 2010-10-25 13:09:45 -07:00
ip_fib.h ipv4: Pass ipv4 flow objects into fib_lookup() paths. 2011-03-12 15:08:47 -08:00
ip_vs.h IPVS: Use global mutex in ip_vs_app.c 2011-03-21 20:39:24 -07:00
ipcomp.h percpu: add __percpu sparse annotations to net 2010-02-16 23:05:38 -08:00
ipconfig.h
ipip.h tunnels: add __rcu annotations 2010-10-27 11:37:32 -07:00
ipv6.h ipv6: Convert to use flowi6 where applicable. 2011-03-12 15:08:54 -08:00
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.h llc: convert llc_sap_list to RCU 2009-12-26 20:46:28 -08:00
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_pdu.h
llc_s_ac.h
llc_s_ev.h
llc_s_st.h
llc_sap.h
mac80211.h mac80211: implement support for cfg80211_ops->{get,set}_ringparam 2011-03-11 15:34:10 -05:00
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: kill unused macros from head file 2010-12-02 13:27:33 -08:00
neighbour.h Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-11-19 13:13:47 -08:00
net_namespace.h ipvs: move struct netns_ipvs 2011-03-15 09:36:50 +09:00
netdma.h
netevent.h net: Kill NETEVENT_PMTU_UPDATE. 2011-02-08 16:17:55 -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 netfilter: NFNL_SUBSYS_IPSET id and NLA_PUT_NET* macros 2011-02-01 15:20:14 +01:00
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
p8022.h
pkt_cls.h net: Fix range checks in tcf_valid_offset(). 2010-12-21 12:43:16 -08:00
pkt_sched.h net: Define accessors to manipulate QDISC_STATE_RUNNING 2010-06-02 03:23:51 -07:00
protocol.h net: change netdev->features to u32 2011-01-24 15:32:47 -08:00
psnap.h
raw.h include/net/raw.h: Convert raw_seq_private macro to inline 2010-09-08 13:42:22 -07:00
rawv6.h
red.h sched: remove unused backlog in RED stats 2011-01-12 19:00:39 -08:00
regulatory.h cfg80211: Fix regulatory bug with multiple cards and delays 2010-11-22 15:48:51 -05:00
request_sock.h tcp: account SYN-ACK timeouts & retransmissions 2010-01-17 19:09:39 -08:00
rose.h
route.h net: Put fl4_* macros to struct flowi4 and use them again. 2011-03-12 15:08:54 -08:00
rtnetlink.h rtnl: make link af-specific updates atomic 2010-11-27 22:56:08 -08:00
sch_generic.h Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-03-03 21:27:42 -08:00
scm.h scm: lower SCM_MAX_FD 2010-11-24 11:16:43 -08:00
slhc_vj.h
snmp.h snmp: SNMP_UPD_PO_STATS_BH() always called from softirq 2011-03-21 18:12:54 -07:00
sock.h net: add __rcu annotations to sk_wq and wq 2011-02-22 10:19:31 -08:00
stp.h
tcp.h tcp: Remove debug macro of TCP_CHECK_TIMER 2011-02-20 11:10:14 -08:00
tcp_states.h
timewait_sock.h timewait_sock: Create and use getpeer op. 2010-12-01 18:09:13 -08:00
transp_v6.h ipv6: Convert to use flowi6 where applicable. 2011-03-12 15:08:54 -08:00
udp.h udp: Switch to ip_finish_skb 2011-03-01 12:35:03 -08:00
udplite.h udp: Switch to ip_finish_skb 2011-03-01 12:35:03 -08:00
wext.h
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
x25.h X25 remove bkl in subscription ioctls 2010-11-28 11:12:20 -08:00
x25device.h X25: Add if_x25.h and x25 to device identifiers 2010-04-22 16:12:36 -07:00
xfrm.h xfrm: Fix initialize repl field of struct xfrm_state 2011-03-21 18:08:28 -07:00