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Hans Schillstrom ae1d48b23d IPVS netns shutdown/startup dead-lock 
ip_vs_mutext is used by both netns shutdown code and startup
and both implicit uses sk_lock-AF_INET mutex.

cleanup CPU-1         startup CPU-2
ip_vs_dst_event()     ip_vs_genl_set_cmd()
 sk_lock-AF_INET     __ip_vs_mutex
                     sk_lock-AF_INET
__ip_vs_mutex
* DEAD LOCK *

A new mutex placed in ip_vs netns struct called sync_mutex is added.

Comments from Julian and Simon added.
This patch has been running for more than 3 month now and it seems to work.

Ver. 3
    IP_VS_SO_GET_DAEMON in do_ip_vs_get_ctl protected by sync_mutex
    instead of __ip_vs_mutex as sugested by Julian.

Signed-off-by: Hans Schillstrom <hans@schillstrom.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-10-12 18:32:15 +02:00
..
ipset
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6
2011-07-21 12:39:35 -07:00
ipvs
IPVS netns shutdown/startup dead-lock
2011-10-12 18:32:15 +02:00
core.c
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2011-02-19 19:17:35 -08:00
Kconfig
netfilter: xt_addrtype: replace rt6_lookup with nf_afinfo->route
2011-04-04 17:01:43 +02:00
Makefile
netfilter: ipt_addrtype: rename to xt_addrtype
2011-03-15 20:16:20 +01:00
nf_conntrack_acct.c
netfilter: complete the deprecation of CONFIG_NF_CT_ACCT
2010-06-25 14:46:56 +02:00
nf_conntrack_amanda.c
netfilter: cleanup printk messages
2010-05-13 15:02:08 +02:00
nf_conntrack_broadcast.c
netfilter: nf_conntrack: nf_conntrack snmp helper
2011-01-18 18:12:24 +01:00
nf_conntrack_core.c
netfilter: nf_conntrack: fix ct refcount leak in l4proto->error()
2011-06-06 01:37:02 +02:00
nf_conntrack_ecache.c
netfilter: ecache: always set events bits, filter them later
2011-02-01 16:06:30 +01:00
nf_conntrack_expect.c
netfilter: nf_conntrack: use is_vmalloc_addr()
2011-01-14 15:45:56 +01:00
nf_conntrack_extend.c
net,rcu: convert call_rcu(__nf_ct_ext_free_rcu) to kfree_rcu()
2011-05-07 22:51:07 -07:00
nf_conntrack_ftp.c
netfilter: add more values to enum ip_conntrack_info
2011-06-06 01:35:10 +02:00
nf_conntrack_h323_asn1.c
netfilter: h323: bug in parsing of ASN1 SEQOF field
2011-04-04 15:21:02 +02:00
nf_conntrack_h323_main.c
netfilter: add more values to enum ip_conntrack_info
2011-06-06 01:35:10 +02:00
nf_conntrack_h323_types.c
[NETFILTER]: nf_conntrack_h323: constify and annotate H.323 helper
2008-01-31 19:28:07 -08:00
nf_conntrack_helper.c
netfilter: nf_conntrack: use is_vmalloc_addr()
2011-01-14 15:45:56 +01:00
nf_conntrack_irc.c
netfilter: add more values to enum ip_conntrack_info
2011-06-06 01:35:10 +02:00
nf_conntrack_l3proto_generic.c
[NETFILTER]: nf_conntrack: use bool type in struct nf_conntrack_l3proto
2008-04-14 11:15:52 +02:00
nf_conntrack_netbios_ns.c
netfilter: nf_conntrack: nf_conntrack snmp helper
2011-01-18 18:12:24 +01:00
nf_conntrack_netlink.c
rtnetlink: Compute and store minimum ifinfo dump size
2011-06-09 20:38:07 -07:00
nf_conntrack_pptp.c
netfilter: nf_ct_pptp: fix DNATed PPTP connection address translation
2011-08-30 15:23:03 +02:00
nf_conntrack_proto_dccp.c
Fix common misspellings
2011-03-31 11:26:23 -03:00
nf_conntrack_proto_generic.c
sysctl net: Remove unused binary sysctl code
2009-11-12 02:05:06 -08:00
nf_conntrack_proto_gre.c
netfilter: nf_conntrack: fix event flooding in GRE protocol tracker
2011-10-03 12:43:24 +02:00
nf_conntrack_proto_sctp.c
Fix common misspellings
2011-03-31 11:26:23 -03:00
nf_conntrack_proto_tcp.c
netfilter: nf_ct_tcp: wrong multiplication of TCPOLEN_TSTAMP_ALIGNED in tcp_sack skips fastpath
2011-08-30 15:46:13 +02:00
nf_conntrack_proto_udp.c
netfilter: nf_conntrack: pass template to l4proto ->error() handler
2010-02-15 17:45:08 +01:00
nf_conntrack_proto_udplite.c
netfilter: nf_conntrack: pass template to l4proto ->error() handler
2010-02-15 17:45:08 +01:00
nf_conntrack_proto.c
netfilter: rcu sparse cleanups
2010-11-15 19:45:13 +01:00
nf_conntrack_sane.c
netfilter: add more values to enum ip_conntrack_info
2011-06-06 01:35:10 +02:00
nf_conntrack_sip.c
netfilter: add more values to enum ip_conntrack_info
2011-06-06 01:35:10 +02:00
nf_conntrack_snmp.c
netfilter: nf_conntrack: nf_conntrack snmp helper
2011-01-18 18:12:24 +01:00
nf_conntrack_standalone.c
netfilter: nf_conntrack_standalone: Fix set-but-unused variables.
2011-04-17 17:03:33 -07:00
nf_conntrack_tftp.c
netfilter: cleanup printk messages
2010-05-13 15:02:08 +02:00
nf_conntrack_timestamp.c
netfilter: nf_conntrack_tstamp: add flow-based timestamp extension
2011-01-19 16:00:07 +01:00
nf_internals.h
netfilter: cleanup printk messages
2010-05-13 15:02:08 +02:00
nf_log.c
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2011-03-03 21:27:42 -08:00
nf_queue.c
netfilter: avoid double free in nf_reinject
2011-08-07 22:11:15 -07:00
nf_sockopt.c
net: Make setsockopt() optlen be unsigned.
2009-09-30 16:12:20 -07:00
nf_tproxy_core.c
netfilter: tproxy: do not assign timewait sockets to skb->sk
2011-02-17 11:32:38 +01:00
nfnetlink_log.c
atomic: use <linux/atomic.h>
2011-07-26 16:49:47 -07:00
nfnetlink_queue.c
netfilter: nf_queue: reject NF_STOLEN verdicts from userspace
2011-08-30 15:01:20 +02:00
nfnetlink.c
netfilter: nfnetlink: add RCU in nfnetlink_rcv_msg()
2011-07-18 16:08:07 +02:00
x_tables.c
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-3.6
2011-05-11 14:26:58 -04:00
xt_addrtype.c
netfilter: xt_addrtype: replace rt6_lookup with nf_afinfo->route
2011-04-04 17:01:43 +02:00
xt_AUDIT.c
netfilter: add SELinux context support to AUDIT target
2011-06-30 13:31:57 +02:00
xt_CHECKSUM.c
netfilter: add CHECKSUM target
2010-07-15 17:20:46 +02:00
xt_CLASSIFY.c
netfilter: xt_CLASSIFY: add ARP support, allow CLASSIFY target on any table
2010-11-15 13:57:56 +01:00
xt_cluster.c
netfilter: nf_conntrack: IPS_UNTRACKED bit
2010-06-08 16:09:52 +02:00
xt_comment.c
netfilter: xtables: deconstify struct xt_action_param for matches
2010-05-11 18:33:37 +02:00
xt_connbytes.c
netfilter: xt_connbytes: Force CT accounting to be enabled
2010-06-25 14:44:07 +02:00
xt_connlimit.c
netfilter: xt_connlimit: remove connlimit_rnd_inited
2011-03-15 13:26:32 +01:00
xt_connmark.c
netfilter: xtables: deconstify struct xt_action_param for matches
2010-05-11 18:33:37 +02:00
xt_CONNSECMARK.c
netfilter: xtables: substitute temporary defines by final name
2010-05-11 18:31:17 +02:00
xt_conntrack.c
netfilter: revert a2361c8735e07322023aedc36e4938b35af31eb0
2011-05-10 12:13:36 +02:00
xt_cpu.c
netfilter: xtables: add missing aliases for autoloading via iptables
2011-01-18 06:33:54 +01:00
xt_CT.c
netfilter: xt_CT: provide info on why a rule was rejected
2011-04-21 11:05:14 +02:00
xt_dccp.c
netfilter: xtables: change hotdrop pointer to direct modification
2010-05-11 18:35:27 +02:00
xt_devgroup.c
netfilter: xtables: add device group match
2011-02-03 00:05:43 +01:00
xt_dscp.c
netfilter: xtables: deconstify struct xt_action_param for matches
2010-05-11 18:33:37 +02:00
xt_DSCP.c
netfilter: IPv6: fix DSCP mangle code
2011-05-10 10:00:21 +02:00
xt_esp.c
netfilter: xtables: change hotdrop pointer to direct modification
2010-05-11 18:35:27 +02:00
xt_hashlimit.c
netfilter: xt_hashlimit: use proto_ports_offset() to support AH message
2010-08-19 17:16:25 -07:00
xt_helper.c
netfilter: xtables: deconstify struct xt_action_param for matches
2010-05-11 18:33:37 +02:00
xt_hl.c
netfilter: Reduce switch/case indent
2011-07-01 16:11:15 -07:00
xt_HL.c
netfilter: Reduce switch/case indent
2011-07-01 16:11:15 -07:00
xt_IDLETIMER.c
netfilter: xtables: add missing aliases for autoloading via iptables
2011-01-18 06:33:54 +01:00
xt_iprange.c
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2011-02-04 14:28:58 -08:00
xt_ipvs.c
IPVS: netns, use ip_vs_proto_data as param.
2011-01-13 10:30:27 +09:00
xt_LED.c
netfilter: xtables: add missing aliases for autoloading via iptables
2011-01-18 06:33:54 +01:00
xt_length.c
netfilter: xtables: deconstify struct xt_action_param for matches
2010-05-11 18:33:37 +02:00
xt_limit.c
netfilter: xtables: deconstify struct xt_action_param for matches
2010-05-11 18:33:37 +02:00
xt_mac.c
netfilter: xtables: deconstify struct xt_action_param for matches
2010-05-11 18:33:37 +02:00
xt_mark.c
netfilter: xtables: deconstify struct xt_action_param for matches
2010-05-11 18:33:37 +02:00
xt_multiport.c
netfilter: xtables: change hotdrop pointer to direct modification
2010-05-11 18:35:27 +02:00
xt_NFLOG.c
netfilter: xtables: substitute temporary defines by final name
2010-05-11 18:31:17 +02:00
xt_NFQUEUE.c
netfilter: allow NFQUEUE bypass if no listener is available
2011-01-18 16:08:30 +01:00
xt_NOTRACK.c
netfilter: nf_conntrack: IPS_UNTRACKED bit
2010-06-08 16:09:52 +02:00
xt_osf.c
net,rcu: convert call_rcu(xt_osf_finger_free_rcu) to kfree_rcu()
2011-05-07 22:51:12 -07:00
xt_owner.c
netfilter: xtables: deconstify struct xt_action_param for matches
2010-05-11 18:33:37 +02:00
xt_physdev.c
netfilter: xtables: deconstify struct xt_action_param for matches
2010-05-11 18:33:37 +02:00
xt_pkttype.c
netfilter: xtables: deconstify struct xt_action_param for matches
2010-05-11 18:33:37 +02:00
xt_policy.c
netfilter: xtables: deconstify struct xt_action_param for matches
2010-05-11 18:33:37 +02:00
xt_quota.c
xt_quota: report initial quota value instead of current value to userspace
2010-07-23 14:07:47 +02:00
xt_rateest.c
netfilter: xt_rateest: fix xt_rateest_mt_checkentry()
2011-07-29 16:24:46 +02:00
xt_RATEEST.c
net,rcu: Convert call_rcu(xt_rateest_free_rcu) to kfree_rcu()
2011-07-20 14:10:19 -07:00
xt_realm.c
netfilter: xtables: deconstify struct xt_action_param for matches
2010-05-11 18:33:37 +02:00
xt_recent.c
llseek: automatically add .llseek fop
2010-10-15 15:53:27 +02:00
xt_repldata.h
netfilter: xtables: generate initial table on-demand
2010-02-10 17:50:47 +01:00
xt_sctp.c
netfilter: xt_sctp: use WORD_ROUND macro to calculate length of multiple of 4 bytes
2010-06-09 14:47:40 +02:00
xt_SECMARK.c
secmark: make secmark object handling generic
2010-10-21 10:12:48 +11:00
xt_set.c
Remove redundant linux/version.h includes from net/
2011-06-21 16:03:17 -07:00
xt_socket.c
netfilter: add more values to enum ip_conntrack_info
2011-06-06 01:35:10 +02:00
xt_state.c
netfilter: nf_conntrack: IPS_UNTRACKED bit
2010-06-08 16:09:52 +02:00
xt_statistic.c
netfilter: xt_statistic: remove nth_lock spinlock
2010-06-01 12:00:41 +02:00
xt_string.c
netfilter: xtables: deconstify struct xt_action_param for matches
2010-05-11 18:33:37 +02:00
xt_tcpmss.c
netfilter: xtables: change hotdrop pointer to direct modification
2010-05-11 18:35:27 +02:00
xt_TCPMSS.c
netfilter: af_info: add 'strict' parameter to limit lookup to .oif
2011-04-04 17:00:54 +02:00
xt_TCPOPTSTRIP.c
netfilter: xtables: substitute temporary defines by final name
2010-05-11 18:31:17 +02:00
xt_tcpudp.c
netfilter: xtables: change hotdrop pointer to direct modification
2010-05-11 18:35:27 +02:00
xt_TEE.c
ipv6: Convert to use flowi6 where applicable.
2011-03-12 15:08:54 -08:00
xt_time.c
netfilter: remove unnecessary returns from void function()s
2010-05-13 15:16:27 +02:00
xt_TPROXY.c
netfilter: tproxy: do not assign timewait sockets to skb->sk
2011-02-17 11:32:38 +01:00
xt_TRACE.c
netfilter: xtables: substitute temporary defines by final name
2010-05-11 18:31:17 +02:00
xt_u32.c
netfilter: xtables: deconstify struct xt_action_param for matches
2010-05-11 18:33:37 +02:00