Sasha Levin b16c29191d netfilter: nf_conntrack: use safer way to lock all buckets ... When we need to lock all buckets in the connection hashtable we'd attempt to lock 1024 spinlocks, which is way more preemption levels than supported by the kernel. Furthermore, this behavior was hidden by checking if lockdep is enabled, and if it was - use only 8 buckets(!). Fix this by using a global lock and synchronize all buckets on it when we need to lock them all. This is pretty heavyweight, but is only done when we need to resize the hashtable, and that doesn't happen often enough (or at all). Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Acked-by: Jesper Dangaard Brouer <brouer@redhat.com> Reviewed-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>		2016-01-20 14:15:31 +01:00
..
ipset	netfilter: ipset: allow a 0 netmask with hash_netiface type	2016-01-13 14:03:43 +01:00
ipvs	sctp: Rename NETIF_F_SCTP_CSUM to NETIF_F_SCTP_CRC	2015-12-15 16:49:58 -05:00
Kconfig	netfilter: nf_tables: add forward expression to the netdev family	2016-01-04 17:48:38 +01:00
Makefile	netfilter: nf_tables: add forward expression to the netdev family	2016-01-04 17:48:38 +01:00
core.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-10-24 06:54:12 -07:00
nf_conntrack_acct.c	netfilter: Remove uses of seq_<foo> return values	2015-03-18 10:51:35 +01:00
nf_conntrack_amanda.c	net: Remove state argument from skb_find_text()	2015-02-22 15:59:54 -05:00
nf_conntrack_broadcast.c	…
nf_conntrack_core.c	netfilter: nf_conntrack: use safer way to lock all buckets	2016-01-20 14:15:31 +01:00
nf_conntrack_ecache.c	netfilter: conntrack: remove timer from ecache extension	2014-06-25 19:15:38 +02:00
nf_conntrack_expect.c	netfilter: Set /proc/net entries owner to root in namespace	2015-11-25 13:54:09 +01:00
nf_conntrack_extend.c	…
nf_conntrack_ftp.c	netfilter: nf_ct_helper: define pr_fmt()	2016-01-04 17:48:51 +01:00
nf_conntrack_h323_asn1.c	…
nf_conntrack_h323_main.c	ipv6: Remove external dependency on rt6i_gateway and RTF_ANYCAST	2015-05-25 13:25:33 -04:00
nf_conntrack_h323_types.c	…
nf_conntrack_helper.c	netfilter: nf_conntrack: use safer way to lock all buckets	2016-01-20 14:15:31 +01:00
nf_conntrack_irc.c	netfilter: nf_ct_helper: define pr_fmt()	2016-01-04 17:48:51 +01:00
nf_conntrack_l3proto_generic.c	netfilter: Convert print_tuple functions to return void	2014-11-05 14:10:33 -05:00
nf_conntrack_labels.c	netfilter: connlabels: Export setting connlabel length	2015-08-27 11:40:43 -07:00
nf_conntrack_netbios_ns.c	…
nf_conntrack_netlink.c	netfilter: nf_conntrack: use safer way to lock all buckets	2016-01-20 14:15:31 +01:00
nf_conntrack_pptp.c	netfilter: nf_conntrack: push zone object into functions	2015-08-11 12:29:01 +02:00
nf_conntrack_proto.c	netfilter: nf_conntrack: remove dead code	2014-01-03 23:41:37 +01:00
nf_conntrack_proto_dccp.c	netfilter: nf_conntrack: Add a struct net parameter to l4_pkt_to_tuple	2015-09-18 22:00:04 +02:00
nf_conntrack_proto_generic.c	netfilter: nf_conntrack: Add a struct net parameter to l4_pkt_to_tuple	2015-09-18 22:00:04 +02:00
nf_conntrack_proto_gre.c	netfilter: nf_conntrack: Add a struct net parameter to l4_pkt_to_tuple	2015-09-18 22:00:04 +02:00
nf_conntrack_proto_sctp.c	netfilter: nf_conntrack: Add a struct net parameter to l4_pkt_to_tuple	2015-09-18 22:00:04 +02:00
nf_conntrack_proto_tcp.c	netfilter: nf_conntrack: Add a struct net parameter to l4_pkt_to_tuple	2015-09-18 22:00:04 +02:00
nf_conntrack_proto_udp.c	netfilter: nf_conntrack: Add a struct net parameter to l4_pkt_to_tuple	2015-09-18 22:00:04 +02:00
nf_conntrack_proto_udplite.c	netfilter: nf_conntrack: Add a struct net parameter to l4_pkt_to_tuple	2015-09-18 22:00:04 +02:00
nf_conntrack_sane.c	netfilter: nf_ct_helper: define pr_fmt()	2016-01-04 17:48:51 +01:00
nf_conntrack_seqadj.c	net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool	2015-08-17 21:33:06 -07:00
nf_conntrack_sip.c	netfilter: nf_ct_helper: define pr_fmt()	2016-01-04 17:48:51 +01:00
nf_conntrack_snmp.c	…
nf_conntrack_standalone.c	netfilter: Set /proc/net entries owner to root in namespace	2015-11-25 13:54:09 +01:00
nf_conntrack_tftp.c	netfilter: nf_ct_helper: define pr_fmt()	2016-01-04 17:48:51 +01:00
nf_conntrack_timeout.c	netfilter: cttimeout: add netns support	2015-12-14 12:48:58 +01:00
nf_conntrack_timestamp.c	netfilter: nf_ct_timestamp: Fix BUG_ON after netns deletion	2013-12-20 14:58:29 +01:00
nf_dup_netdev.c	netfilter: nf_tables: add packet duplication to the netdev family	2016-01-03 21:04:23 +01:00
nf_internals.h	netfilter: nf_queue: fix nf_queue_nf_hook_drop()	2015-07-23 16:17:58 +02:00
nf_log.c	netfilter: nf_log: wait for rcu grace after logger unregistration	2015-09-17 13:37:31 +02:00
nf_log_common.c	netfilter: bridge: add helpers for fetching physin/outdev	2015-04-08 16:49:08 +02:00
nf_nat_amanda.c	…
nf_nat_core.c	netfilter: Pass net into nf_xfrm_me_harder	2015-09-18 22:00:22 +02:00
nf_nat_ftp.c	…
nf_nat_helper.c	netfilter: nf_conntrack: make sequence number adjustments usuable without NAT	2013-08-28 00:26:48 +02:00
nf_nat_irc.c	netfilter: nf_nat: fix access to uninitialized buffer in IRC NAT helper	2014-01-06 14:17:17 +01:00
nf_nat_proto_common.c	netfilter: use IS_ENABLED() macro	2014-06-30 11:38:03 +02:00
nf_nat_proto_dccp.c	net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool	2015-08-17 21:33:06 -07:00
nf_nat_proto_sctp.c	netfilter: use IS_ENABLED() macro	2014-06-30 11:38:03 +02:00
nf_nat_proto_tcp.c	net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool	2015-08-17 21:33:06 -07:00
nf_nat_proto_udp.c	net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool	2015-08-17 21:33:06 -07:00
nf_nat_proto_udplite.c	net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool	2015-08-17 21:33:06 -07:00
nf_nat_proto_unknown.c	…
nf_nat_redirect.c	netfilter: nf_nat_redirect: add missing NULL pointer check	2015-10-27 06:54:56 +01:00
nf_nat_sip.c	netfilter: replace strnicmp with strncasecmp	2014-10-14 02:18:24 +02:00
nf_nat_tftp.c	…
nf_queue.c	netfilter: nf_queue: remove rcu_read_lock calls	2015-10-16 18:22:41 +02:00
nf_sockopt.c	netfilter: don't use mutex_lock_interruptible()	2014-08-08 16:47:23 +02:00
nf_synproxy_core.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf	2015-09-05 21:57:42 -07:00
nf_tables_api.c	netfilter: nf_tables: Add new attributes into nft_set to store user data.	2016-01-08 13:25:08 +01:00
nf_tables_core.c	netfilter: nf_tables: fix nf_log_trace based tracing	2015-12-09 16:53:46 +01:00
nf_tables_inet.c	netfilter: nf_tables: release objects on netns destruction	2015-12-28 18:34:35 +01:00
nf_tables_netdev.c	netfilter: nf_tables_netdev: fix error path in module initialization	2016-01-18 13:53:37 +01:00
nf_tables_trace.c	netfilter: nf_tables: wrap tracing with a static key	2015-12-09 13:23:13 +01:00
nfnetlink.c	netfilter: nfnetlink: pass down netns pointer to commit() and abort() callbacks	2015-12-28 18:43:15 +01:00
nfnetlink_acct.c	netfilter: nfnetlink: pass down netns pointer to call() and call_rcu()	2015-12-28 18:41:41 +01:00
nfnetlink_cthelper.c	netfilter: nfnetlink: pass down netns pointer to call() and call_rcu()	2015-12-28 18:41:41 +01:00
nfnetlink_cttimeout.c	netfilter: nf_conntrack: use safer way to lock all buckets	2016-01-20 14:15:31 +01:00
nfnetlink_log.c	netfilter: nfnetlink_log: just returns error for unknown command	2016-01-08 13:25:07 +01:00
nfnetlink_queue.c	netfilter: nfnetlink_queue: autoload nf_conntrack_netlink module NFQA_CFG_F_CONNTRACK config flag	2016-01-08 13:25:06 +01:00
nft_bitwise.c	netfilter: nf_tables: support variable sized data in nft_data_init()	2015-04-13 17:17:30 +02:00
nft_byteorder.c	netfilter: nft_byteorder: avoid unneeded le/be conversion steps	2016-01-13 14:02:59 +01:00
nft_cmp.c	netfilter: nf_tables: support variable sized data in nft_data_init()	2015-04-13 17:17:30 +02:00
nft_compat.c	netfilter: nfnetlink: pass down netns pointer to call() and call_rcu()	2015-12-28 18:41:41 +01:00
nft_counter.c	netfilter: nf_tables: add clone interface to expression operations	2015-11-10 23:47:32 +01:00
nft_ct.c	netfilter: nft_ct: keep counters away from CONFIG_NF_CONNTRACK_LABELS	2016-01-14 19:41:16 +01:00
nft_dup_netdev.c	netfilter: nf_tables: add packet duplication to the netdev family	2016-01-03 21:04:23 +01:00
nft_dynset.c	netfilter: nf_tables: add clone interface to expression operations	2015-11-10 23:47:32 +01:00
nft_exthdr.c	netfilter: nf_tables: switch registers to 32 bit addressing	2015-04-13 17:17:29 +02:00
nft_fwd_netdev.c	netfilter: nf_tables: add forward expression to the netdev family	2016-01-04 17:48:38 +01:00
nft_hash.c	netfilter: nf_tables: variable sized set element keys / data	2015-04-13 17:17:31 +02:00
nft_immediate.c	netfilter: nf_tables: support variable sized data in nft_data_init()	2015-04-13 17:17:30 +02:00
nft_limit.c	netfilter: nft_limit: allow to invert matching criteria	2016-01-03 20:58:52 +01:00
nft_log.c	netfilter: nf_tables: Use pkt->net instead of computing net from the passed net_devices	2015-09-18 21:58:49 +02:00
nft_lookup.c	netfilter: nf_tables: add flag to indicate set contains expressions	2015-04-13 20:12:32 +02:00
nft_masq.c	netfilter: nf_tables: validate hooks in NAT expressions	2015-01-19 14:52:39 +01:00
nft_meta.c	netfilter: meta: add support for setting skb->pkttype	2015-12-18 14:12:56 +01:00
nft_nat.c	netfilter: nf_tables: switch registers to 32 bit addressing	2015-04-13 17:17:29 +02:00
nft_payload.c	netfilter: nft_payload: add packet mangling support	2015-11-25 13:54:51 +01:00
nft_queue.c	netfilter: nf_tables: kill nft_pktinfo.ops	2015-09-18 21:58:01 +02:00
nft_rbtree.c	netfilter: nf_tables: variable sized set element keys / data	2015-04-13 17:17:31 +02:00
nft_redir.c	netfilter: nf_tables: add register parsing/dumping helpers	2015-04-13 17:17:28 +02:00
nft_reject.c	netfilter; Add some missing default cases to switch statements in nft_reject.	2015-04-27 13:20:34 -04:00
nft_reject_inet.c	ipv4: Push struct net down into nf_send_reset	2015-09-29 20:21:31 +02:00
x_tables.c	netfilter: Set /proc/net entries owner to root in namespace	2015-11-25 13:54:09 +01:00
xt_AUDIT.c	netfilter: Convert uses of __constant_<foo> to <foo>	2014-03-13 14:13:19 +01:00
xt_CHECKSUM.c	…
xt_CLASSIFY.c	…
xt_CONNSECMARK.c	…
xt_CT.c	netfilter: cttimeout: add netns support	2015-12-14 12:48:58 +01:00
xt_DSCP.c	netfilter: fix various sparse warnings	2014-11-13 12:14:42 +01:00
xt_HL.c	…
xt_HMARK.c	net: use reciprocal_scale() helper	2014-08-23 12:21:21 -07:00
xt_IDLETIMER.c	netfilter: IDLETIMER: fix lockdep warning	2015-07-13 17:23:25 +02:00
xt_LED.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-08-05 18:46:26 -07:00
xt_LOG.c	netfilter: x_tables: Use par->net instead of computing from the passed net devices	2015-09-18 21:58:25 +02:00
xt_NETMAP.c	…
xt_NFLOG.c	netfilter: x_tables: Use par->net instead of computing from the passed net devices	2015-09-18 21:58:25 +02:00
xt_NFQUEUE.c	netfilter: xt_NFQUEUE: separate reusable code	2013-12-07 23:20:45 +01:00
xt_RATEEST.c	net: sched: make bstats per cpu and estimator RCU safe	2014-09-30 01:02:26 -04:00
xt_REDIRECT.c	netfilter: combine IPv4 and IPv6 nf_nat_redirect code in one module	2014-11-27 13:08:42 +01:00
xt_SECMARK.c	…
xt_TCPMSS.c	netfilter: xt_TCPMSS: handle CHECKSUM_COMPLETE in tcpmss_tg6()	2016-01-18 12:18:17 +01:00
xt_TCPOPTSTRIP.c	net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool	2015-08-17 21:33:06 -07:00
xt_TEE.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf	2015-11-04 20:47:50 -05:00
xt_TPROXY.c	netfilter: x_tables: Use par->net instead of computing from the passed net devices	2015-09-18 21:58:25 +02:00
xt_TRACE.c	…
xt_addrtype.c	netfilter: x_tables: Use par->net instead of computing from the passed net devices	2015-09-18 21:58:25 +02:00
xt_bpf.c	net: filter: split 'struct sk_filter' into socket and bpf parts	2014-08-02 15:03:58 -07:00
xt_cgroup.c	netfilter: implement xt_cgroup cgroup2 path match	2015-12-14 20:34:55 +01:00
xt_cluster.c	net: use reciprocal_scale() helper	2014-08-23 12:21:21 -07:00
xt_comment.c	…
xt_connbytes.c	netfilter: Convert pr_warning to pr_warn	2014-09-10 12:40:10 -07:00
xt_connlabel.c	netfilter: connlabels: Export setting connlabel length	2015-08-27 11:40:43 -07:00
xt_connlimit.c	netfilter: nf_conntrack: Add a struct net parameter to l4_pkt_to_tuple	2015-09-18 22:00:04 +02:00
xt_connmark.c	netfilter: Fix FSF address in file headers	2013-12-06 12:37:57 -05:00
xt_conntrack.c	…
xt_cpu.c	…
xt_dccp.c	…
xt_devgroup.c	…
xt_dscp.c	…
xt_ecn.c	…
xt_esp.c	…
xt_hashlimit.c	netfilter: Remove checks of seq_printf() return values	2014-11-05 14:11:02 -05:00
xt_helper.c	…
xt_hl.c	…
xt_ipcomp.c	netfilter: xt_ipcomp: Use ntohs to ease sparse warning	2014-02-19 11:41:25 +01:00
xt_iprange.c	…
xt_ipvs.c	ipvs: Pass ipvs into conn_out_get	2015-09-24 09:34:41 +09:00
xt_l2tp.c	netfilter: introduce l2tp match extension	2014-01-09 21:36:39 +01:00
xt_length.c	…
xt_limit.c	…
xt_mac.c	…
xt_mark.c	netfilter: xt_MARK: Add ARP support	2015-05-14 13:00:27 +02:00
xt_multiport.c	…
xt_nat.c	…
xt_nfacct.c	netfilter: nfacct: per network namespace support	2015-08-07 11:50:56 +02:00
xt_osf.c	netfilter: nfnetlink: pass down netns pointer to call() and call_rcu()	2015-12-28 18:41:41 +01:00
xt_owner.c	netfilter: xt_owner: use skb_to_full_sk() helper	2015-11-08 20:56:39 -05:00
xt_physdev.c	netfilter: physdev: use helpers	2015-04-08 16:49:09 +02:00
xt_pkttype.c	…
xt_policy.c	…
xt_quota.c	…
xt_rateest.c	…
xt_realm.c	…
xt_recent.c	netfilter: x_tables: Use par->net instead of computing from the passed net devices	2015-09-18 21:58:25 +02:00
xt_repldata.h	net: netfilter: LLVMLinux: vlais-netfilter	2014-06-07 11:44:39 -07:00
xt_sctp.c	…
xt_set.c	netfilter: ipset: Fix coding styles reported by checkpatch.pl	2015-06-14 10:40:18 +02:00
xt_socket.c	netfilter: x_tables: Use par->net instead of computing from the passed net devices	2015-09-18 21:58:25 +02:00
xt_state.c	…
xt_statistic.c	net: replace macros net_random and net_srandom with direct calls to prandom	2014-01-14 15:15:25 -08:00
xt_string.c	net: Remove state argument from skb_find_text()	2015-02-22 15:59:54 -05:00
xt_tcpmss.c	…
xt_tcpudp.c	…
xt_time.c	…
xt_u32.c	…